I get offtopic a lot, be warned. I also often mention a Minecraft clone called Minetest. The clone is nowhere near playable with it's default game in my opinion, but it's at least the start of a good open-source voxel rendering engine, and maybe one day it might be decently playable.
The Meaning of Life, the Universe, and Everything.
It's sad to see this forum get archived. I started out here, even long before I made an account, and enjoyed the suggestions, and the mods; even before I figured out how to install them and all I could do was to read their pages.