Games like Dead Rush
Games like Dead Rush include Left 4 Dead 2, PUBG: BATTLEGROUNDS, Back 4 Blood, Killing Floor 2, and DayZ. We matched them by the tags players give Dead Rush on Steam (Action, FPS, Zombies, Shooter, and Survival): closest matches first, and among equally close ones the better-known games.

Left 4 Dead 2
Shared: Zombies · FPS · Action

PUBG: BATTLEGROUNDS
Shared: Shooter · Survival · FPS

Back 4 Blood
Shared: Zombies · FPS · Action

Killing Floor 2
Shared: Zombies · FPS · Shooter

DayZ
Shared: Zombies · Survival · Shooter

Killing Floor
Shared: FPS · Zombies · Action

Left 4 Dead
Shared: Zombies · FPS · Action

Call of Duty®: Black Ops III
Shared: FPS · Zombies · Action

Dying Light
Shared: Zombies · Survival · Action

Call of Duty: World at War
Shared: Zombies · FPS · Action

Call of Duty®
Shared: FPS · Action · Shooter

DOOM
Shared: FPS · Action · Shooter

Call of Duty®: Black Ops
Shared: Action · FPS · Zombies

No More Room in Hell 2
Shared: Zombies · Action · FPS

Killing Floor 3
Shared: FPS · Zombies · Shooter

Black Mesa
Shared: FPS · Action · Shooter

World War Z
Shared: Zombies · Action · Shooter

Starship Troopers: Extermination
Shared: Action · FPS · First-Person

Call of Duty®: Modern Warfare® 3 (2011)
Shared: Action · FPS · Shooter

Half-Life 2
Shared: Action · FPS · Shooter

Pavlov
Shared: Action · Shooter · FPS

DOOM Eternal
Shared: FPS · Action · Shooter

Call of Duty®: Black Ops Cold War
Shared: FPS · Action · Zombies

John Carpenter's Toxic Commando
Shared: Zombies · FPS · Shooter