Survive is a first person zombie survival shooter set in a procedurally generated open world. The idea of the game is what would you do in the zombie apocalypse. You are put in a random house in a huge completely procedurally generated world. You have to explore the procedural world to find the food, water, and guns you will need to survive the zombie horde.
As said before me, treat this game as a pre-order for an upcoming game which I hope prospers very well and I can't wait for it to release on Steam and have multiplayer and all the other planned events.