Games like Ghostmoons - Arcade
Games like Ghostmoons - Arcade include Arma 3, Arma Reforger, Aimlabs, Ravenfield, and MechWarrior 5: Clans. We matched them by the tags players give Ghostmoons - Arcade on Steam (Simulation, Action, RTS, Sandbox, and Shooter): closest matches first, and among equally close ones the better-known games.

Arma 3
Shared: Action · Simulation · Shooter

Arma Reforger
Shared: Simulation · Shooter · Action

Aimlabs
Shared: Simulation · Action · Shooter

Ravenfield
Shared: Shooter · Action · FPS

MechWarrior 5: Clans
Shared: Simulation · Action · Shooter

KovaaK's
Shared: Action · Simulation · Shooter

Call to Arms
Shared: RTS · Action · Simulation

Crysis 2 Remastered
Shared: Action · Sandbox · Shooter

Hot Dogs, Horseshoes & Hand Grenades
Shared: Sandbox · Simulation · Shooter

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · FPS

Garry's Mod
Shared: Sandbox · Simulation · FPS

Call of Duty®
Shared: Action · Shooter · FPS

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

GoreBox
Shared: Sandbox · Shooter · FPS

Freeman: Guerrilla Warfare
Shared: Action · Shooter · Sandbox

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

BONELAB
Shared: Sandbox · Action · Shooter

Counter-Strike
Shared: Action · Shooter · FPS

Apex Legends™
Shared: Shooter · Action · FPS

Crysis Remastered
Shared: Action · Shooter · FPS

MechWarrior 5: Mercenaries
Shared: Simulation · Action · Shooter

BONEWORKS
Shared: Action · Sandbox · Shooter

Insurgency: Sandstorm
Shared: Shooter · Action · FPS

Crysis 3 Remastered
Shared: Action · Shooter · FPS