Games like TICKDOWN
Games like TICKDOWN include DOOM Eternal, DOOM, ULTRAKILL, Devil Daggers, and DOOM: The Dark Ages. We matched them by the tags players give TICKDOWN on Steam (Arena Shooter, FPS, Sci-fi, Fantasy, and Fast-Paced): closest matches first, and among equally close ones the better-known games.

DOOM Eternal
Shared: FPS · Fast-Paced · Action

DOOM
Shared: FPS · Action · Fast-Paced

ULTRAKILL
Shared: FPS · Fast-Paced · Arena Shooter

Devil Daggers
Shared: FPS · Difficult · Fast-Paced

DOOM: The Dark Ages
Shared: FPS · Action · Sci-fi

Titanfall® 2
Shared: FPS · Sci-fi · Shooter

BioShock Infinite
Shared: FPS · Action · Shooter

AMID EVIL
Shared: FPS · Arena Shooter · Sci-fi

Half-Life 2
Shared: FPS · Sci-fi · Action

Black Mesa
Shared: FPS · Sci-fi · Action

HYPER DEMON
Shared: FPS · Arena Shooter · Fast-Paced

SUPERHOT
Shared: FPS · Action · Shooter

Turbo Overkill
Shared: FPS · Action · Fast-Paced

Half-Life
Shared: FPS · Sci-fi · Action

Quake III Arena
Shared: Arena Shooter · FPS · Action

Trepang2
Shared: FPS · Shooter · Action

VOID/BREAKER
Shared: FPS · Fast-Paced · Arena Shooter

Immortals of Aveum™
Shared: FPS · Fantasy · Action

Bright Memory: Infinite
Shared: FPS · Action · Sci-fi

Starship Troopers: Extermination
Shared: FPS · Sci-fi · Action

Quake Champions
Shared: Arena Shooter · FPS · Fast-Paced

Quake Live
Shared: Arena Shooter · FPS · Fast-Paced

Post Void
Shared: FPS · Fast-Paced · Difficult

