Games like Decodence
Games like Decodence include Counter-Strike 2, PUBG: BATTLEGROUNDS, Tom Clancy's Rainbow Six Siege, THE FINALS, and BattleBit Remastered. We matched them by the tags players give Decodence on Steam (Arena Shooter, Action, FPS, Shooter, and 3D): closest matches first, and among equally close ones the better-known games.

Counter-Strike 2
Shared: FPS · Action · Shooter

PUBG: BATTLEGROUNDS
Shared: Shooter · FPS · PvP

Tom Clancy's Rainbow Six Siege
Shared: FPS · PvP · Shooter

THE FINALS
Shared: FPS · Shooter · PvP

BattleBit Remastered
Shared: FPS · Shooter · Action

WARDOGS
Shared: FPS · Action · PvP

Apex Legends™
Shared: FPS · Shooter · Action

Call of Duty®
Shared: FPS · Action · Shooter

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

Pixel Gun 3D: PC Edition
Shared: PvP · FPS · Action

Squad
Shared: FPS · PvP · Action

Fistful of Frags
Shared: Arena Shooter · PvP · FPS

Counter-Strike
Shared: Action · FPS · Shooter

Insurgency: Sandstorm
Shared: FPS · Shooter · Action

Battlefield™ 1
Shared: FPS · Action · Shooter

Bodycam
Shared: FPS · Shooter · Tactical

Battlefield™ 2042
Shared: FPS · Shooter · Action

Battlefield™ V
Shared: FPS · Shooter · PvP

Ready or Not
Shared: FPS · Shooter · Tactical

Verdun
Shared: Shooter · PvP · FPS

Arma 3
Shared: Action · Shooter · FPS

Black Mesa
Shared: FPS · Action · Shooter

Paladins®
Shared: FPS · Action · Shooter

Enlisted
Shared: Action · FPS · Shooter