Fallen earth
think a post apocalypse fps mmo, with absolute freedom, a awesome player driven economy and a super deep crafting system (basically, you craft every damn thing you need, this aint no "loot poopin out a dragons ass" you gotta scav for a living!)
the starting section is a bit slow, and the tutorial is lacking, but once you get to the second sector, thats when the game opens up- with its amazing faction system and uber fun open world pvp