Games like Galaxy Arena
Games like Galaxy Arena include PUBG: BATTLEGROUNDS, Arma 3, Counter-Strike 2, Ready or Not, and Left 4 Dead 2. We matched them by the tags players give Galaxy Arena on Steam (3D Fighter, Horror, Action, Shooter, and Shoot 'Em Up): closest matches first, and among equally close ones the better-known games.

PUBG: BATTLEGROUNDS
Shared: Shooter · Survival · Action

Arma 3
Shared: Action · Shooter · Simulation

Counter-Strike 2
Shared: Shooter · Action · Tactical

Ready or Not
Shared: Shooter · Horror · Action

Left 4 Dead 2
Shared: Shooter · Action · Horror

20 Minutes Till Dawn
Shared: Survival · Horror · Shoot 'Em Up

- Kinki Spiritual Affairs Bureau
Shared: Horror · 3D Fighter · Action

OPERATOR
Shared: Shooter · Action · Simulation

The Forest
Shared: Horror · Survival · Action

Arma Reforger
Shared: Shooter · Action · Simulation

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

Bodycam
Shared: Shooter · Horror · Tactical

Dead Space™ 2
Shared: Horror · Shooter · Action

Call to Arms
Shared: Action · Shooter · Simulation

Hell Let Loose
Shared: Shooter · Action · War

Ravenfield
Shared: Shooter · Action · War

DayZ
Shared: Survival · Shooter · Horror

Arma 2: Operation Arrowhead
Shared: Action · Simulation · Shooter

KovaaK's
Shared: Action · Shooter · Simulation

Insurgency
Shared: Shooter · Action · Tactical

Hell Let Loose: Vietnam
Shared: Action · Shooter · Simulation

Left 4 Dead
Shared: Action · Horror · Shooter

GROUND BRANCH
Shared: Shooter · Action · Simulation

Gray Zone Warfare
Shared: Simulation · Shooter · Action