Aquarium Anomaly

Aquarium Anomaly is a short first-person observational game set inside an aquarium shark tunnel that repeats endlessly. The developer cites Exit 8 and Platform 8 as inspirations. Sharks can be seen on both sides of the walkway and overhead, and the player is asked to stay on the walkway as they move through the tunnel.

The core mechanic centres on spotting irregularities. As the player walks the tunnel, they must judge whether anything about the scene has changed from what they consider normal. If an anomaly is present, the correct choice is to exit the way you came; if nothing is out of place, the player continues forward. Making the wrong decision sends the player back to the entrance, and the goal is to reach the far end of the tunnel to complete the visit.

The developer estimates a playthrough at roughly 15 to 60 minutes. Streaming, recording and uploading videos of the game are permitted, including monetised content, with no prior permission needed and no restrictions on spoilers.