City 20 is an upcoming survival sandbox adventure game that puts you in a quarantined secret city, one where nuclear work was done, after a radiological disaster of some kind has cut it off from the outside world. Waking up with your own past a mystery, you’re tasked to survive among the factions of people that have formed in this little, localized apocalypse. The developers have tried to create a world inspired by classics like Stalker, The Road, and La Jetée.