Games like Polluted Flesh
Games like Polluted Flesh include Subnautica, Dark Deception, Poppy Playtime, Ultimate Custom Night, and Subnautica: Below Zero. We matched them by the tags players give Polluted Flesh on Steam (Underwater, Horror, Action, Stylized, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Subnautica
Shared: Horror · Underwater · Survival

Dark Deception
Shared: Horror · Singleplayer · First-Person

Poppy Playtime
Shared: Horror · Singleplayer · First-Person

Ultimate Custom Night
Shared: Horror · Singleplayer · Free to Play

Subnautica: Below Zero
Shared: Underwater · Horror · Singleplayer

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · First-Person

Subnautica 2
Shared: Horror · Underwater · Survival

The Forest
Shared: Horror · Survival · Action

Resident Evil Village
Shared: Horror · Action · Singleplayer

Resident Evil 4
Shared: Horror · Action · Singleplayer

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

Outlast
Shared: Horror · First-Person · Singleplayer

Bendy and the Dark Revival
Shared: Horror · Action · Singleplayer

Resident Evil Requiem
Shared: Horror · Action · Singleplayer

BioShock™ Remastered
Shared: Horror · Singleplayer · Action

Metro Exodus
Shared: Singleplayer · Action · Horror

METRO Last Light Redux
Shared: Action · Horror · Singleplayer

METRO 2033 Redux
Shared: Horror · Action · Singleplayer

R.E.P.O.
Shared: Horror · First-Person · Survival

Halo Infinite
Shared: Singleplayer · Action · Free to Play

BioShock® 2
Shared: Action · Singleplayer · Horror

Outlast 2
Shared: Horror · Singleplayer · First-Person

FIVE NIGHTS AT FREDDY'S: HELP WANTED
Shared: Horror · Singleplayer · Action

BioShock™ 2 Remastered
Shared: Action · Singleplayer · Horror