Obviously there are many zombie games for the PS3. All the games I know of are either story based or give you no reason to leave your safe zone.
It's a simple matter of food and water. If you dehydrate and/or starve to death, you are going to need to leave your base in order to survive, rather than sit in your fortress and pick off zombies from safety.
Resident Evil - Story based. No need to progress. Your character can stand in an area forever and get bored.
Dead Island - Story based. You can stand in a safe zone and zombies can't get you. You only eat food when your health is low. Your health only gets low when you're killing the walking dead.
Red Dead Redemption: Undead Nightmare - Again, story based. Other than roaming around fighting the undead, there's really no need to leave a safe zone other to explore and kill more zombies.
Minecraft PS3 - Almost what I'm looking for. Build and/or find your own base, monsters attack at night, eat food to survive by farming or finding. I have two problems with this game. The graphics are low and it's not specifically designed for zombies.
The Last of Us - Great game, but again it is story based, and you need to only find items to progress through the story and survive.
Have I missed something? Do you know of any games that have come out or are coming out soon that have this "eat to survive" feature? Or do I need to look into PC gaming to cater my zombie needs?
Added (1). A couple examples of what I'm looking for that is on the PC are DayZ and 7 Days to Die.
In both of them, you'll starve and/or dehydrate if you don't find food. It forces you to go outside and look for at least that, if not other things on the way.