Games like 9 Hallways: The Anomaly Agent

Games like 9 Hallways: The Anomaly Agent include Outlast, Layers of Fear (2016), Firewatch, SOMA, and What Remains of Edith Finch. We matched them by the tags players give 9 Hallways: The Anomaly Agent on Steam (Horror, Psychological Horror, Atmospheric, Adventure, and Walking Simulator): closest matches first, and among equally close ones the better-known games.