Probably one of the best survival games out there at the moment. A steep learning curve, and frustrating endings makes the game all the more satisfying to improve at. Unfortunately it's held back by tough character levelling, as some of the more important stats such as fitness and strength are near-impossible to level without AFK farming them for hours on end.

I'd give it a go if you're interested in spending some hours alone. Give multiplayer a go if you dare, but be warned that it can have some nasty desync issues.