Luanti

Love Minecraft-style block worlds but want to make your own rules? Luanti, formerly Minetest, is an open source voxel game-creation platform with easy modding.

Mods are written in Lua, with bundled games, multiplayer and support for many platforms.

Features

Voxels:Block building.

Lua mods:Easy creation.

Multiplayer:Servers.

Cross-platform:Desktop and Android.