Games like The Hull
Games like The Hull include Left 4 Dead 2, Counter-Strike 2, GTFO, Content Warning, and Dead by Daylight. We matched them by the tags players give The Hull on Steam (Action Roguelike, Action, FPS, Procedural Generation, and Difficult): closest matches first, and among equally close ones the better-known games.

Left 4 Dead 2
Shared: Co-op · FPS · Action

Counter-Strike 2
Shared: FPS · Action · Multiplayer

GTFO
Shared: Co-op · FPS · Horror

Content Warning
Shared: Action Roguelike · Procedural Generation · Horror

Dead by Daylight
Shared: Horror · Co-op · Survival Horror

PAYDAY 2
Shared: Action · Co-op · FPS

PEAK
Shared: Co-op · Online Co-Op · Multiplayer

Lethal Company
Shared: Co-op · Horror · Online Co-Op

R.E.P.O.
Shared: Co-op · Horror · Online Co-Op

Escape the Backrooms
Shared: Co-op · Horror · Online Co-Op

Left 4 Dead
Shared: Co-op · Action · FPS

Dying Light
Shared: Horror · Survival Horror · Online Co-Op

Killing Floor
Shared: FPS · Co-op · Action

Lunch Lady
Shared: Co-op · Horror · Online Co-Op

Gunfire Reborn
Shared: FPS · Co-op · Action

Risk of Rain 2
Shared: Action Roguelike · Co-op · Action

Back 4 Blood
Shared: FPS · Co-op · Action

PUBG: BATTLEGROUNDS
Shared: FPS · Action · Co-op

Starship Troopers: Extermination
Shared: Action · FPS · Co-op

Pacify
Shared: Co-op · Horror · Online Co-Op

Ready or Not
Shared: FPS · Co-op · Action

The Outlast Trials
Shared: Co-op · Horror · Action

No More Room in Hell 2
Shared: Co-op · Action · Online Co-Op

Deep Rock Galactic
Shared: Co-op · FPS · Procedural Generation