No. of rooms
The warning sirens came out of nowhere. Nobody knows what’s going on. Outside, panic and chaos broke out, but all you care about at this moment is how to get to your closest nuclear shelter with your friends as quickly as possible. You’re lucky, one bunker is right next to you. You enter it and you think you are out of the worst.
Well, you find out that the bunker you found yourself in is already totally free of electricity, without water, and worst of all, there is oxygen for exactly 60 minutes. All you have to do is make the bunker functional to survive the apocalypse. First task: turn on the backup generator. Second task: turn on the main water supply. Last task: turn on the main oxygen supply. You have plan. But, can you do it in 60 minutes? Goal is not to escape. But survive!