diff --git a/mods/ENTITIES/mcl_mobs/api.lua b/mods/ENTITIES/mcl_mobs/api.lua
index d81d3766d8..d856334214 100644
--- a/mods/ENTITIES/mcl_mobs/api.lua
+++ b/mods/ENTITIES/mcl_mobs/api.lua
@@ -3418,6 +3418,7 @@ local mob_activate = function(self, staticdata, def, dtime)
 	self.timer = 0
 	self.blinktimer = 0
 	self.blinkstatus = false
+	self.collide_with_objects = false
 
 	-- check existing nametag
 	if not self.nametag then
@@ -3561,7 +3562,7 @@ local mob_step = function(self, dtime)
 	end
 
 	-- mob plays random sound at times
-	if random(1, 100) == 1 then
+	if random(1, 70) == 1 then
 		mob_sound(self, "random", true)
 	end
 
@@ -3924,7 +3925,35 @@ end
 end -- END mobs:register_mob function
 
 
+
+
+
+
+
+
+
+
+
+
+
+--BEGIN SPAWNING ALGORITHM
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
 -- count how many mobs of one type are inside an area
+--[[
 local count_mobs = function(pos, mobtype)
 
 	local num = 0
@@ -3968,7 +3997,7 @@ local count_mobs = function(pos, mobtype)
 
 	return num
 end
-
+]]--
 
 -- global functions
 
@@ -3978,9 +4007,49 @@ function mobs:spawn_abm_check(pos, node, name)
 end
 
 
-function mobs:spawn_specific(name, nodes, neighbors, min_light, max_light,
-	interval, chance, aoc, min_height, max_height, day_toggle, on_spawn)
+--[[
+	Custom elements changed:
+name:
+the mobs name
 
+dimension: 
+"overworld"
+"nether"
+"end"
+
+types of spawning:
+"air"
+"water"
+"ground"
+"lava"
+
+what is aoc???
+
+WARNING: BIOME INTEGRATION NEEDED -> How to get biome through lua??
+]]--
+
+--this is where all of the spawning information is kept
+local spawn_dictionary = {
+	["overworld"] = {},
+	["nether"] = {},
+	["end"] = {}
+}
+
+function mobs:spawn_specific(
+	name,
+	dimension,
+	type_of_spawning, 
+	min_light, 
+	max_light, 
+	interval, 
+	chance, 
+	aoc, 
+	min_height, 
+	max_height, 
+	day_toggle, 
+	on_spawn)
+
+	
 	-- Do mobs spawn at all?
 	if not mobs_spawn then
 		return
@@ -4001,7 +4070,6 @@ function mobs:spawn_specific(name, nodes, neighbors, min_light, max_light,
 
 		minetest.log("action",
 			string.format("[mobs] Chance setting for %s changed to %s (total: %s)", name, chance, aoc))
-
 	end
 
 	local spawn_action
@@ -4166,6 +4234,24 @@ function mobs:spawn_specific(name, nodes, neighbors, min_light, max_light,
 		spawn_action(pos, node, active_object_count, active_object_count_wider, name)
 	end
 
+
+	--load information into the spawn dictionary
+	local key = #spawn_dictionary[dimension] + 1
+
+	spawn_dictionary[dimension][key] = {}
+	spawn_dictionary[dimension][key]["name"]       = name
+	spawn_dictionary[dimension][key]["type"]       = type_of_spawning
+	spawn_dictionary[dimension][key]["min_light"]  = min_light
+	spawn_dictionary[dimension][key]["max_light"]  = max_light
+	spawn_dictionary[dimension][key]["interval"]   = interval
+	spawn_dictionary[dimension][key]["chance"]     = chance
+	spawn_dictionary[dimension][key]["aoc"]        = aoc
+	spawn_dictionary[dimension][key]["min_height"] = min_height
+	spawn_dictionary[dimension][key]["max_height"] = max_height
+	spawn_dictionary[dimension][key]["day_toggle"] = day_toggle
+	spawn_dictionary[dimension][key]["on_spawn"]   = spawn_abm_action
+	
+	--[[
 	minetest.register_abm({
 		label = name .. " spawning",
 		nodenames = nodes,
@@ -4175,18 +4261,24 @@ function mobs:spawn_specific(name, nodes, neighbors, min_light, max_light,
 		catch_up = false,
 		action = spawn_abm_action,
 	})
+	]]--
 end
 
 
 -- compatibility with older mob registration
+-- we're going to forget about this for now -j4i
+--[[
 function mobs:register_spawn(name, nodes, max_light, min_light, chance, active_object_count, max_height, day_toggle)
 
 	mobs:spawn_specific(name, nodes, {"air"}, min_light, max_light, 30,
 		chance, active_object_count, -31000, max_height, day_toggle)
 end
+]]--
 
 
+--I'm not sure what this does but disabling it doesn't cause a crash -j4i
 -- MarkBu's spawn function
+--[[
 function mobs:spawn(def)
 
 	local name = def.name
@@ -4205,6 +4297,160 @@ function mobs:spawn(def)
 	mobs:spawn_specific(name, nodes, neighbors, min_light, max_light, interval,
 		chance, active_object_count, min_height, max_height, day_toggle, on_spawn)
 end
+]]--
+
+
+local axis
+--inner and outer part of square donut radius
+local inner = 1
+local outer = 70
+local int = {-1,1}
+local position_calculation = function(pos)
+
+	pos = vector.floor(pos)
+
+	--this is used to determine the axis buffer from the player
+	axis = math.random(0,1)
+
+	--cast towards the direction
+	if axis == 0 then --x
+		pos.x = pos.x + math.random(inner,outer)*int[math.random(1,2)]
+		pos.z = pos.z + math.random(-outer,outer)
+	else --z
+		pos.z = pos.z + math.random(inner,outer)*int[math.random(1,2)]
+		pos.x = pos.x + math.random(-outer,outer)
+	end
+	return(pos)
+end
+
+--[[
+local decypher_limits_dictionary = {
+	["overworld"] = {mcl_vars.mg_overworld_min,mcl_vars.mg_overworld_max},
+	["nether"]    = {mcl_vars.mg_nether_min,   mcl_vars.mg_nether_max},
+	["end"]       = {mcl_vars.mg_end_min,      mcl_vars.mg_end_max}
+}
+]]--
+
+local function decypher_limits(posy)
+	--local min_max_table = decypher_limits_dictionary[dimension]
+	--return min_max_table[1],min_max_table[2]
+	posy = math.floor(posy)
+	return posy - 32, posy + 32
+end
+
+
+--todo mob limiting
+--MAIN LOOP
+local timer = 0
+minetest.register_globalstep(function(dtime)
+	timer = timer + dtime
+	if timer >= 15 then
+		timer = 0
+		for _,player in ipairs(minetest.get_connected_players()) do
+			for i = 1,math.random(5) do
+				local player_pos = player:get_pos()
+				local _,dimension = mcl_worlds.y_to_layer(player_pos.y)
+				local min,max = decypher_limits(player_pos.y)
+
+				local goal_pos = position_calculation(player_pos)
+				
+
+				local mob_def = spawn_dictionary[dimension][math.random(1,#spawn_dictionary[dimension])]
+
+				if not mob_def then --to catch a crazy error if it ever happens
+					minetest.log("error", "WARNING!! mob spawning attempted to index a NIL mob!")
+					goto continue
+				end
+
+				if mob_def.type == "ground" then
+
+					local spawning_position_list = minetest.find_nodes_in_area_under_air(vector.new(goal_pos.x,min,goal_pos.z), vector.new(goal_pos.x,max,goal_pos.z), {"group:solid"})
+
+					if #spawning_position_list <= 0 then
+						goto continue
+					end
+					
+					local spawning_position = spawning_position_list[math.random(1,#spawning_position_list)]
+
+					spawning_position.y = spawning_position.y + 1
+
+					local gotten_light = minetest.get_node_light(spawning_position)
+
+					if gotten_light and gotten_light >= mob_def.min_light and gotten_light <= mob_def.max_light then
+						minetest.add_entity(spawning_position, mob_def.name)
+					end
+				elseif mob_def.type == "air" then
+					local spawning_position_list = minetest.find_nodes_in_area(vector.new(goal_pos.x,min,goal_pos.z), vector.new(goal_pos.x,max,goal_pos.z), {"air"})
+
+					if #spawning_position_list <= 0 then
+						goto continue
+					end
+					
+					local spawning_position = spawning_position_list[math.random(1,#spawning_position_list)]
+
+					local gotten_light = minetest.get_node_light(spawning_position)
+
+					if gotten_light and gotten_light >= mob_def.min_light and gotten_light <= mob_def.max_light then
+						minetest.add_entity(spawning_position, mob_def.name)
+					end
+				elseif mob_def.type == "water" then
+					local spawning_position_list = minetest.find_nodes_in_area(vector.new(goal_pos.x,min,goal_pos.z), vector.new(goal_pos.x,max,goal_pos.z), {"group:water"})
+
+					if #spawning_position_list <= 0 then
+						goto continue
+					end
+					
+					local spawning_position = spawning_position_list[math.random(1,#spawning_position_list)]
+
+					local gotten_light = minetest.get_node_light(spawning_position)
+
+					if gotten_light and gotten_light >= mob_def.min_light and gotten_light <= mob_def.max_light then
+						minetest.add_entity(spawning_position, mob_def.name)
+					end
+				--elseif mob_def.type == "lava" then
+					--implement later
+				end
+				--local spawn minetest.find_nodes_in_area_under_air(vector.new(pos.x,pos.y-find_node_height,pos.z), vector.new(pos.x,pos.y+find_node_height,pos.z), {"group:solid"})
+
+
+				::continue:: --this is a safety catch
+			end
+		end
+	end
+end)
+
+
+
+
+
+
+
+
+
+
+
+
+
+--END SPAWNING ALGORITHM
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
 
 
 -- register arrow for shoot attack
diff --git a/mods/ENTITIES/mcl_mobs/mount.lua b/mods/ENTITIES/mcl_mobs/mount.lua
index d8ce484c32..9383ee067c 100644
--- a/mods/ENTITIES/mcl_mobs/mount.lua
+++ b/mods/ENTITIES/mcl_mobs/mount.lua
@@ -168,16 +168,20 @@ function mobs.detach(player, offset)
 
 	mcl_player.player_set_animation(player, "stand" , 30)
 
-	local pos = player:get_pos()
+	--local pos = player:get_pos()
 
-	pos = {x = pos.x + offset.x, y = pos.y + 0.2 + offset.y, z = pos.z + offset.z}
+	--pos = {x = pos.x + offset.x, y = pos.y + 0.2 + offset.y, z = pos.z + offset.z}
 
+	player:add_velocity(vector.new(math.random(-6,6),math.random(5,8),math.random(-6,6))) --throw the rider off
+
+	--[[
 	minetest.after(0.1, function(name, pos)
 		local player = minetest.get_player_by_name(name)
 		if player then
 			player:set_pos(pos)
 		end
 	end, player:get_player_name(), pos)
+	]]--
 end
 
 
diff --git a/mods/ENTITIES/mobs_mc/agent.lua b/mods/ENTITIES/mobs_mc/agent.lua
index 8fa7314cf2..cc9910ee6d 100644
--- a/mods/ENTITIES/mobs_mc/agent.lua
+++ b/mods/ENTITIES/mobs_mc/agent.lua
@@ -1,5 +1,5 @@
 --###################
---################### AGENT
+--################### AGENT - seemingly unused
 --###################
 
 local S = minetest.get_translator("mobs_mc")
diff --git a/mods/ENTITIES/mobs_mc/bat.lua b/mods/ENTITIES/mobs_mc/bat.lua
index 103579b67f..b6825bbbf4 100644
--- a/mods/ENTITIES/mobs_mc/bat.lua
+++ b/mods/ENTITIES/mobs_mc/bat.lua
@@ -64,7 +64,7 @@ else
 end
 
 -- Spawn on solid blocks at or below Sea level and the selected light level
-mobs:spawn_specific("mobs_mc:bat", mobs_mc.spawn.solid, {"air"}, 0, maxlight, 20, 5000, 2, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.water-1)
+mobs:spawn_specific("mobs_mc:bat", "overworld", "air", 0, maxlight, 20, 5000, 2, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.water-1)
 
 
 -- spawn eggs
diff --git a/mods/ENTITIES/mobs_mc/blaze.lua b/mods/ENTITIES/mobs_mc/blaze.lua
index fbffa79200..d56acdf380 100644
--- a/mods/ENTITIES/mobs_mc/blaze.lua
+++ b/mods/ENTITIES/mobs_mc/blaze.lua
@@ -1,6 +1,6 @@
 -- daufinsyd
 -- My work is under the LGPL terms
--- Model and mobs_blaze.png see https://github.com/22i/minecraft-voxel-blender-models
+-- Model and mobs_blaze.png see https://github.com/22i/minecraft-voxel-blender-models -hi 22i ~jordan4ibanez
 -- blaze.lua partial copy of mobs_mc/ghast.lua
 
 local S = minetest.get_translator("mobs_mc")
@@ -128,7 +128,7 @@ mobs:register_mob("mobs_mc:blaze", {
 	end,
 })
 
-mobs:spawn_specific("mobs_mc:blaze", mobs_mc.spawn.nether_fortress, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 5000, 3, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
+mobs:spawn_specific("mobs_mc:blaze", "nether", "ground", 0, minetest.LIGHT_MAX+1, 30, 5000, 3, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
 
 -- Blaze fireball
 mobs:register_arrow("mobs_mc:blaze_fireball", {
diff --git a/mods/ENTITIES/mobs_mc/chicken.lua b/mods/ENTITIES/mobs_mc/chicken.lua
index 325371e2b2..397b6b8da0 100644
--- a/mods/ENTITIES/mobs_mc/chicken.lua
+++ b/mods/ENTITIES/mobs_mc/chicken.lua
@@ -100,7 +100,7 @@ mobs:register_mob("mobs_mc:chicken", {
 })
 
 --spawn
-mobs:spawn_specific("mobs_mc:chicken", mobs_mc.spawn.grassland, {"air"}, 9, minetest.LIGHT_MAX+1, 30, 17000, 3, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:chicken", "overworld", "ground", 9, minetest.LIGHT_MAX+1, 30, 17000, 3, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:chicken", S("Chicken"), "mobs_mc_spawn_icon_chicken.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/cow+mooshroom.lua b/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
index 005af29807..a094d6d355 100644
--- a/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
+++ b/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
@@ -145,8 +145,9 @@ mobs:register_mob("mobs_mc:mooshroom", mooshroom_def)
 
 
 -- Spawning
-mobs:spawn_specific("mobs_mc:cow", mobs_mc.spawn.grassland, {"air"}, 9, minetest.LIGHT_MAX+1, 30, 17000, 10, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
-mobs:spawn_specific("mobs_mc:mooshroom", mobs_mc.spawn.mushroom_island, {"air"}, 9, minetest.LIGHT_MAX+1, 30, 17000, 5, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:cow", "overworld", "ground", 9, minetest.LIGHT_MAX+1, 30, 17000, 10, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+--WARNING: THIS NEEDS A BIOME INTEGRATION
+mobs:spawn_specific("mobs_mc:mooshroom", "overworld", "ground", 9, minetest.LIGHT_MAX+1, 30, 17000, 5, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 
 -- spawn egg
 mobs:register_egg("mobs_mc:cow", S("Cow"), "mobs_mc_spawn_icon_cow.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/creeper.lua b/mods/ENTITIES/mobs_mc/creeper.lua
index 9ee9e9d248..f283fac187 100644
--- a/mods/ENTITIES/mobs_mc/creeper.lua
+++ b/mods/ENTITIES/mobs_mc/creeper.lua
@@ -39,6 +39,8 @@ mobs:register_mob("mobs_mc:creeper", {
 	runaway_from = { "mobs_mc:ocelot", "mobs_mc:cat" },
 	attack_type = "explode",
 
+	--hssssssssssss
+
 	explosion_strength = 3,
 	explosion_radius = 3.5,
 	explosion_damage_radius = 3.5,
@@ -139,6 +141,9 @@ mobs:register_mob("mobs_mc:creeper_charged", {
 	pathfinding = 1,
 	visual = "mesh",
 	mesh = "mobs_mc_creeper.b3d",
+
+	--BOOM
+	
 	textures = {
 		{"mobs_mc_creeper.png",
 		"mobs_mc_creeper_charge.png"},
@@ -250,7 +255,7 @@ mobs:register_mob("mobs_mc:creeper_charged", {
 	glow = 3,
 })
 
-mobs:spawn_specific("mobs_mc:creeper", mobs_mc.spawn.solid, {"air"}, 0, 7, 20, 16500, 2, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:creeper", "overworld", "ground", 0, 7, 20, 16500, 2, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:creeper", S("Creeper"), "mobs_mc_spawn_icon_creeper.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/ender_dragon.lua b/mods/ENTITIES/mobs_mc/ender_dragon.lua
index fbdaf2bc98..92806d8788 100644
--- a/mods/ENTITIES/mobs_mc/ender_dragon.lua
+++ b/mods/ENTITIES/mobs_mc/ender_dragon.lua
@@ -77,6 +77,7 @@ mobs:register_mob("mobs_mc:enderdragon", {
 	end,
 	on_die = function(self, pos)
 		if self._portal_pos then
+			mcl_portals.spawn_gateway_portal()
 			mcl_structures.call_struct(self._portal_pos, "end_exit_portal_open")
 			if self._initial then
 				mcl_experience.throw_experience(pos, 11500) -- 500 + 11500 = 12000
diff --git a/mods/ENTITIES/mobs_mc/enderman.lua b/mods/ENTITIES/mobs_mc/enderman.lua
index 22599dd9e0..ca3bc84cea 100644
--- a/mods/ENTITIES/mobs_mc/enderman.lua
+++ b/mods/ENTITIES/mobs_mc/enderman.lua
@@ -295,7 +295,8 @@ mobs:register_mob("mobs_mc:enderman", {
 		-- ARROW / DAYTIME PEOPLE AVOIDANCE BEHAVIOUR HERE.
 		-- Check for arrows and people nearby.
 		local enderpos = self.object:get_pos()
-		local objs = minetest.get_objects_inside_radius(enderpos, 4)
+		enderpos.y = enderpos.y + 1.5
+		local objs = minetest.get_objects_inside_radius(enderpos, 2)
 		for n = 1, #objs do
 			local obj = objs[n]
 			if obj then
@@ -307,7 +308,7 @@ mobs:register_mob("mobs_mc:enderman", {
 				else
 					local lua = obj:get_luaentity()
 					if lua then
-						if lua.name == "mcl_bows:arrow_entity" then
+						if lua.name == "mcl_bows:arrow_entity" or lua.name == "mcl_throwing:snowball_entity" then
 							self:teleport(nil)
 						end
 					end
@@ -328,36 +329,46 @@ mobs:register_mob("mobs_mc:enderman", {
 			--end
 		end
 		-- Check to see if people are near by enough to look at us.
-		local objs = minetest.get_objects_inside_radius(enderpos, 64)
-		local obj
-		for n = 1, #objs do
-			obj = objs[n]
-			if obj then
-				if minetest.is_player(obj) then
+		for _,obj in pairs(minetest.get_connected_players()) do
+			
+			--check if they are within radius
+			local player_pos = obj:get_pos()
+			if player_pos then -- prevent crashing in 1 in a million scenario
+
+				local ender_distance = vector.distance(enderpos, player_pos)
+				if ender_distance <= 64 then
+
 					-- Check if they are looking at us.
-					local player_pos = obj:get_pos()
 					local look_dir_not_normalized = obj:get_look_dir()
 					local look_dir = vector.normalize(look_dir_not_normalized)
-					local look_pos = vector.new({x = look_dir.x+player_pos.x, y = look_dir.y+player_pos.y + 1.5, z = look_dir.z+player_pos.z}) -- Arbitrary value (1.5) is head level according to player info mod.
-					-- Cast up to 64 to see if player is looking at enderman.
-					for n = 1,64,.25 do
-						local node = minetest.get_node(look_pos)
-						if node.name ~= "air" then
-							break
-						end
-						if look_pos.x-1<enderpos.x and look_pos.x+1>enderpos.x and look_pos.y-2.89<enderpos.y and look_pos.y-2>enderpos.y and look_pos.z-1<enderpos.z and look_pos.z+1>enderpos.z then
-							self.provoked = "staring"
-							self.attack = minetest.get_player_by_name(obj:get_player_name())
-							break
-						else
-							if self.provoked == "staring" then
-								self.provoked = "broke_contact"
-							end
-						end
-						look_pos.x = look_pos.x + (.25 * look_dir.x)
-						look_pos.y = look_pos.y + (.25 * look_dir.y)
-						look_pos.z = look_pos.z + (.25 * look_dir.z)
+					local player_eye_height = obj:get_properties().eye_height
+
+					--skip player if they have no data - log it
+					if not player_eye_height then
+						minetest.log("error", "Enderman at location: ".. dump(enderpos).." has indexed a null player!")
+						goto continue
 					end
+
+					--calculate very quickly the exact location the player is looking
+					--within the distance between the two "heads" (player and enderman)
+					local look_pos = vector.new(player_pos.x, player_pos.y + player_eye_height, player_pos.z)
+					local look_pos_base = look_pos
+					local ender_eye_pos = vector.new(enderpos.x, enderpos.y + 2.75, enderpos.z)
+					local eye_distance_from_player = vector.distance(ender_eye_pos, look_pos)
+					look_pos = vector.add(look_pos, vector.multiply(look_dir, eye_distance_from_player))
+					
+					--if looking in general head position, turn hostile
+					if minetest.line_of_sight(ender_eye_pos, look_pos_base) and vector.distance(look_pos, ender_eye_pos) <= 0.4 then
+						self.provoked = "staring"
+						self.attack = minetest.get_player_by_name(obj:get_player_name())
+						break
+					else -- I'm not sure what this part does, but I don't want to break anything - jordan4ibanez
+						if self.provoked == "staring" then
+							self.provoked = "broke_contact"
+						end						
+					end
+
+					::continue:: -- this is a sweep over statement, this can be used to continue even when errors occurred
 				end
 			end
 		end
@@ -551,11 +562,11 @@ mobs:register_mob("mobs_mc:enderman", {
 
 
 -- End spawn
-mobs:spawn_specific("mobs_mc:enderman", mobs_mc.spawn.solid, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 3000, 12, mobs_mc.spawn_height.end_min, mobs_mc.spawn_height.end_max)
+mobs:spawn_specific("mobs_mc:enderman", "end", "ground", 0, minetest.LIGHT_MAX+1, 30, 3000, 12, mobs_mc.spawn_height.end_min, mobs_mc.spawn_height.end_max)
 -- Overworld spawn
-mobs:spawn_specific("mobs_mc:enderman", mobs_mc.spawn.solid, {"air"}, 0, 7, 30, 19000, 2, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:enderman", "overworld", "ground", 0, 7, 30, 19000, 2, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 -- Nether spawn (rare)
-mobs:spawn_specific("mobs_mc:enderman", mobs_mc.spawn.solid, {"air"}, 0, 7, 30, 27500, 4, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
+mobs:spawn_specific("mobs_mc:enderman", "nether", "ground", 0, 7, 30, 27500, 4, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:enderman", S("Enderman"), "mobs_mc_spawn_icon_enderman.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/ghast.lua b/mods/ENTITIES/mobs_mc/ghast.lua
index 7aed9395e1..e2f6b13692 100644
--- a/mods/ENTITIES/mobs_mc/ghast.lua
+++ b/mods/ENTITIES/mobs_mc/ghast.lua
@@ -75,7 +75,7 @@ mobs:register_mob("mobs_mc:ghast", {
 })
 
 
-mobs:spawn_specific("mobs_mc:ghast", mobs_mc.spawn.nether, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 18000, 2, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
+mobs:spawn_specific("mobs_mc:ghast", "nether", "air", 0, minetest.LIGHT_MAX+1, 30, 18000, 2, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
 
 -- fireball (projectile)
 mobs:register_arrow("mobs_mc:fireball", {
diff --git a/mods/ENTITIES/mobs_mc/guardian_elder.lua b/mods/ENTITIES/mobs_mc/guardian_elder.lua
index a58a4a5b76..089f6e38f7 100644
--- a/mods/ENTITIES/mobs_mc/guardian_elder.lua
+++ b/mods/ENTITIES/mobs_mc/guardian_elder.lua
@@ -106,7 +106,7 @@ mobs:register_mob("mobs_mc:guardian_elder", {
 	view_range = 16,
 })
 
--- Spawning disabled due to size issues
+-- Spawning disabled due to size issues <- what do you mean? -j4i
 -- TODO: Re-enable spawning
 -- mobs:spawn_specific("mobs_mc:guardian_elder", mobs_mc.spawn.water, mobs_mc.spawn_water, 0, minetest.LIGHT_MAX+1, 30, 40000, 2, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.water-18)
 
diff --git a/mods/ENTITIES/mobs_mc/horse.lua b/mods/ENTITIES/mobs_mc/horse.lua
index 1c2df41f35..00c292c1de 100644
--- a/mods/ENTITIES/mobs_mc/horse.lua
+++ b/mods/ENTITIES/mobs_mc/horse.lua
@@ -231,7 +231,6 @@ local horse = {
 				temper_increase = 5
 			elseif (iname == mobs_mc.items.golden_apple) then
 				temper_increase = 10
-
 			-- Trying to ride
 			elseif not self.driver then
 				self.object:set_properties({stepheight = 1.1})
@@ -511,8 +510,8 @@ mobs:register_mob("mobs_mc:mule", mule)
 
 --===========================
 --Spawn Function
-mobs:spawn_specific("mobs_mc:horse", mobs_mc.spawn.grassland_savanna, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 15000, 4, mobs_mc.spawn_height.water+3, mobs_mc.spawn_height.overworld_max)
-mobs:spawn_specific("mobs_mc:donkey", mobs_mc.spawn.grassland_savanna, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 15000, 4, mobs_mc.spawn_height.water+3, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:horse", "overworld", "ground", 0, minetest.LIGHT_MAX+1, 30, 15000, 4, mobs_mc.spawn_height.water+3, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:donkey", "overworld", "ground", 0, minetest.LIGHT_MAX+1, 30, 15000, 4, mobs_mc.spawn_height.water+3, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:horse", S("Horse"), "mobs_mc_spawn_icon_horse.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/llama.lua b/mods/ENTITIES/mobs_mc/llama.lua
index 36d020a656..0efb8e0ab2 100644
--- a/mods/ENTITIES/mobs_mc/llama.lua
+++ b/mods/ENTITIES/mobs_mc/llama.lua
@@ -217,7 +217,7 @@ mobs:register_mob("mobs_mc:llama", {
 })
 
 --spawn
-mobs:spawn_specific("mobs_mc:llama", mobs_mc.spawn.savanna, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 15000, 5, mobs_mc.spawn_height.water+15, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:llama", "overworld", "ground", 0, minetest.LIGHT_MAX+1, 30, 15000, 5, mobs_mc.spawn_height.water+15, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:llama", S("Llama"), "mobs_mc_spawn_icon_llama.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/ocelot.lua b/mods/ENTITIES/mobs_mc/ocelot.lua
index eca74d3ba5..3b5273185e 100644
--- a/mods/ENTITIES/mobs_mc/ocelot.lua
+++ b/mods/ENTITIES/mobs_mc/ocelot.lua
@@ -152,6 +152,9 @@ mobs:register_mob("mobs_mc:cat", cat)
 local base_spawn_chance = 5000
 
 -- Spawn ocelot
+--they get the same as the llama because I'm trying to rework so much of this code right now -j4i
+mobs:spawn_specific("mobs_mc:ocelot", "overworld", "ground", 0, minetest.LIGHT_MAX+1, 30, 15000, 5, mobs_mc.spawn_height.water+15, mobs_mc.spawn_height.overworld_max)
+--[[
 mobs:spawn({
 	name = "mobs_mc:ocelot",
 	nodes = mobs_mc.spawn.jungle,
@@ -163,8 +166,8 @@ mobs:spawn({
 	min_height = mobs_mc.spawn_height.water+1, -- Right above ocean level
 	max_height = mobs_mc.spawn_height.overworld_max,
 	on_spawn = function(self, pos)
-		--[[ Note: Minecraft has a 1/3 spawn failure rate.
-		In this mod it is emulated by reducing the spawn rate accordingly (see above). ]]
+		 Note: Minecraft has a 1/3 spawn failure rate.
+		In this mod it is emulated by reducing the spawn rate accordingly (see above). 
 
 		-- 1/7 chance to spawn 2 ocelot kittens
 		if pr:next(1,7) == 1 then
@@ -207,6 +210,7 @@ mobs:spawn({
 		end
 	end,
 })
+]]--
 
 -- spawn eggs
 -- FIXME: The spawn icon shows a cat texture, not an ocelot texture
diff --git a/mods/ENTITIES/mobs_mc/parrot.lua b/mods/ENTITIES/mobs_mc/parrot.lua
index 407cb44667..c67263fb92 100644
--- a/mods/ENTITIES/mobs_mc/parrot.lua
+++ b/mods/ENTITIES/mobs_mc/parrot.lua
@@ -90,8 +90,8 @@ mobs:register_mob("mobs_mc:parrot", {
 
 })
 
--- Parrots spawn rarely in jungles. TODO: Also check for jungle *biome*
-mobs:spawn_specific("mobs_mc:parrot", {"mcl_core:jungletree", "mcl_core:jungleleaves"}, {"air"}, 0, minetest.LIGHT_MAX+1, 7, 30000, 1, mobs_mc.spawn_height.water+7, mobs_mc.spawn_height.overworld_max)
+-- Parrots spawn rarely in jungles. TODO: Also check for jungle *biome* <- I'll get to this eventually -j4i
+mobs:spawn_specific("mobs_mc:parrot","overworld", "air", 0, minetest.LIGHT_MAX+1, 7, 30000, 1, mobs_mc.spawn_height.water+7, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:parrot", S("Parrot"), "mobs_mc_spawn_icon_parrot.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/pig.lua b/mods/ENTITIES/mobs_mc/pig.lua
index 38700b6ca7..143fcb4950 100644
--- a/mods/ENTITIES/mobs_mc/pig.lua
+++ b/mods/ENTITIES/mobs_mc/pig.lua
@@ -182,7 +182,7 @@ mobs:register_mob("mobs_mc:pig", {
 	end,
 })
 
-mobs:spawn_specific("mobs_mc:pig", mobs_mc.spawn.grassland, {"air"}, 9, minetest.LIGHT_MAX+1, 30, 15000, 8, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:pig", "overworld", "ground", 9, minetest.LIGHT_MAX+1, 30, 15000, 8, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:pig", S("Pig"), "mobs_mc_spawn_icon_pig.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/polar_bear.lua b/mods/ENTITIES/mobs_mc/polar_bear.lua
index 459ca29b4a..745c13a26c 100644
--- a/mods/ENTITIES/mobs_mc/polar_bear.lua
+++ b/mods/ENTITIES/mobs_mc/polar_bear.lua
@@ -67,7 +67,7 @@ mobs:register_mob("mobs_mc:polar_bear", {
 })
 
 
-mobs:spawn_specific("mobs_mc:polar_bear", mobs_mc.spawn.snow, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 7000, 3, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:polar_bear", "overworld", "ground", 0, minetest.LIGHT_MAX+1, 30, 7000, 3, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 
 -- spawn egg
 mobs:register_egg("mobs_mc:polar_bear", S("Polar Bear"), "mobs_mc_spawn_icon_polarbear.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/rabbit.lua b/mods/ENTITIES/mobs_mc/rabbit.lua
index e167649f6f..f09a70584a 100644
--- a/mods/ENTITIES/mobs_mc/rabbit.lua
+++ b/mods/ENTITIES/mobs_mc/rabbit.lua
@@ -107,8 +107,11 @@ end
 mobs:register_mob("mobs_mc:killer_bunny", killer_bunny)
 
 -- Mob spawning rules.
--- Different skins depending on spawn location
+-- Different skins depending on spawn location <- we'll get to this when the spawning algorithm is fleshed out
 
+mobs:spawn_specific("mobs_mc:rabbit", "overworld", "ground", 9, minetest.LIGHT_MAX+1, 30, 15000, 8, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+
+--[[
 local spawn = {
 	name = "mobs_mc:rabbit",
 	neighbors = {"air"},
@@ -165,6 +168,7 @@ spawn_grass.on_spawn = function(self, pos)
 	self.object:set_properties({textures = self.base_texture})
 end
 mobs:spawn(spawn_grass)
+]]--
 
 -- Spawn egg
 mobs:register_egg("mobs_mc:rabbit", S("Rabbit"), "mobs_mc_spawn_icon_rabbit.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/sheep.lua b/mods/ENTITIES/mobs_mc/sheep.lua
index 84650b4ddd..b3400ab5f5 100644
--- a/mods/ENTITIES/mobs_mc/sheep.lua
+++ b/mods/ENTITIES/mobs_mc/sheep.lua
@@ -303,7 +303,7 @@ mobs:register_mob("mobs_mc:sheep", {
 		end
 	end,
 })
-mobs:spawn_specific("mobs_mc:sheep", mobs_mc.spawn.grassland, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 15000, 3, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:sheep", "overworld", "ground", 0, minetest.LIGHT_MAX+1, 30, 15000, 3, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:sheep", S("Sheep"), "mobs_mc_spawn_icon_sheep.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/shulker.lua b/mods/ENTITIES/mobs_mc/shulker.lua
index faaf2ac405..583c5eed1e 100644
--- a/mods/ENTITIES/mobs_mc/shulker.lua
+++ b/mods/ENTITIES/mobs_mc/shulker.lua
@@ -81,4 +81,4 @@ mobs:register_arrow("mobs_mc:shulkerbullet", {
 
 mobs:register_egg("mobs_mc:shulker", S("Shulker"), "mobs_mc_spawn_icon_shulker.png", 0)
 
-mobs:spawn_specific("mobs_mc:shulker", mobs_mc.spawn.end_city, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 5000, 2, mobs_mc.spawn_height.end_min, mobs_mc.spawn_height.end_max)
+mobs:spawn_specific("mobs_mc:shulker", "end", "ground", 0, minetest.LIGHT_MAX+1, 30, 5000, 2, mobs_mc.spawn_height.end_min, mobs_mc.spawn_height.end_max)
diff --git a/mods/ENTITIES/mobs_mc/skeleton+stray.lua b/mods/ENTITIES/mobs_mc/skeleton+stray.lua
index cb12e905d5..84e51c5170 100644
--- a/mods/ENTITIES/mobs_mc/skeleton+stray.lua
+++ b/mods/ENTITIES/mobs_mc/skeleton+stray.lua
@@ -139,13 +139,13 @@ table.insert(stray.drops, {
 mobs:register_mob("mobs_mc:stray", stray)
 
 -- Overworld spawn
-mobs:spawn_specific("mobs_mc:skeleton", mobs_mc.spawn.solid, {"air"}, 0, 7, 20, 17000, 2, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:skeleton", "overworld", "ground", 0, 7, 20, 17000, 2, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 -- Nether spawn
-mobs:spawn_specific("mobs_mc:skeleton", mobs_mc.spawn.nether_fortress, {"air"}, 0, 7, 30, 10000, 3, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
+mobs:spawn_specific("mobs_mc:skeleton", "nether", "ground", 0, 7, 30, 10000, 3, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
 
 -- Stray spawn
 -- TODO: Spawn directly under the sky
-mobs:spawn_specific("mobs_mc:stray", mobs_mc.spawn.snow, {"air"}, 0, 7, 20, 19000, 2, mobs_mc.spawn_height.water, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:stray", "overworld", "ground", 0, 7, 20, 19000, 2, mobs_mc.spawn_height.water, mobs_mc.spawn_height.overworld_max)
 
 
 -- spawn eggs
diff --git a/mods/ENTITIES/mobs_mc/skeleton_wither.lua b/mods/ENTITIES/mobs_mc/skeleton_wither.lua
index e4a1f86fc6..d9de90d84b 100644
--- a/mods/ENTITIES/mobs_mc/skeleton_wither.lua
+++ b/mods/ENTITIES/mobs_mc/skeleton_wither.lua
@@ -94,7 +94,7 @@ mobs:register_mob("mobs_mc:witherskeleton", {
 })
 
 --spawn
-mobs:spawn_specific("mobs_mc:witherskeleton", mobs_mc.spawn.nether_fortress, {"air"}, 0, 7, 30, 5000, 5, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
+mobs:spawn_specific("mobs_mc:witherskeleton", "nether", "ground", 0, 7, 30, 5000, 5, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:witherskeleton", S("Wither Skeleton"), "mobs_mc_spawn_icon_witherskeleton.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/slime+magma_cube.lua b/mods/ENTITIES/mobs_mc/slime+magma_cube.lua
index fd1f92bb49..2f9e8c8a90 100644
--- a/mods/ENTITIES/mobs_mc/slime+magma_cube.lua
+++ b/mods/ENTITIES/mobs_mc/slime+magma_cube.lua
@@ -157,9 +157,9 @@ mobs:register_mob("mobs_mc:slime_tiny", slime_tiny)
 local smin = mobs_mc.spawn_height.overworld_min
 local smax = mobs_mc.spawn_height.water - 23
 
-mobs:spawn_specific("mobs_mc:slime_tiny", mobs_mc.spawn.solid, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 12000, 4, smin, smax)
-mobs:spawn_specific("mobs_mc:slime_small", mobs_mc.spawn.solid, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 8500, 4, smin, smax)
-mobs:spawn_specific("mobs_mc:slime_big", mobs_mc.spawn.solid, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 10000, 4, smin, smax)
+mobs:spawn_specific("mobs_mc:slime_tiny", "overworld", "ground", 0, minetest.LIGHT_MAX+1, 30, 12000, 4, smin, smax)
+mobs:spawn_specific("mobs_mc:slime_small", "overworld", "ground", 0, minetest.LIGHT_MAX+1, 30, 8500, 4, smin, smax)
+mobs:spawn_specific("mobs_mc:slime_big", "overworld", "ground", 0, minetest.LIGHT_MAX+1, 30, 10000, 4, smin, smax)
 
 -- Magma cube
 local magma_cube_big = {
@@ -272,13 +272,13 @@ mobs:register_mob("mobs_mc:magma_cube_tiny", magma_cube_tiny)
 local mmin = mobs_mc.spawn_height.nether_min
 local mmax = mobs_mc.spawn_height.nether_max
 
-mobs:spawn_specific("mobs_mc:magma_cube_tiny", mobs_mc.spawn.nether, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 15000, 4, mmin, mmax)
-mobs:spawn_specific("mobs_mc:magma_cube_small", mobs_mc.spawn.nether, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 15500, 4, mmin, mmax)
-mobs:spawn_specific("mobs_mc:magma_cube_big", mobs_mc.spawn.nether, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 16000, 4, mmin, mmax)
+mobs:spawn_specific("mobs_mc:magma_cube_tiny", "nether", "ground", 0, minetest.LIGHT_MAX+1, 30, 15000, 4, mmin, mmax)
+mobs:spawn_specific("mobs_mc:magma_cube_small", "nether", "ground", 0, minetest.LIGHT_MAX+1, 30, 15500, 4, mmin, mmax)
+mobs:spawn_specific("mobs_mc:magma_cube_big", "nether", "ground", 0, minetest.LIGHT_MAX+1, 30, 16000, 4, mmin, mmax)
 
-mobs:spawn_specific("mobs_mc:magma_cube_tiny", mobs_mc.spawn.nether_fortress, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 11000, 4, mmin, mmax)
-mobs:spawn_specific("mobs_mc:magma_cube_small", mobs_mc.spawn.nether_fortress, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 11100, 4, mmin, mmax)
-mobs:spawn_specific("mobs_mc:magma_cube_big", mobs_mc.spawn.nether_fortress, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 11200, 4, mmin, mmax)
+--mobs:spawn_specific("mobs_mc:magma_cube_tiny", mobs_mc.spawn.nether_fortress, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 11000, 4, mmin, mmax)
+--mobs:spawn_specific("mobs_mc:magma_cube_small", mobs_mc.spawn.nether_fortress, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 11100, 4, mmin, mmax)
+--mobs:spawn_specific("mobs_mc:magma_cube_big", mobs_mc.spawn.nether_fortress, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 11200, 4, mmin, mmax)
 
 
 -- spawn eggs
diff --git a/mods/ENTITIES/mobs_mc/spider.lua b/mods/ENTITIES/mobs_mc/spider.lua
index 0bb03a9c7c..1361e6a3ae 100644
--- a/mods/ENTITIES/mobs_mc/spider.lua
+++ b/mods/ENTITIES/mobs_mc/spider.lua
@@ -87,7 +87,7 @@ cave_spider.sounds.base_pitch = 1.25
 mobs:register_mob("mobs_mc:cave_spider", cave_spider)
 
 
-mobs:spawn_specific("mobs_mc:spider", mobs_mc.spawn.solid, {"air"}, 0, 7, 30, 17000, 2, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:spider", "overworld", "ground", 0, 7, 30, 17000, 2, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:spider", S("Spider"), "mobs_mc_spawn_icon_spider.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/squid.lua b/mods/ENTITIES/mobs_mc/squid.lua
index 1877a2104c..2dbb7c557d 100644
--- a/mods/ENTITIES/mobs_mc/squid.lua
+++ b/mods/ENTITIES/mobs_mc/squid.lua
@@ -62,7 +62,7 @@ mobs:register_mob("mobs_mc:squid", {
 
 local water = mobs_mc.spawn_height.water
 --name, nodes, neighbours, minlight, maxlight, interval, chance, active_object_count, min_height, max_height
-mobs:spawn_specific("mobs_mc:squid", mobs_mc.spawn.water, {mobs_mc.items.water_source}, 0, minetest.LIGHT_MAX+1, 30, 5500, 3, water-16, water)
+mobs:spawn_specific("mobs_mc:squid", "overworld", "water", 0, minetest.LIGHT_MAX+1, 30, 5500, 3, water-16, water)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:squid", S("Squid"), "mobs_mc_spawn_icon_squid.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/villager.lua b/mods/ENTITIES/mobs_mc/villager.lua
index 68644266f4..0b53d8015f 100644
--- a/mods/ENTITIES/mobs_mc/villager.lua
+++ b/mods/ENTITIES/mobs_mc/villager.lua
@@ -1074,7 +1074,7 @@ mobs:register_mob("mobs_mc:villager", {
 
 
 
-mobs:spawn_specific("mobs_mc:villager", mobs_mc.spawn.village, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 20, 4, mobs_mc.spawn_height.water+1, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:villager", "overworld", "ground", 0, minetest.LIGHT_MAX+1, 30, 20, 4, mobs_mc.spawn_height.water+1, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:villager", S("Villager"), "mobs_mc_spawn_icon_villager.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/villager_zombie.lua b/mods/ENTITIES/mobs_mc/villager_zombie.lua
index 09539fa76e..bcede2183c 100644
--- a/mods/ENTITIES/mobs_mc/villager_zombie.lua
+++ b/mods/ENTITIES/mobs_mc/villager_zombie.lua
@@ -146,8 +146,8 @@ mobs:register_mob("mobs_mc:villager_zombie", {
 	harmed_by_heal = true,
 })
 
-mobs:spawn_specific("mobs_mc:villager_zombie", mobs_mc.spawn.village, {"air"}, 0, 7, 30, 4090, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
-mobs:spawn_specific("mobs_mc:villager_zombie", mobs_mc.spawn.solid, {"air"}, 0, 7, 30, 60000, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:villager_zombie", "overworld", "ground", 0, 7, 30, 4090, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:villager_zombie", "overworld", "ground", 0, 7, 30, 60000, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:villager_zombie", S("Zombie Villager"), "mobs_mc_spawn_icon_zombie_villager.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/witch.lua b/mods/ENTITIES/mobs_mc/witch.lua
index 383cbd36fe..f9f9b8d1f0 100644
--- a/mods/ENTITIES/mobs_mc/witch.lua
+++ b/mods/ENTITIES/mobs_mc/witch.lua
@@ -99,7 +99,7 @@ mobs:register_arrow("mobs_mc:potion_arrow", {
 	end
 })
 
--- TODO: Spawn when witch works properly
+-- TODO: Spawn when witch works properly <- eventually -j4i
 --mobs:spawn_specific("mobs_mc:witch", mobs_mc.spawn.jungle, {"air"}, 0, minetest.LIGHT_MAX-6, 12, 20000, 2, mobs_mc.spawn_height.water-6, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
diff --git a/mods/ENTITIES/mobs_mc/wolf.lua b/mods/ENTITIES/mobs_mc/wolf.lua
index fe30318954..953c2df729 100644
--- a/mods/ENTITIES/mobs_mc/wolf.lua
+++ b/mods/ENTITIES/mobs_mc/wolf.lua
@@ -232,6 +232,6 @@ end
 mobs:register_mob("mobs_mc:dog", dog)
 
 -- Spawn
-mobs:spawn_specific("mobs_mc:wolf", mobs_mc.spawn.wolf, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 9000, 7, mobs_mc.spawn_height.water+3, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:wolf", "overworld", "ground", 0, minetest.LIGHT_MAX+1, 30, 9000, 7, mobs_mc.spawn_height.water+3, mobs_mc.spawn_height.overworld_max)
 
 mobs:register_egg("mobs_mc:wolf", S("Wolf"), "mobs_mc_spawn_icon_wolf.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/zombie.lua b/mods/ENTITIES/mobs_mc/zombie.lua
index df9727d34f..64f99d34dd 100644
--- a/mods/ENTITIES/mobs_mc/zombie.lua
+++ b/mods/ENTITIES/mobs_mc/zombie.lua
@@ -135,11 +135,11 @@ mobs:register_mob("mobs_mc:baby_husk", baby_husk)
 
 -- Spawning
 
-mobs:spawn_specific("mobs_mc:zombie", mobs_mc.spawn.solid, {"air"}, 0, 7, 30, 6000, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:zombie", "overworld", "ground", 0, 7, 30, 6000, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 -- Baby zombie is 20 times less likely than regular zombies
-mobs:spawn_specific("mobs_mc:baby_zombie", mobs_mc.spawn.solid, {"air"}, 0, 7, 30, 60000, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
-mobs:spawn_specific("mobs_mc:husk", mobs_mc.spawn.desert, {"air"}, 0, 7, 30, 6500, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
-mobs:spawn_specific("mobs_mc:baby_husk", mobs_mc.spawn.desert, {"air"}, 0, 7, 30, 65000, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:baby_zombie", "overworld", "ground", 0, 7, 30, 60000, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:husk", "overworld", "ground", 0, 7, 30, 6500, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+mobs:spawn_specific("mobs_mc:baby_husk", "overworld", "ground", 0, 7, 30, 65000, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 
 -- Spawn eggs
 mobs:register_egg("mobs_mc:husk", S("Husk"), "mobs_mc_spawn_icon_husk.png", 0)
diff --git a/mods/ENTITIES/mobs_mc/zombiepig.lua b/mods/ENTITIES/mobs_mc/zombiepig.lua
index 8c29a4bff7..e996425c8b 100644
--- a/mods/ENTITIES/mobs_mc/zombiepig.lua
+++ b/mods/ENTITIES/mobs_mc/zombiepig.lua
@@ -111,12 +111,12 @@ baby_pigman.child = 1
 mobs:register_mob("mobs_mc:baby_pigman", baby_pigman)
 
 -- Regular spawning in the Nether
-mobs:spawn_specific("mobs_mc:pigman", mobs_mc.spawn.solid, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 6000, 3, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
+mobs:spawn_specific("mobs_mc:pigman", "nether", "ground", 0, minetest.LIGHT_MAX+1, 30, 6000, 3, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
 -- Baby zombie is 20 times less likely than regular zombies
-mobs:spawn_specific("mobs_mc:baby_pigman", mobs_mc.spawn.solid, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 100000, 4, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
+mobs:spawn_specific("mobs_mc:baby_pigman", "nether", "ground", 0, minetest.LIGHT_MAX+1, 30, 100000, 4, mobs_mc.spawn_height.nether_min, mobs_mc.spawn_height.nether_max)
 
 -- Spawning in Nether portals in the Overworld
-mobs:spawn_specific("mobs_mc:pigman", mobs_mc.spawn.nether_portal, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 500, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
+--mobs:spawn_specific("mobs_mc:pigman", mobs_mc.spawn.nether_portal, {"air"}, 0, minetest.LIGHT_MAX+1, 30, 500, 4, mobs_mc.spawn_height.overworld_min, mobs_mc.spawn_height.overworld_max)
 
 -- spawn eggs
 mobs:register_egg("mobs_mc:pigman", S("Zombie Pigman"), "mobs_mc_spawn_icon_zombie_pigman.png", 0)
diff --git a/mods/ITEMS/mcl_portals/init.lua b/mods/ITEMS/mcl_portals/init.lua
index 2fd96afadb..080051ffa4 100644
--- a/mods/ITEMS/mcl_portals/init.lua
+++ b/mods/ITEMS/mcl_portals/init.lua
@@ -1,6 +1,8 @@
 -- Load files
 
-mcl_portals = {}
+mcl_portals = {
+	storage = minetest.get_mod_storage(),
+}
 
 -- Nether portal:
 -- Obsidian frame, activated by flint and steel
@@ -10,3 +12,5 @@ dofile(minetest.get_modpath("mcl_portals").."/portal_nether.lua")
 -- Red nether brick block frame, activated by an eye of ender
 dofile(minetest.get_modpath("mcl_portals").."/portal_end.lua")
 
+dofile(minetest.get_modpath("mcl_portals").."/portal_gateway.lua")
+
diff --git a/mods/ITEMS/mcl_portals/portal_gateway.lua b/mods/ITEMS/mcl_portals/portal_gateway.lua
new file mode 100644
index 0000000000..9fa35a36f5
--- /dev/null
+++ b/mods/ITEMS/mcl_portals/portal_gateway.lua
@@ -0,0 +1,121 @@
+local S = minetest.get_translator("mcl_portals")
+local storage = mcl_portals.storage
+
+local gateway_positions = {
+	{x = 96, y = -26925, z = 0},
+	{x = 91, y = -26925, z = 29},
+	{x = 77, y = -26925, z = 56},
+	{x = 56, y = -26925, z = 77},
+	{x = 29, y = -26925, z = 91},
+	{x = 0, y = -26925, z = 96},
+	{x = -29, y = -26925, z = 91},
+	{x = -56, y = -26925, z = 77},
+	{x = -77, y = -26925, z = 56},
+	{x = -91, y = -26925, z = 29},
+	{x = -96, y = -26925, z = 0},
+	{x = -91, y = -26925, z = -29},
+	{x = -77, y = -26925, z = -56},
+	{x = -56, y = -26925, z = -77},
+	{x = -29, y = -26925, z = -91},
+	{x = 0, y = -26925, z = -96},
+	{x = 29, y = -26925, z = -91},
+	{x = 56, y = -26925, z = -77},
+	{x = 77, y = -26925, z = -56},
+	{x = 91, y = -26925, z = -29},
+}
+
+local function spawn_gateway_portal(pos, dest_str)
+	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_end_gateway_portal.mts"
+	return mcl_structures.place_schematic(vector.add(pos, vector.new(-1, -2, -1)), path, "0", nil, true, nil, dest_str and function(p1, p2, size, orientation, pr, param)
+		-- minetest.get_voxel_manip():read_from_map(pos, pos)
+		minetest.get_meta(vector.add(p1, {x=1,y=2,z=1})):set_string("mcl_portals:gateway_destination", param.dest_str)
+		print(param.dest_str)
+	end, nil, {dest_str=dest_str})
+end
+
+function mcl_portals.spawn_gateway_portal()
+	local id = storage:get_int("gateway_last_id") + 1
+	local pos = gateway_positions[id]
+	if not pos then return end
+	storage:set_int("gateway_last_id", id)
+	spawn_gateway_portal(pos)
+end
+
+local gateway_def = table.copy(minetest.registered_nodes["mcl_portals:portal_end"])
+gateway_def.description = S("End Gateway Portal")
+gateway_def._tt_help = S("Used to construct end gateway portals")
+gateway_def._doc_items_longdesc = S("An End gateway portal teleports creatures and objects to the outer End (and back!).")
+gateway_def._doc_items_usagehelp = S("Throw an ender pearl into the portal to teleport. Entering an Gateway portal near the Overworld teleports you to the outer End. At this destination another gateway portal will be constructed, which you can use to get back.")
+gateway_def.after_destruct = nil
+gateway_def.drawtype = "normal"
+gateway_def.node_box = nil
+gateway_def.walkable = true
+gateway_def.tiles[3] = nil
+minetest.register_node("mcl_portals:portal_gateway", gateway_def)
+
+local function find_destination_pos(minp, maxp)
+	for y = maxp.y, minp.y, -1 do
+		for x = maxp.x, minp.x, -1 do
+			for z = maxp.z, minp.z, -1 do
+				local pos = vector.new(x, y, z)
+				local nn = minetest.get_node(pos).name
+				if nn ~= "ignore" and nn ~= "mcl_portals:portal_gateway" and nn ~= "mcl_core:bedrock" then
+					local def = minetest.registered_nodes[nn]
+					if def and def.walkable then
+						return vector.add(pos, vector.new(0, 1.5, 0))
+					end
+				end
+			end
+		end
+	end
+end
+
+local preparing = {}
+
+local function teleport(pos, obj)
+	local meta = minetest.get_meta(pos)
+	local dest_portal
+	local dest_str = meta:get_string("mcl_portals:gateway_destination")
+	local pos_str = minetest.pos_to_string(pos)
+	if dest_str == "" then
+		dest_portal = vector.multiply(vector.direction(vector.new(0, pos.y, 0), pos), math.random(768, 1024))
+		dest_portal.y = -26970
+		spawn_gateway_portal(dest_portal, pos_str)
+		meta:set_string("mcl_portals:gateway_destination", minetest.pos_to_string(dest_portal))
+	else
+		dest_portal = minetest.string_to_pos(dest_str)
+	end
+	local minp = vector.subtract(dest_portal, vector.new(5, 40, 5))
+	local maxp = vector.add(dest_portal, vector.new(5, 10, 5))
+	preparing[pos_str] = true
+	minetest.emerge_area(
+		minp,
+		maxp,
+		function(blockpos, action, calls_remaining, param)
+			if calls_remaining < 1 then
+				local minp, maxp, dest_portal, obj, pos_str = param.minp, param.maxp, param.dest_portal, param.obj, param.pos_str
+				if obj and obj:is_player() or obj:get_luaentity() then
+					obj:set_pos(find_destination_pos(minp, maxp) or vector.add(dest_portal, vector.new(0, 3.5, 0)))
+				end
+				preparing[pos_str] = false
+			end
+		end,
+		{minp=vector.new(minp), maxp=vector.new(maxp), dest_portal=vector.new(dest_portal), obj=obj, pos_str=pos_str}
+	)
+end
+
+minetest.register_abm({
+	label = "End gateway portal teleportation",
+	nodenames = {"mcl_portals:portal_gateway"},
+	interval = 0.1,
+	chance = 1,
+	action = function(pos)
+		if preparing[minetest.pos_to_string(pos)] then return end
+		for _, obj in pairs(minetest.get_objects_inside_radius(pos, 1)) do
+			if obj:get_hp() > 0 then
+				teleport(pos, obj)
+				return
+			end
+		end
+	end,
+})
diff --git a/mods/ITEMS/mcl_portals/portal_nether.lua b/mods/ITEMS/mcl_portals/portal_nether.lua
index 50a3bde39d..825c95e05d 100644
--- a/mods/ITEMS/mcl_portals/portal_nether.lua
+++ b/mods/ITEMS/mcl_portals/portal_nether.lua
@@ -1,5 +1,7 @@
 local S = minetest.get_translator("mcl_portals")
 
+local SCAN_2_MAP_CHUNKS = true -- slower but helps to find more suitable places
+
 -- Localize functions for better performance
 local abs = math.abs
 local ceil = math.ceil
@@ -26,7 +28,7 @@ local DISTANCE_MAX			= 128
 local PORTAL				= "mcl_portals:portal"
 local OBSIDIAN				= "mcl_core:obsidian"
 local O_Y_MIN, O_Y_MAX			= max(mcl_vars.mg_overworld_min, -31), min(mcl_vars.mg_overworld_max_official, 2048)
-local N_Y_MIN, N_Y_MAX			= mcl_vars.mg_bedrock_nether_bottom_min, mcl_vars.mg_bedrock_nether_top_max
+local N_Y_MIN, N_Y_MAX			= mcl_vars.mg_bedrock_nether_bottom_min, mcl_vars.mg_bedrock_nether_top_max - H_MIN
 local O_DY, N_DY			= O_Y_MAX - O_Y_MIN + 1, N_Y_MAX - N_Y_MIN + 1
 
 -- Alpha and particles
@@ -47,7 +49,7 @@ local chatter = {}
 local queue = {}
 local chunks = {}
 
-local storage = minetest.get_mod_storage()
+local storage = mcl_portals.storage
 local exits = {}
 local keys = minetest.deserialize(storage:get_string("nether_exits_keys") or "return {}") or {}
 for _, key in pairs(keys) do
@@ -193,7 +195,7 @@ end
 local function destroy_nether_portal(pos, node)
 	if not node then return end
 	local nn, orientation = node.name, node.param2
-	local obsidian = nn == OBSIDIAN 
+	local obsidian = nn == OBSIDIAN
 
 	local check_remove = function(pos, orientation)
 		local node = get_node(pos)
@@ -486,6 +488,14 @@ local function ecb_scan_area_2(blockpos, action, calls_remaining, param)
 		create_portal_2(pos0, name, obj)
 		return
 	end
+
+	if param.next_chunk_1 and param.next_chunk_2 and param.next_pos then
+		local pos1, pos2, pos = param.next_chunk_1, param.next_chunk_2, param.next_pos
+		log("action", "[mcl_portals] Making additional search in chunk below, because current one doesn't contain any air space for portal, target pos "..pos_to_string(pos))
+		minetest.emerge_area(pos1, pos2, ecb_scan_area_2, {pos = pos, pos1 = pos1, pos2 = pos2, name=name, obj=obj})
+		return
+	end
+
 	log("action", "[mcl_portals] found no space, reverting to target pos "..pos_to_string(pos).." - creating a portal")
 	if pos.y < lava then
 		pos.y = lava + 1
@@ -507,18 +517,35 @@ local function create_portal(pos, limit1, limit2, name, obj)
 
 	-- we need to emerge the area here, but currently (mt5.4/mcl20.71) map generation is slow
 	-- so we'll emerge single chunk only: 5x5x5 blocks, 80x80x80 nodes maximum
+	-- and maybe one more chunk from below if (SCAN_2_MAP_CHUNKS = true)
 
 	local pos1 = add(mul(mcl_vars.pos_to_chunk(pos), mcl_vars.chunk_size_in_nodes), mcl_vars.central_chunk_offset_in_nodes)
 	local pos2 = add(pos1, mcl_vars.chunk_size_in_nodes - 1)
 
+	if not SCAN_2_MAP_CHUNKS then
+		if limit1 and limit1.x and limit1.y and limit1.z then
+			pos1 = {x = max(min(limit1.x, pos.x), pos1.x), y = max(min(limit1.y, pos.y), pos1.y), z = max(min(limit1.z, pos.z), pos1.z)}
+		end
+		if limit2 and limit2.x and limit2.y and limit2.z  then
+			pos2 = {x = min(max(limit2.x, pos.x), pos2.x), y = min(max(limit2.y, pos.y), pos2.y), z = min(max(limit2.z, pos.z), pos2.z)}
+		end
+		minetest.emerge_area(pos1, pos2, ecb_scan_area_2, {pos = vector.new(pos), pos1 = pos1, pos2 = pos2, name=name, obj=obj})
+		return
+	end
+
+	-- Basically the copy of code above, with minor additions to continue the search in single additional chunk below:
+	local next_chunk_1 = {x = pos1.x, y = pos1.y - mcl_vars.chunk_size_in_nodes, z = pos1.z}
+	local next_chunk_2 = add(next_chunk_1, mcl_vars.chunk_size_in_nodes - 1)
+	local next_pos = {x = pos.x, y=next_chunk_2.y, z = pos.z}
 	if limit1 and limit1.x and limit1.y and limit1.z then
 		pos1 = {x = max(min(limit1.x, pos.x), pos1.x), y = max(min(limit1.y, pos.y), pos1.y), z = max(min(limit1.z, pos.z), pos1.z)}
+		next_chunk_1 = {x = max(min(limit1.x, next_pos.x), next_chunk_1.x), y = max(min(limit1.y, next_pos.y), next_chunk_1.y), z = max(min(limit1.z, next_pos.z), next_chunk_1.z)}
 	end
 	if limit2 and limit2.x and limit2.y and limit2.z  then
 		pos2 = {x = min(max(limit2.x, pos.x), pos2.x), y = min(max(limit2.y, pos.y), pos2.y), z = min(max(limit2.z, pos.z), pos2.z)}
+		next_chunk_2 = {x = min(max(limit2.x, next_pos.x), next_chunk_2.x), y = min(max(limit2.y, next_pos.y), next_chunk_2.y), z = min(max(limit2.z, next_pos.z), next_chunk_2.z)}
 	end
-
-	minetest.emerge_area(pos1, pos2, ecb_scan_area_2, {pos = vector.new(pos), pos1 = pos1, pos2 = pos2, name=name, obj=obj})
+	minetest.emerge_area(pos1, pos2, ecb_scan_area_2, {pos = vector.new(pos), pos1 = pos1, pos2 = pos2, name=name, obj=obj, next_chunk_1 = next_chunk_1, next_chunk_2 = next_chunk_2, next_pos = next_pos})
 end
 
 local function available_for_nether_portal(p)
diff --git a/mods/MAPGEN/mcl_biomes/init.lua b/mods/MAPGEN/mcl_biomes/init.lua
index 66de6c13a7..5f0510344b 100644
--- a/mods/MAPGEN/mcl_biomes/init.lua
+++ b/mods/MAPGEN/mcl_biomes/init.lua
@@ -1484,6 +1484,7 @@ local function register_dimension_biomes()
 		node_stone = "mcl_nether:netherrack",
 		node_water = "air",
 		node_river_water = "air",
+		node_cave_liquid = "air",
 		y_min = mcl_vars.mg_nether_min,
 		-- FIXME: For some reason the Nether stops generating early if this constant is not added.
 		-- Figure out why.
@@ -1501,6 +1502,7 @@ local function register_dimension_biomes()
 		node_filler = "air",
 		node_water = "air",
 		node_river_water = "air",
+		node_cave_liquid = "air",
 		-- FIXME: For some reason the End stops generating early if this constant is not added.
 		-- Figure out why.
 		y_min = mcl_vars.mg_end_min,
diff --git a/mods/MAPGEN/mcl_end_island/init.lua b/mods/MAPGEN/mcl_end_island/init.lua
index fb062bf771..7301762572 100644
--- a/mods/MAPGEN/mcl_end_island/init.lua
+++ b/mods/MAPGEN/mcl_end_island/init.lua
@@ -8,12 +8,10 @@ local noisemap = PerlinNoiseMap({
 }, {x = 151, y = 30, z = 151}):get_3d_map({x = 0, y = 0, z = 0})
 
 local c_end_stone = minetest.get_content_id("mcl_end:end_stone")
-
-local x_offset = mcl_vars.mg_end_platform_pos.x - 27
 local y_offset = -2
 
 minetest.register_on_generated(function(minp, maxp)
-	if maxp.y < (-27025 + y_offset) or minp.y > (-27000 + y_offset + 4) or maxp.x < (-75 + x_offset) or minp.x > (75 + x_offset) or maxp.z < -75 or minp.z > 75 then
+	if maxp.y < (-27025 + y_offset) or minp.y > (-27000 + y_offset + 4) or maxp.x < -75 or minp.x > 75  or maxp.z < -75 or minp.z > 75 then
 		return
 	end
 
@@ -21,10 +19,10 @@ minetest.register_on_generated(function(minp, maxp)
 	local data = vm:get_data()
 	local area = VoxelArea:new({MinEdge = emin, MaxEdge = emax})
 
-	for idx in area:iter(math.max(minp.x, -75 + x_offset), math.max(minp.y, -27025 + y_offset + 4), math.max(minp.z, -75), math.min(maxp.x, 75 + x_offset), math.min(maxp.y, -27000 + y_offset), math.min(maxp.z, 75)) do
+	for idx in area:iter(math.max(minp.x, -75), math.max(minp.y, -27025 + y_offset + 4), math.max(minp.z, -75), math.min(maxp.x, 75), math.min(maxp.y, -27000 + y_offset), math.min(maxp.z, 75)) do
 		local pos = area:position(idx)
 		local y = 27025 + pos.y - y_offset
-		if noisemap[pos.x + 75 - x_offset + 1][y + 1][pos.z + 75 + 1] > (math.abs(1 - y / 25) ^ 2 + math.abs((pos.x - x_offset) / 75) ^ 2 + math.abs(pos.z / 75) ^ 2) then
+		if noisemap[pos.x + 75 + 1][y + 1][pos.z + 75 + 1] > (math.abs(1 - y / 25) ^ 2 + math.abs(pos.x / 75) ^ 2 + math.abs(pos.z / 75) ^ 2) then
 			data[idx] = c_end_stone
 		end
 	end
diff --git a/mods/MAPGEN/mcl_mapgen_core/init.lua b/mods/MAPGEN/mcl_mapgen_core/init.lua
index e9d9368ade..1ee861e4a2 100644
--- a/mods/MAPGEN/mcl_mapgen_core/init.lua
+++ b/mods/MAPGEN/mcl_mapgen_core/init.lua
@@ -55,10 +55,7 @@ local superflat = mg_name == "flat" and minetest.get_mapgen_setting("mcl_superfl
 local WITCH_HUT_HEIGHT = 3 -- Exact Y level to spawn witch huts at. This height refers to the height of the floor
 
 -- End exit portal position
-local END_EXIT_PORTAL_POS = table.copy(mcl_vars.mg_end_platform_pos)
-END_EXIT_PORTAL_POS.x = END_EXIT_PORTAL_POS.x - 30
-END_EXIT_PORTAL_POS.z = END_EXIT_PORTAL_POS.z - 3
-END_EXIT_PORTAL_POS.y = END_EXIT_PORTAL_POS.y - 3
+local END_EXIT_PORTAL_POS = vector.new(-3, -27003, -3)
 
 -- Content IDs
 local c_bedrock = minetest.get_content_id("mcl_core:bedrock")
diff --git a/mods/MAPGEN/mcl_structures/init.lua b/mods/MAPGEN/mcl_structures/init.lua
index d75854352d..2ce5d94b5b 100644
--- a/mods/MAPGEN/mcl_structures/init.lua
+++ b/mods/MAPGEN/mcl_structures/init.lua
@@ -11,10 +11,10 @@ local function ecb_place(blockpos, action, calls_remaining, param)
 	if calls_remaining >= 1 then return end
 	minetest.place_schematic(param.pos, param.schematic, param.rotation, param.replacements, param.force_placement, param.flags)
 	if param.after_placement_callback and param.p1 and param.p2 then
-		param.after_placement_callback(param.p1, param.p2, param.size, param.rotation, param.pr)
+		param.after_placement_callback(param.p1, param.p2, param.size, param.rotation, param.pr, param.callback_param)
 	end
 end
-mcl_structures.place_schematic = function(pos, schematic, rotation, replacements, force_placement, flags, after_placement_callback, pr)
+mcl_structures.place_schematic = function(pos, schematic, rotation, replacements, force_placement, flags, after_placement_callback, pr, callback_param)
 	local s = loadstring(minetest.serialize_schematic(schematic, "lua", {lua_use_comments = false, lua_num_indent_spaces = 0}) .. " return(schematic)")()
 	if s and s.size then
 		local x, z = s.size.x, s.size.z
@@ -32,7 +32,7 @@ mcl_structures.place_schematic = function(pos, schematic, rotation, replacements
 		local p1 = {x=pos.x    , y=pos.y           , z=pos.z    }
 		local p2 = {x=pos.x+x-1, y=pos.y+s.size.y-1, z=pos.z+z-1}
 		minetest.log("verbose","[mcl_structures] size=" ..minetest.pos_to_string(s.size) .. ", rotation=" .. tostring(rotation) .. ", emerge from "..minetest.pos_to_string(p1) .. " to " .. minetest.pos_to_string(p2))
-		local param = {pos=vector.new(pos), schematic=s, rotation=rotation, replacements=replacements, force_placement=force_placement, flags=flags, p1=p1, p2=p2, after_placement_callback = after_placement_callback, size=vector.new(s.size), pr=pr}
+		local param = {pos=vector.new(pos), schematic=s, rotation=rotation, replacements=replacements, force_placement=force_placement, flags=flags, p1=p1, p2=p2, after_placement_callback = after_placement_callback, size=vector.new(s.size), pr=pr, callback_param=callback_param}
 		minetest.emerge_area(p1, p2, ecb_place, param)
 	end
 end
@@ -89,6 +89,8 @@ mcl_structures.call_struct = function(pos, struct_style, rotation, pr)
 		return mcl_structures.generate_end_exit_portal(pos, rotation)
 	elseif struct_style == "end_exit_portal_open" then
 		return mcl_structures.generate_end_exit_portal_open(pos, rotation)
+	elseif struct_style == "end_gateway_portal" then
+		return mcl_structures.generate_end_gateway_portal(pos, rotation)
 	elseif struct_style == "end_portal_shrine" then
 		return mcl_structures.generate_end_portal_shrine(pos, rotation, pr)
 	end
@@ -324,6 +326,11 @@ mcl_structures.generate_end_exit_portal_open = function(pos, rot)
 	return mcl_structures.place_schematic(pos, path, rot or "0", nil, true)
 end
 
+mcl_structures.generate_end_gateway_portal = function(pos, rot)
+	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_end_gateway_portal.mts"
+	return mcl_structures.place_schematic(pos, path, rot or "0", nil, true)
+end
+
 local function shrine_placement_callback(p1, p2, size, rotation, pr)
 	-- Find and setup spawner with silverfish
 	local spawners = minetest.find_nodes_in_area(p1, p2, "mcl_mobspawners:spawner")
@@ -541,7 +548,7 @@ end
 
 -- Debug command
 minetest.register_chatcommand("spawnstruct", {
-	params = "desert_temple | desert_well | igloo | witch_hut | boulder | ice_spike_small | ice_spike_large | fossil | end_exit_portal | end_exit_portal_opens | end_portal_shrine | nether_portal | dungeon",
+	params = "desert_temple | desert_well | igloo | witch_hut | boulder | ice_spike_small | ice_spike_large | fossil | end_exit_portal | end_exit_portal_opens | end_portal_shrine | nether_portal | gateway_portal | dungeon",
 	description = S("Generate a pre-defined structure near your position."),
 	privs = {debug = true},
 	func = function(name, param)
@@ -575,12 +582,16 @@ minetest.register_chatcommand("spawnstruct", {
 			mcl_structures.generate_end_exit_portal(pos, rot, pr)
 		elseif param == "end_exit_portal_open" then
 			mcl_structures.generate_end_exit_portal_open(pos, rot, pr)
+		elseif param == "end_gateway_portal" then
+			mcl_structures.generate_end_gateway_portal(pos, rot, pr)
 		elseif param == "end_portal_shrine" then
 			mcl_structures.generate_end_portal_shrine(pos, rot, pr)
 		elseif param == "dungeon" and mcl_dungeons and mcl_dungeons.spawn_dungeon then
 			mcl_dungeons.spawn_dungeon(pos, rot, pr)
 		elseif param == "nether_portal" and mcl_portals and mcl_portals.spawn_nether_portal then
 			mcl_portals.spawn_nether_portal(pos, rot, pr, name)
+		elseif param == "gateway_portal" and mcl_portals.spawn_gateway_portal then
+			mcl_portals.spawn_gateway_portal(pos, rot, pr, name)
 		elseif param == "" then
 			message = S("Error: No structure type given. Please use “/spawnstruct <type>”.")
 			errord = true
diff --git a/mods/MAPGEN/mcl_structures/schematics/mcl_structures_end_gateway_portal.mts b/mods/MAPGEN/mcl_structures/schematics/mcl_structures_end_gateway_portal.mts
new file mode 100644
index 0000000000..24b06a1c8f
Binary files /dev/null and b/mods/MAPGEN/mcl_structures/schematics/mcl_structures_end_gateway_portal.mts differ