diff --git a/mapgen.lua b/mapgen.lua
new file mode 100644
index 0000000..d60c60a
--- /dev/null
+++ b/mapgen.lua
@@ -0,0 +1,10 @@
+minetest.register_decoration({
+    deco_type = "simple",
+    place_on = {"mcl_nether:netherrack"},
+    sidelen = 16,
+    fill_ratio = 0.1,
+    biomes = {"Nether"},
+    y_max = mcl_vars.mg_nether_max,
+    y_min = mcl_vars.mg_nether_min,
+    decoration = "mc:warped_fungus", -- TODO: Add Warped and Crimson Forest and place fungus in correct biomes
+})
\ No newline at end of file