GTA: The Bloody Harry
Harry was a busy cook, but one day, he just woke up and found out that his world has changed. It is now filled with flesh eating zombies. As of now, he isn't going to cook since he needs to take care of himself. You need to survive in this game, but there won't be any territories as you would be exploring. Zombies would drop some coins that you need to collect. You can use the money to buy some weapons later. You do understand that the best weapon won't come cheap, so keep on killing zombies and collecting those coins.