Games like Alien Trap
Games like Alien Trap include Titanfall® 2, Call of Duty®: Black Ops III, Halo Infinite, Battlefield™ 2042, and Call of Duty®. We matched them by the tags players give Alien Trap on Steam (Indie, Action, 3D, FPS, and Robots): closest matches first, and among equally close ones the better-known games.

Titanfall® 2
Shared: FPS · Multiplayer · Action

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

Halo Infinite
Shared: FPS · Action · Multiplayer

Battlefield™ 2042
Shared: FPS · Multiplayer · Action

Call of Duty®
Shared: FPS · Action · Multiplayer

Black Mesa
Shared: Action · FPS · Sci-fi

Apex Legends™
Shared: FPS · Multiplayer · Action

Call of Duty®: Infinite Warfare
Shared: Action · FPS · Multiplayer

FragPunk
Shared: FPS · Action · Multiplayer

Battlefield™ 6
Shared: FPS · Multiplayer · Action

PUBG: BATTLEGROUNDS
Shared: FPS · Multiplayer · Action

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

Battlefield™ 1
Shared: FPS · Multiplayer · Action

Bright Memory: Infinite
Shared: Action · Indie · FPS

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

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

WARDOGS
Shared: FPS · Action · Multiplayer

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Multiplayer · FPS

Marathon
Shared: FPS · Multiplayer · Action

KovaaK's
Shared: Action · Indie · FPS

DOOM
Shared: Action · FPS · Shooter

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

Battlefield 4™
Shared: FPS · Multiplayer · Action

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