Games like The Last Cowboy
Games like The Last Cowboy include Left 4 Dead 2, Resident Evil Village, Resident Evil 2, Resident Evil 4, and Resident Evil 7 Biohazard. We matched them by the tags players give The Last Cowboy on Steam (Indie, Action, Zombies, FPS, and Horror): closest matches first, and among equally close ones the better-known games.

Left 4 Dead 2
Shared: Zombies · FPS · Action

Resident Evil Village
Shared: Action · Horror · Survival Horror

Resident Evil 2
Shared: Zombies · Horror · Survival Horror

Resident Evil 4
Shared: Action · Horror · Zombies

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

Outlast
Shared: Horror · Survival Horror · Atmospheric

Dying Light
Shared: Zombies · Horror · Survival Horror

Resident Evil Requiem
Shared: Zombies · Action · Horror

Killing Floor
Shared: Zombies · FPS · Action

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

Back 4 Blood
Shared: Zombies · FPS · Action

METRO 2033 Redux
Shared: FPS · Action · Horror

Metro Exodus
Shared: FPS · Action · Horror

Resident Evil 3
Shared: Action · Zombies · Horror

METRO Last Light Redux
Shared: Action · FPS · Horror

Ultimate Custom Night
Shared: Horror · Survival Horror · Difficult

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

Left 4 Dead
Shared: Zombies · Action · FPS

Dead Effect
Shared: Zombies · Action · FPS

The Forest
Shared: Horror · Survival · Action

Outlast 2
Shared: Horror · Survival Horror · Singleplayer

DOOM
Shared: Action · FPS · Gore

Killing Floor 2
Shared: Zombies · FPS · Action

Daymare: 1998
Shared: Zombies · Action · Indie