Games like E.T. Armies
Games like E.T. Armies include Counter-Strike 2, Titanfall® 2, Call of Duty®, Halo Infinite, and Call of Duty®: Black Ops III. We matched them by the tags players give E.T. Armies on Steam (Action, FPS, Multiplayer, Sci-fi, and Indie): closest matches first, and among equally close ones the better-known games.

Counter-Strike 2
Shared: FPS · Multiplayer · Action

Titanfall® 2
Shared: FPS · Multiplayer · Action

Call of Duty®
Shared: FPS · Multiplayer · Action

Halo Infinite
Shared: FPS · Multiplayer · Action

Call of Duty®: Black Ops III
Shared: Multiplayer · FPS · Action

Black Mesa
Shared: FPS · Action · Sci-fi

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

Half-Life
Shared: FPS · Sci-fi · Multiplayer

Apex Legends™
Shared: Multiplayer · FPS · Action

Battlefield™ 2042
Shared: FPS · Multiplayer · Action

DOOM
Shared: FPS · Action · Multiplayer

STAR WARS™ Battlefront™ II
Shared: Multiplayer · Action · Singleplayer

Battlefield™ 1
Shared: FPS · Multiplayer · Action

Ready or Not
Shared: FPS · Multiplayer · Singleplayer

Halo: The Master Chief Collection
Shared: FPS · Multiplayer · Sci-fi

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Multiplayer · Sci-fi

KovaaK's
Shared: Action · FPS · Indie

Bright Memory: Infinite
Shared: Action · FPS · Indie

BioShock Infinite
Shared: Action · FPS · First-Person

DOOM Eternal
Shared: FPS · Action · Multiplayer

Battlefield™ V
Shared: FPS · Multiplayer · Singleplayer

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

Battlefield™ 6
Shared: FPS · Multiplayer · Action

Battlefield 4™
Shared: FPS · Multiplayer · Action