Games like Creepy Fishing
Games like Creepy Fishing include Mouthwashing, Outlast, Layers of Fear (2016), SOMA, and MiSide. We matched them by the tags players give Creepy Fishing on Steam (Idler, RPG, Horror, Psychological Horror, and Dark): closest matches first, and among equally close ones the better-known games.

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

Outlast
Shared: Horror · Psychological Horror · Atmospheric

Layers of Fear (2016)
Shared: Horror · Psychological Horror · Atmospheric

SOMA
Shared: Horror · Psychological Horror · Atmospheric

MiSide
Shared: Psychological Horror · Horror · Atmospheric

Garten of Banban
Shared: Horror · Psychological Horror · First-Person

No, I'm not a Human
Shared: Horror · Psychological Horror · Atmospheric

From The Darkness
Shared: Horror · Psychological Horror · Dark

Poppy Playtime
Shared: Horror · Dark · Psychological Horror

Outlast 2
Shared: Horror · Psychological Horror · Dark

Buckshot Roulette
Shared: Horror · Dark · First-Person

Visage
Shared: Horror · Psychological Horror · Dark

Still Wakes the Deep
Shared: Horror · Psychological Horror · Walking Simulator

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

Slender: The Arrival
Shared: Horror · Dark · Psychological Horror

Phasmophobia
Shared: Horror · Psychological Horror · Dark

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

Summer of '58
Shared: Horror · Psychological Horror · Atmospheric

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

Blair Witch
Shared: Horror · Psychological Horror · Dark

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

Little Nightmares
Shared: Horror · Atmospheric · Dark

Welcome to Kowloon
Shared: Horror · Psychological Horror · Atmospheric

Bad Parenting 1: Mr. Red Face
Shared: Horror · Psychological Horror · Walking Simulator