Nebulous is a physics-based puzzle game from Namazu Studios. Players guide Commander Dash Johnson through maze-like levels by manipulating gravity and momentum. The game challenges players to arrange puzzle elements so that Commander Johnson safely reaches the exit wormhole.

Levels are multi-dimensional, with up to five playfields arranged in a cube that players can rotate. Gameplay mechanics include unreliable gravity, trampolines, and conveyor belts. Nebulous supports Oculus Rift VR, allowing head-based interaction with the game world, though it can also be played with a mouse.