So, this is a fun game and works well on Linux and just about everything else. It is built on Java. You can set up your own server and have fun. So, basically, you spawn into a world where you have to survive. You make crude tools, chop trees, dig, mine, kill animals and monsters, and craft all the stuff you find into useful things.
It's fun. It does cost about $30.00 but then you get not stop. Oh, you down load the stable version and then look for the beta if you want to live on the wild side. There is an official Minecraft Wiki. Anyways, have fun with that.