Don't trust your eyes. A spot-the-difference horror with photography and a mysterious story. Explore 3 levels, find 100+ anomalies, and manage your sanity — mistakes warp reality. Uncover the truth of Project 404!
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Match strength key:80+65+50+<50Anomaly 404
SteamAbout Anomaly 404
As a journalist, you're infiltrating a secret military bunker to expose the horrifying truth of "Project 404". Your mission: find and photograph the anomalies. Just remember — your eyes will deceive you.

INSTRUCTIONS
Anomaly 404 is a first-person psychological horror. The gameplay is a spot-the-difference experience. If you understand the instructions above, you are ready to play.

KEY FEATURES
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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