Recs.
Updated
Unturned is a voxel based zombie survival game where you team up with your friends, in order to remain among the living. Fight off zombies. Gain XP to level up, and gather resources and weapons along the way.
SpecsUpdate
Pros
Pro Fair F2P model where no single person has a false advantage over anyone else
The game’s free-to-play model allows anyone to play free of charge; those who are willing to spend $5 get access to a separate server that grants double experience. So while it is not pay-to-win, spending some money will increase how quickly you can advance in the game.
Cons
Con Toxic Community
As with most survival PvP games with guns , most of the playerbase will KOS - Kill On Sight, also there is a lot of 'kid admins', and other immature players that will kick you for doing stuff that is meant to be done, like base raiding or so.
Otherwise it has a very good survival,crafting and building system and is easy to learn, hard to master.
Con Low production value
Unturned feels like a rehash of DayZ with Minecraft looks. It was built by a teenager in his spare time and it's understandable that the game will not be of the highest quality possible. But many of the mechanics found in this game have been done before, and sometimes better.