Games like Smile Protocol
Games like Smile Protocol include PUBG: BATTLEGROUNDS, Ready or Not, Call of Duty®, Counter-Strike: Source, and BioShock Infinite. We matched them by the tags players give Smile Protocol on Steam (FPS, First-Person, Shooter, Action, and Survival): closest matches first, and among equally close ones the better-known games.

PUBG: BATTLEGROUNDS
Shared: Shooter · FPS · Survival

Ready or Not
Shared: FPS · Shooter · First-Person

Call of Duty®
Shared: FPS · Shooter · Action

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

BioShock Infinite
Shared: First-Person · Shooter · FPS

Black Mesa
Shared: FPS · Action · First-Person

Battlefield™ 2042
Shared: FPS · Shooter · First-Person

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

Left 4 Dead 2
Shared: FPS · Shooter · Action

Apex Legends™
Shared: FPS · Shooter · First-Person

Aimlabs
Shared: FPS · Shooter · First-Person

KovaaK's
Shared: Shooter · FPS · Action

OPERATOR
Shared: Shooter · FPS · Action

Half-Life 2
Shared: FPS · Action · Shooter

Arma 3
Shared: Action · Shooter · First-Person

Road to Vostok
Shared: FPS · Survival · First-Person

METRO Last Light Redux
Shared: FPS · Action · First-Person

Counter-Strike: Condition Zero
Shared: FPS · Action · Shooter

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: FPS · Survival · Shooter

Squad
Shared: FPS · Shooter · First-Person

Ravenfield
Shared: FPS · Shooter · First-Person

Arena Breakout: Infinite
Shared: FPS · Shooter · First-Person

DOOM
Shared: FPS · Shooter · Action

Metro Exodus
Shared: FPS · Action · First-Person