I received this game as a Christmas gift, and I am hooked. It's an open-world zombie RPG. It's single player. It was $10 (50% off) on Steam a couple days ago. You live day-to-day with a bunch of other survivors. Food, supplies, weapons, and ammo are needed to stay alive. It's a challenging game with a lot of white knuckle moments. Death is permanent, too. I've already lost a few survivors