Games like Undertaker
Games like Undertaker include CULTIC, DOOM Eternal, BioShock Infinite, DOOM, and Call of Duty®. We matched them by the tags players give Undertaker on Steam (Action, Shooter, Boomer Shooter, FPS, and 2.5D): closest matches first, and among equally close ones the better-known games.

CULTIC
Shared: Boomer Shooter · Shooter · FPS

DOOM Eternal
Shared: Action · FPS · Shooter

BioShock Infinite
Shared: Action · Shooter · FPS

DOOM
Shared: Action · FPS · Shooter

Call of Duty®
Shared: Shooter · FPS · Action

Warhammer 40,000: Boltgun
Shared: Boomer Shooter · FPS · Shooter

Trepang2
Shared: Shooter · FPS · Action

Selaco
Shared: Shooter · FPS · Action

Turbo Overkill
Shared: Action · Boomer Shooter · FPS

POSTAL: Brain Damaged
Shared: Action · Shooter · Boomer Shooter

Half-Life 2
Shared: Action · FPS · Shooter

HROT
Shared: Boomer Shooter · Shooter · FPS

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

Serious Sam: Siberian Mayhem
Shared: Action · Boomer Shooter · Shooter

Prodeus
Shared: Boomer Shooter · FPS · Action

RoboCop: Rogue City
Shared: Action · FPS · Shooter

Black Mesa
Shared: Action · FPS · Shooter

Forgive Me Father
Shared: Boomer Shooter · Action · FPS

SharpShooter3D
Shared: Boomer Shooter · Action · FPS

Battlefield™ 1
Shared: FPS · Shooter · Action

Wolfenstein: The New Order
Shared: Action · FPS · Shooter

Ready or Not
Shared: Shooter · FPS · Action

The Darkness II
Shared: Action · FPS · Shooter

Insurgency: Sandstorm
Shared: Shooter · FPS · Action