As a kid, there was one game I loved playing on my friend’s PC. It was called Descent, and it did something that games these days still very rarely do. It utilized a “6DOF” (six degrees of freedom) control scheme, allowing you to pilot a spaceship and navigate around a base infested with rogue drones. Because gravity isn’t a factor in deep space, there was rarely a clear distinction between “up” and “down,” which made the tunneled levels feel particularly labyrinthine as you tried to figure out which way you were going.