Games like Arma 3 Contact
Games like Arma 3 Contact include Arma 3, Arma Reforger, Hell Let Loose: Vietnam, Arma 2: Operation Arrowhead, and Aliens vs. Predator™. We matched them by the tags players give Arma 3 Contact on Steam (Simulation, Strategy, Action, Military, and Aliens): closest matches first, and among equally close ones the better-known games.

Arma 3
Shared: Action · Military · Simulation

Arma Reforger
Shared: Simulation · Military · Action

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

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

Aliens vs. Predator™
Shared: Action · Aliens · FPS

Call to Arms
Shared: Strategy · Military · Action

Bodycam
Shared: FPS · Military · Simulation

WARDOGS
Shared: Military · Action · FPS

Squad 44
Shared: Simulation · Military · FPS

Black Mesa
Shared: Action · FPS · Sci-fi

Half-Life: Opposing Force
Shared: Action · FPS · Sci-fi

Half-Life 2
Shared: Action · FPS · Sci-fi

Men of War: Assault Squad 2
Shared: Strategy · Simulation · Action

Halo Wars: Definitive Edition
Shared: Strategy · Sci-fi · Military

ARMA: Cold War Assault Remastered
Shared: Simulation · Action · Strategy

Aliens: Dark Descent
Shared: Strategy · Action · Sci-fi

Natural Selection 2
Shared: Strategy · Action · FPS

Ravenfield
Shared: FPS · Military · Action

Aliens: Colonial Marines Collection
Shared: Action · Aliens · FPS

Insurgency
Shared: FPS · Action · Military

Squad
Shared: Military · FPS · Action

Stellaris
Shared: Strategy · Simulation · Sci-fi

Gray Zone Warfare
Shared: Simulation · FPS · Military

War Thunder
Shared: Simulation · Action · Military