Games like ID-EGO
Games like ID-EGO include DOOM Eternal, Bright Memory: Infinite, Hotline Miami, Wolfenstein II: The New Colossus, and DOOM. We matched them by the tags players give ID-EGO on Steam (Action, Indie, Gore, Violent, and Sci-fi): closest matches first, and among equally close ones the better-known games.

DOOM Eternal
Shared: Action · Gore · FPS

Bright Memory: Infinite
Shared: Action · Indie · FPS

Hotline Miami
Shared: Action · Indie · Violent

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

DOOM
Shared: Action · Gore · FPS

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

Bulletstorm: Full Clip Edition
Shared: Action · Gore · Violent

My Friend Pedro
Shared: Action · Indie · Gore

CARRION
Shared: Gore · Action · Indie

Serious Sam 4
Shared: Action · Gore · FPS

Paint the Town Red
Shared: Action · Gore · Violent

Maximum Action
Shared: Action · Gore · Violent

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

RoboCop: Rogue City
Shared: Action · FPS · Gore

Chivalry: Medieval Warfare
Shared: Action · Gore · Violent

Trepang2
Shared: Gore · Action · FPS

Prodeus
Shared: Action · Gore · FPS

SUPERHOT
Shared: Action · Indie · FPS

Wolfenstein: Youngblood
Shared: Action · FPS · Violent

DOOM: The Dark Ages
Shared: Action · FPS · Gore

Black Mesa
Shared: Action · FPS · Sci-fi

RUINER
Shared: Action · Indie · Violent

Hard Reset Extended Edition
Shared: Action · FPS · Indie

Angels Fall First
Shared: Action · Indie · FPS

