Interesting, so if I’m understanding correctly, it could be a during-the-cataclysm bug-out scenario.
For example, turn 1, you wake up in your bed in your home, hearing sounds of smashing, screaming, and gunfire. Rolling out of bed, you might peek out the window, if so you see masses of rampaging zombies and perhaps other creatures. Maybe we interject some nartative, like, “you don’t know what’s happening, but it’s definitely a bad situation, you need to get some stuff together and get out”.
Then it effectively starts a “looting minigame”, where you hustle around your home getting dressed and grabbing supplies. You might need to peek out windows to figure out your escape route. Meanwhile theres an invisible countdown until the horde reaches your home. After some number of turns have passed, zombies start attacking the building, crawling through windows and bashing down doors. In the next stage, you have to escape with your loot, either on foot or maybe in a vehicle. Theres a defined edge of the map, reaching it means you’ve escaped, and we might have a time skip to place you in a normal spawn location with your loot.
Fascinating idea, it would be a lot of work, but also a lot of fun.