Games like Delusional Mind
Games like Delusional Mind include Ready or Not, VLADiK BRUTAL, Half-Life 2, Inside the Backrooms, and BioShock Infinite. We matched them by the tags players give Delusional Mind on Steam (Action, Psychological Horror, Puzzle, FPS, and Shooter): closest matches first, and among equally close ones the better-known games.

Ready or Not
Shared: FPS · Shooter · Psychological Horror

VLADiK BRUTAL
Shared: Action · FPS · Shooter

Half-Life 2
Shared: Action · FPS · Shooter

Inside the Backrooms
Shared: Puzzle · Psychological Horror · Survival Horror

BioShock Infinite
Shared: Action · Shooter · FPS

Atomic Heart
Shared: Action · FPS · Adventure

BONEWORKS
Shared: Action · Shooter · Puzzle

Far Cry® 6
Shared: FPS · Action · Shooter

Call of Duty®
Shared: FPS · Action · Shooter

Tomb Raider Game of the Year
Shared: Action · Adventure · Exploration

Rise of the Tomb Raider™
Shared: Action · Adventure · Exploration

Resident Evil Requiem
Shared: Action · FPS · Survival Horror

Darkwood
Shared: Psychological Horror · Action · Adventure

Far Cry 3
Shared: Action · FPS · Shooter

Metro Exodus
Shared: FPS · Action · Shooter

Fallout 4
Shared: Exploration · Adventure · Shooter

Far Cry® 5
Shared: FPS · Shooter · Exploration

Far Cry® 2
Shared: Action · FPS · Shooter

Far Cry® 4
Shared: Action · FPS · Shooter

Escape the Backrooms
Shared: Psychological Horror · Exploration · Survival Horror

Escape from Tarkov
Shared: Psychological Horror · FPS · Shooter

Red Dead Redemption 2
Shared: Action · Adventure · Shooter

PUBG: BATTLEGROUNDS
Shared: Shooter · FPS · Action

SOMA
Shared: Psychological Horror · Exploration · Survival Horror