Games like SiN Episodes: Emergence
Games like SiN Episodes: Emergence include Half-Life 2, Black Mesa, DOOM, Cyberpunk 2077, and Half-Life. We matched them by the tags players give SiN Episodes: Emergence on Steam (Action, FPS, Cyberpunk, Sci-fi, and Shooter): 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

DOOM
Shared: FPS · Action · Shooter

Cyberpunk 2077
Shared: Cyberpunk · FPS · Sci-fi

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

RoboCop: Rogue City
Shared: Action · FPS · Cyberpunk

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

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

BioShock Infinite
Shared: Action · FPS · Shooter

DOOM Eternal
Shared: FPS · Action · Shooter

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

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

Titanfall® 2
Shared: FPS · Action · Shooter

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

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

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

Quake
Shared: FPS · Action · Classic

Halo Infinite
Shared: FPS · Action · Shooter

Call of Duty®
Shared: FPS · Action · Shooter

Counter-Strike
Shared: Action · FPS · Shooter

Quake II
Shared: FPS · Action · Classic

Wolfenstein II: The New Colossus
Shared: Action · FPS · Singleplayer

DOOM + DOOM II
Shared: FPS · Action · Classic