Ubuntu Guide shows you how to install Minetest 0.4.6 in Ubuntu 13.04/ 12.10/ 12.04
Minetest is an infinite-world block sandbox game and game engine inspired by MineCraft. It's free and open-source. It supports both survival and creative modes along with multiplayer support, dynamic lighting, and an "infinite" map generator.Install Minetest 0.4.6 in Ubuntu 13.04/ 12.10/ 12.04 From PPA