Games like Hunkenstein
Games like Hunkenstein include BioShock Infinite, Aimlabs, Ready or Not, Half-Life 2, and PUBG: BATTLEGROUNDS. We matched them by the tags players give Hunkenstein on Steam (Action, Adventure, Action RPG, Shooter, and FPS): closest matches first, and among equally close ones the better-known games.

BioShock Infinite
Shared: Action · Shooter · FPS

Aimlabs
Shared: Action · FPS · Shooter

Ready or Not
Shared: Shooter · FPS · Action

Half-Life 2
Shared: Action · FPS · Shooter

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · FPS

VLADiK BRUTAL
Shared: Action · Shooter · FPS

Far Cry 3
Shared: Action · Adventure · FPS

Black Mesa
Shared: Action · FPS · Shooter

S.T.A.L.K.E.R.: Shadow of Chornobyl - Enhanced Edition
Shared: Action · Adventure · Shooter

Call of Duty®
Shared: Action · FPS · Shooter

Apex Legends™
Shared: Shooter · FPS · Action

Far Cry® 2
Shared: Action · FPS · Shooter

Arma 3
Shared: Action · Shooter · FPS

Far Cry® 4
Shared: Action · FPS · Adventure

Resident Evil Requiem
Shared: Action · FPS · First-Person

Insurgency: Sandstorm
Shared: FPS · Shooter · Action

DEATHLOOP
Shared: Action · FPS · Shooter

Borderlands 2
Shared: Action · Shooter · FPS

Bodycam
Shared: FPS · Shooter · Realistic

Wolfenstein: The New Order
Shared: Action · FPS · Shooter

KovaaK's
Shared: Action · Shooter · FPS

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

METRO Last Light Redux
Shared: Action · FPS · Shooter

MechWarrior 5: Clans
Shared: Action · Shooter · FPS