SSTR — is a first-person puzzle stealth horror game in which you’ll have to board a colonial spaceship, where there are practically no survivors. The game takes place on board a colonial spaceship called Horizon. For a long time, everything here was controlled by an artificial intelligence named Sister. But suddenly the AI got out of control and started hunting people. Well, you, as the main character, will wake up from cryosleep at the moment when there is practically no one left on board. Chaos, blood smeared on the walls, terrible messages, corpses all this is not a complete list of what awaits you on the ship. You also need to do everything possible in order to turn off the AI.