Games like APT. 407

Games like APT. 407 include Firewatch, Layers of Fear (2016), What Remains of Edith Finch, No, I'm not a Human, and SOMA. We matched them by the tags players give APT. 407 on Steam (Psychological Horror, Horror, Atmospheric, First-Person, and Walking Simulator): closest matches first, and among equally close ones the better-known games.