Games like Gloomwood
Games like Gloomwood include Amnesia: The Bunker, Dishonored, METRO 2033 Redux, Metro Exodus, and Prey. We matched them by the tags players give Gloomwood on Steam (Immersive Sim, Stealth, Survival Horror, FPS, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Amnesia: The Bunker
Shared: Survival Horror · Immersive Sim · Stealth

Dishonored
Shared: Stealth · First-Person · Atmospheric

METRO 2033 Redux
Shared: FPS · Atmospheric · Stealth

Metro Exodus
Shared: FPS · Atmospheric · Singleplayer

Prey
Shared: Immersive Sim · Atmospheric · FPS

METRO Last Light Redux
Shared: FPS · Atmospheric · Stealth

DEATHLOOP
Shared: Stealth · Immersive Sim · FPS

Dishonored 2
Shared: Stealth · First-Person · Atmospheric

Outlast
Shared: Survival Horror · First-Person · Atmospheric

Project Silverfish
Shared: Immersive Sim · FPS · Exploration

Blood West
Shared: FPS · Stealth · Immersive Sim

BioShock Infinite
Shared: FPS · First-Person · Singleplayer

BioShock™ Remastered
Shared: FPS · Atmospheric · First-Person

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: FPS · Atmospheric · Singleplayer

Five Nights at Freddy's: Security Breach
Shared: Survival Horror · Stealth · Singleplayer

Species: Unknown
Shared: Atmospheric · Survival Horror · First-Person

Fallout 4
Shared: Exploration · Singleplayer · Atmospheric

Far Cry® 2
Shared: FPS · First-Person · Singleplayer

Resident Evil Village
Shared: Survival Horror · First-Person · Singleplayer

Deus Ex: Mankind Divided
Shared: Stealth · Immersive Sim · Atmospheric

Black Mesa
Shared: FPS · First-Person · Atmospheric

BioShock™
Shared: FPS · Atmospheric · Singleplayer

Call of Duty®
Shared: FPS · Singleplayer · First-Person

Far Cry® 4
Shared: FPS · Stealth · First-Person