Graphics of Crysis, world as large and developed as WoW, gameplay like Fallout 3, in a zombie apocalypse. A REAL zombie survival game. No Chargers, no witches ready to *****slap your face off, no FPS like elements that are putting me off. Collecting, holding out, building fortresses and banding together with friends is a game that seems will never be released, for fear of it being too Earth-shattering awesome.
there is also a a game called Class 3 being made by the same developer soon. it is only SP, although it may have co-op.