Games like Bloom
Games like Bloom include Hotline Miami, DOOM Eternal, Trepang2, Maximum Action, and Hotline Miami 2: Wrong Number. We matched them by the tags players give Bloom on Steam (Action, Indie, Gore, Violent, and FPS): closest matches first, and among equally close ones the better-known games.

Hotline Miami
Shared: Action · Indie · Violent

DOOM Eternal
Shared: Action · Gore · FPS

Trepang2
Shared: Gore · FPS · Action

Maximum Action
Shared: Action · Gore · Violent

Hotline Miami 2: Wrong Number
Shared: Gore · Action · Violent

Prodeus
Shared: Action · Gore · FPS

CARRION
Shared: Gore · Action · Indie

DOOM
Shared: Action · Gore · FPS

Nightmare of Decay
Shared: Action · Horror · FPS

HROT
Shared: FPS · Indie · Action

DOOM 64
Shared: Action · FPS · Gore

Bright Memory: Infinite
Shared: Action · Indie · FPS

Serious Sam Fusion 2017 (beta)
Shared: Action · Gore · Indie

Ready or Not
Shared: FPS · Action · Horror

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

Turbo Overkill
Shared: Action · FPS · Indie

Blood and Bacon
Shared: Gore · Action · FPS

Serious Sam 4
Shared: Action · Gore · FPS

CULTIC
Shared: Action · FPS · Gore

DUSK
Shared: FPS · Retro · Gore

My Friend Pedro
Shared: Action · Indie · Gore

Killing Floor
Shared: FPS · Action · Horror

Resident Evil Village
Shared: Action · Horror · Gore

Paint the Town Red
Shared: Action · Gore · Violent