Games like Shadow of Ether
Games like Shadow of Ether include Sally Face - Episode One, Poppy Playtime, Phasmophobia, SOMA, and Inside the Backrooms. We matched them by the tags players give Shadow of Ether on Steam (Supernatural, Psychological Horror, Philosophical, Faith, and Survival Horror): closest matches first, and among equally close ones the better-known games.

Sally Face - Episode One
Shared: Psychological Horror · Story Rich · Mystery

Poppy Playtime
Shared: Psychological Horror · Survival Horror · Puzzle

Phasmophobia
Shared: Psychological Horror · Supernatural · Horror

SOMA
Shared: Psychological Horror · Survival Horror · Horror

Inside the Backrooms
Shared: Psychological Horror · Survival Horror · Puzzle

Bendy and the Ink Machine
Shared: Survival Horror · Puzzle · Horror

Pacify
Shared: Psychological Horror · Supernatural · Survival Horror

Garten of Banban
Shared: Psychological Horror · Horror · Puzzle

Amnesia: The Dark Descent
Shared: Psychological Horror · Survival Horror · Horror

Outlast
Shared: Psychological Horror · Survival Horror · Horror

MiSide
Shared: Psychological Horror · Story Rich · Horror

Outlast 2
Shared: Psychological Horror · Survival Horror · Horror

Fran Bow
Shared: Psychological Horror · Puzzle · Story Rich

Dread Flats
Shared: Psychological Horror · Supernatural · Mystery

Five Nights at Freddy's
Shared: Psychological Horror · Survival Horror · Horror

Firework
Shared: Psychological Horror · Mystery · Puzzle

Garten of Banban 2
Shared: Psychological Horror · Puzzle · Horror

Five Nights at Freddy's 2
Shared: Psychological Horror · Survival Horror · Horror

What Remains of Edith Finch
Shared: Mystery · Story Rich · Psychological Horror

Little Nightmares II
Shared: Psychological Horror · Puzzle · Horror

Little Nightmares
Shared: Horror · Psychological Horror · Puzzle

Escape the Backrooms
Shared: Psychological Horror · Survival Horror · Horror

Layers of Fear (2016)
Shared: Psychological Horror · Horror · Story Rich

Mouthwashing
Shared: Psychological Horror · Story Rich · Horror