Games like Entropic Decay
Games like Entropic Decay include DOOM Eternal, Trepang2, DOOM, Resident Evil Village, and ULTRAKILL. We matched them by the tags players give Entropic Decay on Steam (FPS, Gore, Horror, Boomer Shooter, and Bullet Time): closest matches first, and among equally close ones the better-known games.

DOOM Eternal
Shared: FPS · Gore · Action

Trepang2
Shared: FPS · Horror · Gore

DOOM
Shared: FPS · Gore · Action

Resident Evil Village
Shared: Horror · Gore · Action

ULTRAKILL
Shared: Gore · FPS · Boomer Shooter

F.E.A.R.
Shared: FPS · Horror · Bullet Time

DUSK
Shared: FPS · Boomer Shooter · Horror

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

Left 4 Dead 2
Shared: FPS · Horror · Action

CULTIC
Shared: FPS · Boomer Shooter · Horror

METRO 2033 Redux
Shared: FPS · Horror · Action

F.E.A.R. 2: Project Origin
Shared: FPS · Horror · Gore

Metro Exodus
Shared: FPS · Horror · Action

Ready or Not
Shared: FPS · Horror · Action

Killing Floor 2
Shared: Gore · FPS · Horror

Outlast 2
Shared: Horror · Gore · First-Person

Killing Floor
Shared: FPS · Horror · Action

Resident Evil Requiem
Shared: Horror · FPS · Action

DOOM 64
Shared: FPS · Action · Gore

Prodeus
Shared: FPS · Boomer Shooter · Gore

DOOM 3
Shared: FPS · Horror · Action

Wolfenstein II: The New Colossus
Shared: FPS · Gore · Action

Outlast
Shared: Horror · Gore · First-Person

SUPERHOT
Shared: FPS · Action · Bullet Time