Minetest just doesn’t feel like a game. It feels like a monotonous program. The original minecraft font (at this link) would do wonders to lighten the atmosphere. The sans-serif font used in the game just feels too professional, serious, and modern.
As per the idiom “play hard & work hard,” I like my play to be playful and my work to be productive. Minetest simply does not feel playful right now, so its hard to play.