SOMA

The monsters are avoidable and the station is the antagonist: doors that need power, cables that need rerouting, an ocean floor that keeps reminding you how deep you are. The safe mode removes the hostiles entirely if you want the argument without the chase.

What makes it last is the conversations. Every major beat asks whether a copied mind is a person, and the game refuses to score your answer. Twenty gigabytes for twelve hours, and an ending that most players are still arguing about a decade later.