80%Excellent matchThe Anomaly Project
82%40082% positive reviews, Very Positive across 400 reviews·Horror · Psychological Horror
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A co-op anomaly horror game for 1–6 players. Trapped in an abandoned manor that continuously changes, you must compare your surroundings, question every movement, and detect unsettling anomalies to survive the deadly ritual.
Anomaly Manor
SteamAnomaly Manor is a cooperative horror anomaly game for 1–6 players, set in a cursed manor deep within the woods. Your objective: Find every anomaly to bring an end to a dark ritual — but here, surviving 8 correct decisions in a row is not the end, only the beginning.
Explore the manor carefully, pay attention to the smallest differences, and decide at the ritual table whether something has changed. After every decision, the house shifts once again: objects throughout the rooms change, anomalies appear, and deadly creatures begin hunting you — or nothing changes at all.

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Discover over 50 unique anomalies as you work to complete the ritual.
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Instead of the standard 8 loops, you will face over 40 before reaching the end.
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After 8 successful decisions, a new room is unlocked, which may contain an anomaly.
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Explore Anomaly Manor with up to 6 friends and find anomalies together.
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Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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