Games like Hunt: Showdown 1896 - The Rat
Games like Hunt: Showdown 1896 - The Rat include Left 4 Dead 2, DOOM Eternal, Wolfenstein: Youngblood, Back 4 Blood, and Resident Evil 3. We matched them by the tags players give Hunt: Showdown 1896 - The Rat on Steam (Action, Gore, Violent, Female Protagonist, and Western): closest matches first, and among equally close ones the better-known games.

Left 4 Dead 2
Shared: Zombies · Action · FPS

DOOM Eternal
Shared: Gore · Action · Violent

Wolfenstein: Youngblood
Shared: Action · Female Protagonist · Violent

Back 4 Blood
Shared: Gore · Zombies · Action

Resident Evil 3
Shared: Action · Female Protagonist · Zombies

Killing Floor
Shared: Zombies · Action · FPS

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

Call of Duty®
Shared: Action · FPS · Shooter

Killing Floor 2
Shared: Gore · Zombies · FPS

Pavlov
Shared: Action · Gore · FPS

Serious Sam 4
Shared: Action · Gore · Violent

Call of Duty®: WWII
Shared: Action · FPS · Zombies

DOOM
Shared: Gore · Action · FPS

Bright Memory: Infinite
Shared: Action · Female Protagonist · FPS

Call of Duty®: Black Ops 7
Shared: Action · FPS · Violent

Insurgency: Sandstorm
Shared: Action · FPS · Shooter

Gears 5
Shared: Action · Gore · Co-op

Wolfenstein II: The New Colossus
Shared: Action · Gore · FPS

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

PUBG: BATTLEGROUNDS
Shared: Action · FPS · Shooter

Serious Sam Fusion 2017 (beta)
Shared: Action · Gore · Violent

Call of Duty®: Warzone™
Shared: Action · FPS · Violent

Serious Sam 3: BFE
Shared: Action · Gore · FPS

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