You slept through the end of the world. The last thing you remember before the blackout is the kidnapping. When you come out of cryosleep, you are in a bunker — apparently the last human alive on the planet. A note from whoever put you there tells you to find the tower. That is where the answers are. From here you are on your own: exploring a desolate surface ruled by machines as strange as they are lethal, finding abilities that carve new paths through obstacles, and putting together what happened to you and to the world while climbing toward whatever is waiting at the top. If there is any hope left for humanity, it is you.