With mods, this easily becomes the single best alternative to playing MC. Minetest is technically not a game, but a voxel engine which serves as a platform to make games. It's very simple to download fan projects right from the main menu and start playing them. The community is active and often creative - besides the expected imitations of MC survival mode (VoxeLibre, Mineclonia), there are linear games with stories or challenging puzzles. I expect the library of content will only continue to grow.