I was talking video games with this guy I know and he mentioned this game that's in development that I haven't heard of, probably because it's going to be a PS4 release (with a possible PC release later).
No Man's Sky sounds intriguing but difficult to get your head around. It's pitched as an open sandbox universe that's enormous with planets and such that you can fly to, land on, explore, get resources from. And while it's one universe for everyone, the chances of running into another player is very slim.
http://www.no-mans-sky.com/