Gamify it.
The Purge
BATTLE ROYALE. Or maybe a sneaking game with a story and the purge is just in the background.
Rainbow Six Siege but without the techno-operator crap and with HUGE maps of towns with dozens of buildings all with full interiors.
Manhunt 3
Condemned but without the detective crap and good
the purge rp in gmod
Battle Royale.
50 players free for all in a randomly generated city layout
But there's at least 10 civilian characters in addition to the 50 players that have to survive
It would have to include rape/torture. Not in a million years.
Death match/battle royale where there is a period of no combat allowed you can use this time to gather resources for attacking other players or setting up defences to make your house into a fortress.
When the timed period is up death match is enabled and you can choose to team up or go solo against other players on the streets or in their defensive homes.
Gamify it.