Games like Astralis
Games like Astralis include Half-Life 2, Black Mesa, BioShock Infinite, Titanfall® 2, and Halo Infinite. We matched them by the tags players give Astralis on Steam (Action, FPS, Sci-fi, Singleplayer, and First-Person): closest matches first, and among equally close ones the better-known games.

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

Black Mesa
Shared: FPS · Action · Sci-fi

BioShock Infinite
Shared: Action · FPS · First-Person

Titanfall® 2
Shared: FPS · Action · Singleplayer

Halo Infinite
Shared: FPS · Action · Singleplayer

Call of Duty®
Shared: FPS · Action · Singleplayer

Counter-Strike 2
Shared: FPS · Action · Shooter

DOOM
Shared: FPS · Action · Shooter

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

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

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

RoboCop: Rogue City
Shared: Action · FPS · Singleplayer

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

DOOM Eternal
Shared: FPS · Action · Shooter

Battlefield™ 2042
Shared: FPS · Action · Singleplayer

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

DOOM: The Dark Ages
Shared: Action · FPS · Singleplayer

Wolfenstein: The New Order
Shared: Action · FPS · Singleplayer

STAR WARS™ Republic Commando™
Shared: Action · FPS · Sci-fi

Apex Legends™
Shared: FPS · Action · First-Person

Bright Memory: Infinite
Shared: Action · FPS · Singleplayer

Battlefield™ 1
Shared: FPS · Singleplayer · Action

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

Half-Life: Alyx
Shared: FPS · Action · Singleplayer