Simple. Random guy got frozen in time, then woke up to see his world got turned upside-down. Then he tried to find a way to escape his bunker and encounter... something from outside. The end. But seriously, give it a try. Pretty good, I guarantee. Btw, good reviews are always welcomed.

Brad, a 17 years old teen was unfrozen from his cryopod after a thousand-year-long sleep, only to find out that humanity has long gone extinct, his entire bunker has died from power failure and he's trapped inside the facility with no food. Brad quickly loses all hope and was on the verge of breaking down when suddenly, the security cam caught something moving outside the bunker...