GTA: Bloody Sunset
Zombies have taken over the world and now the city is no more as all the people there had turned into zombies. Now, they are setting their eye on your land. You have other plans than to urn into zombies and you won't give up your life. The idea here is to make sure that you get all the zombies before they can even get closer. Each zombie kill would earn you money. You can use the money to buy some upgrades for your home or buy better gun. The game would be harder, so it would be advisable to buy better guns.