Games like Everloop
Games like Everloop include The Exit 8, Poppy Playtime, Layers of Fear (2016), Garten of Banban, and What Remains of Edith Finch. We matched them by the tags players give Everloop on Steam (Psychological Horror, Walking Simulator, Horror, Puzzle, and Singleplayer): closest matches first, and among equally close ones the better-known games.

The Exit 8
Shared: Walking Simulator · Puzzle · Horror

Poppy Playtime
Shared: Horror · Singleplayer · Puzzle

Layers of Fear (2016)
Shared: Psychological Horror · Horror · Walking Simulator

Garten of Banban
Shared: Horror · Psychological Horror · Singleplayer

What Remains of Edith Finch
Shared: Walking Simulator · Exploration · Singleplayer

SOMA
Shared: Psychological Horror · Horror · Exploration

Firewatch
Shared: Walking Simulator · Singleplayer · Exploration

MiSide
Shared: Psychological Horror · Horror · Singleplayer

Amnesia: A Machine For Pigs
Shared: Walking Simulator · Horror · Psychological Horror

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

Scanner Sombre
Shared: Walking Simulator · Horror · Exploration

Mouthwashing
Shared: Psychological Horror · Horror · Walking Simulator

POOLS
Shared: Psychological Horror · Walking Simulator · Exploration

INFRA
Shared: Puzzle · Walking Simulator · Exploration

The Death | Thần Trùng
Shared: Psychological Horror · Horror · Puzzle

Inside the Backrooms
Shared: Horror · Psychological Horror · Puzzle

Escape the Backrooms
Shared: Horror · Psychological Horror · Exploration

Outer Wilds
Shared: Exploration · Puzzle · Singleplayer

Backrooms: Escape Together
Shared: Horror · Psychological Horror · First-Person

Subliminal
Shared: Psychological Horror · Singleplayer · Horror

Outlast
Shared: Horror · Psychological Horror · First-Person

Platform 8
Shared: Psychological Horror · Walking Simulator · Puzzle

Garten of Banban 3
Shared: Horror · Psychological Horror · Singleplayer

Psalm 5:9-13
Shared: Psychological Horror · Horror · Walking Simulator