Just wanted to share, I've been on an Empyrion Galactic Survival kick for a little while now and they just released a pretty neat update. I am currently playing on the UnknownSkies server and the folks there are pretty nice and helpful. They have some other servers as well, unknownskies.com has all the info.
More about Empyrion, it's basically minecraft, rust, and space engineers all got together and had a baby. The game can be challenging and you get to build anything you set your mind and time to. You also have to mine resources and manage food and oxygen, it's pretty cool. I will link the steam page when I get home, I can't get to it while at work :-(
Cheers!