Games like Sewer
Games like Sewer include Resident Evil 4, Resident Evil Requiem, Resident Evil Village, Resident Evil 2, and Resident Evil 3. We matched them by the tags players give Sewer on Steam (Action, Zombies, Adventure, Horror, and FPS): closest matches first, and among equally close ones the better-known games.

Resident Evil 4
Shared: Action · Horror · Zombies

Resident Evil Requiem
Shared: Zombies · Action · Horror

Resident Evil Village
Shared: Horror · Action · Survival Horror

Resident Evil 2
Shared: Zombies · Horror · Survival Horror

Resident Evil 3
Shared: Action · Zombies · Horror

Dying Light
Shared: Zombies · Horror · Survival Horror

Left 4 Dead 2
Shared: Zombies · FPS · Action

Black Mesa
Shared: Action · FPS · Singleplayer

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · Zombies

Half-Life 2
Shared: Action · FPS · Singleplayer

METRO 2033 Redux
Shared: FPS · Action · Horror

Resident Evil 4 (2005)
Shared: Action · Zombies · Survival Horror

Resident Evil 0
Shared: Zombies · Horror · Adventure

Metro Exodus
Shared: FPS · Action · Singleplayer

METRO Last Light Redux
Shared: Action · FPS · Horror

Half-Life: Alyx
Shared: FPS · Horror · Action

Bendy and the Dark Revival
Shared: Action · Horror · Adventure

The Last of Us™ Part I
Shared: Zombies · Horror · Story Rich

The Evil Within 2
Shared: Horror · Action · Survival Horror

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

Ready or Not
Shared: FPS · Horror · Singleplayer

Resident Evil Revelations 2
Shared: Zombies · Horror · Action

Outlast
Shared: Horror · Survival Horror · Singleplayer

Back 4 Blood
Shared: Zombies · FPS · Action