Games like Terminal Error
Games like Terminal Error include Firework, Poppy Playtime, Lethal Company, Rusty Lake Paradise, and SOMA. We matched them by the tags players give Terminal Error on Steam (Horror, Puzzle, Point & Click, RPG, and 2D): closest matches first, and among equally close ones the better-known games.

Firework
Shared: Horror · Puzzle · 2D

Poppy Playtime
Shared: Horror · Puzzle · First-Person

Lethal Company
Shared: Horror · First-Person · Exploration

Rusty Lake Paradise
Shared: Puzzle · Point & Click · Horror

SOMA
Shared: Horror · Psychological Horror · Exploration

Inside the Backrooms
Shared: Horror · Puzzle · Psychological Horror

Sally Face - Episode One
Shared: Horror · Puzzle · Psychological Horror

Fran Bow
Shared: Point & Click · Puzzle · Horror

The Room Two
Shared: Puzzle · Point & Click · Horror

Endacopia
Shared: Point & Click · Horror · Puzzle

The Room
Shared: Puzzle · Point & Click · Horror

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

The Exit 8
Shared: Puzzle · Horror · Exploration

Amanda the Adventurer
Shared: Horror · Puzzle · First-Person

The Bridge Curse Road to Salvation
Shared: Horror · Puzzle · First-Person

Cube Escape Collection
Shared: Puzzle · Point & Click · Horror

Outer Wilds
Shared: Exploration · Puzzle · Horror

The Room 4: Old Sins
Shared: Puzzle · Point & Click · Horror

OMORI
Shared: Psychological Horror · RPG · Horror

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

Resident Evil 7 Biohazard
Shared: Horror · First-Person · Psychological Horror

Servant of the Lake
Shared: Puzzle · Point & Click · Horror

Detention
Shared: Horror · Puzzle · Psychological Horror

ANIMAL WELL
Shared: Puzzle · Horror · Exploration

