A few hours after a nuclear disaster. The radiation has not yet reached the city where you live. As you escape you get a sight of a nuclear bunker. Suddenly a huge stone falls off your heart. I am saved – you think. However, the fight for your life is still not over. As you entered the all-important bunker the door closes behind you immediately. There is nothing but darkness and silence here. Or is it? You will have less and less time to find the boot-codes of equipment necessary to stay alive to be completely secure. Running out of air and there are plenty of challenges to bring to life the abandoned bunker.