Games like Vermin Protocol
Games like Vermin Protocol include Call of Duty®, BioShock Infinite, Ready or Not, Black Mesa, and Half-Life 2. We matched them by the tags players give Vermin Protocol on Steam (Action, Shooter, FPS, First-Person, and Realistic): closest matches first, and among equally close ones the better-known games.

Call of Duty®
Shared: FPS · Shooter · Action

BioShock Infinite
Shared: Action · Shooter · FPS

Ready or Not
Shared: FPS · Shooter · Realistic

Black Mesa
Shared: Action · FPS · First-Person

Half-Life 2
Shared: Action · FPS · Shooter

Call of Duty®: Modern Warfare® II
Shared: Action · Shooter · FPS

Insurgency: Sandstorm
Shared: FPS · Shooter · Realistic

Battlefield™ 1
Shared: FPS · Shooter · Action

DOOM
Shared: Action · FPS · Shooter

Far Cry® 2
Shared: Action · FPS · Shooter

Hell Let Loose
Shared: Shooter · Realistic · FPS

Arma 3
Shared: Action · Shooter · Realistic

Far Cry 3
Shared: Action · FPS · Shooter

Call of Duty®: Modern Warfare® 2 (2009)
Shared: Action · FPS · Shooter

Far Cry® 4
Shared: Action · FPS · Shooter

Call of Duty®: Modern Warfare® III
Shared: Action · Shooter · FPS

Metro 2033
Shared: Action · FPS · Atmospheric

METRO Last Light Redux
Shared: FPS · Action · Atmospheric

METRO 2033 Redux
Shared: FPS · Action · Atmospheric

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

Battlefield™ 2042
Shared: FPS · Shooter · Action

Counter-Strike: Source
Shared: Shooter · Action · FPS

Insurgency
Shared: FPS · Shooter · Realistic

KovaaK's
Shared: Action · Shooter · FPS