Games like The God's Chain
Games like The God's Chain include PUBG: BATTLEGROUNDS, HELLDIVERS™ 2, STAR WARS™ Battlefront™ II, Starship Troopers: Extermination, and STAR WARS™ Battlefront II (Classic, 2005). We matched them by the tags players give The God's Chain on Steam (Action, Third-Person Shooter, FPS, Multiplayer, and Aliens): closest matches first, and among equally close ones the better-known games.

PUBG: BATTLEGROUNDS
Shared: Multiplayer · FPS · Third-Person Shooter

HELLDIVERS™ 2
Shared: Third-Person Shooter · Action · Multiplayer

STAR WARS™ Battlefront™ II
Shared: Multiplayer · Third-Person Shooter · Action

Starship Troopers: Extermination
Shared: Action · FPS · Sci-fi

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Multiplayer · Third-Person Shooter

Call of Duty®
Shared: FPS · Multiplayer · Action

ORION: Prelude
Shared: Action · FPS · Multiplayer

Left 4 Dead 2
Shared: FPS · Multiplayer · Action

Half-Life
Shared: FPS · Action · Multiplayer

Apex Legends™
Shared: Multiplayer · FPS · Action

Halo Infinite
Shared: FPS · Multiplayer · Action

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

Titanfall® 2
Shared: FPS · Multiplayer · Action

Black Mesa
Shared: Action · FPS · Sci-fi

PAYDAY 2
Shared: Action · FPS · Multiplayer

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

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

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

ARC Raiders
Shared: Multiplayer · Third-Person Shooter · Shooter

Risk of Rain 2
Shared: Third-Person Shooter · Multiplayer · Action

Aliens: Fireteam Elite
Shared: Action · Third-Person Shooter · Aliens

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

Serious Sam 3: BFE
Shared: Action · FPS · Multiplayer

EARTH DEFENSE FORCE 5
Shared: Action · Third-Person Shooter · Aliens