It's not just "that". Minetest is actually a "voxel game engine", and allows all sorts of things. A better showcase is the community's mod catalog, "ContentDB"

It's not just "that". Minetest is actually a "voxel game engine", and allows all sorts of things. A better showcase is the community's mod catalog, "ContentDB" [1]. Some mods/games even try to break out from the cubic theme, for instance "Little Lady" [2] or the "Rocks" mod [3] It should be mentioned, though, that beyond those "extreme" cases, the MC-like voxel model is vastly easier to deal with for mod creators, and that's really a key point. That's the kind of thing a high-school kids can hack because it's Lua and PNG textures all the way. [1] https://content.minetest.net/ https://content.minetest.net/ [2] https://content.minetest.net/packages/Just_Visiting/littlelady/ https://content.minetest.net/packages/Just_Visiting/littlela... [3] https://content.minetest.net/packages/Just_Visiting/rocks/ https://content.minetest.net/packages/Just_Visiting/rocks/