Games like Unknown Signal
Games like Unknown Signal include Fallout 4, BioShock Infinite, Half-Life 2, Black Mesa, and Far Cry® 4. We matched them by the tags players give Unknown Signal on Steam (Casual, Adventure, Action, Shooter, and Exploration): closest matches first, and among equally close ones the better-known games.

Fallout 4
Shared: Adventure · Exploration · Shooter

BioShock Infinite
Shared: Action · Shooter · FPS

Half-Life 2
Shared: Action · FPS · Shooter

Black Mesa
Shared: Action · FPS · Shooter

Far Cry® 4
Shared: Action · Adventure · FPS

Far Cry® 6
Shared: FPS · Shooter · Action

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: FPS · Shooter · Exploration

Metro Exodus
Shared: FPS · Action · Atmospheric

Far Cry 3
Shared: Action · Adventure · FPS

VLADiK BRUTAL
Shared: Shooter · Action · FPS

How to Fish
Shared: Shooter · Adventure · First-Person

Counter-Strike 2
Shared: Shooter · FPS · Action

Echo Point Nova
Shared: Shooter · FPS · Exploration

Far Cry® 2
Shared: Action · Shooter · FPS

Call of Duty®
Shared: Shooter · FPS · Action

Aimlabs
Shared: Shooter · FPS · Action

Grand Theft Auto V Legacy
Shared: Action · Adventure · Shooter

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

Ready or Not
Shared: Shooter · FPS · Action

METRO Last Light Redux
Shared: Action · FPS · Atmospheric

RoboCop: Rogue City
Shared: Action · FPS · Shooter

S.T.A.L.K.E.R.: Shadow of Chornobyl - Enhanced Edition
Shared: Adventure · Action · Shooter

Deep Rock Galactic
Shared: FPS · Shooter · Exploration

METRO 2033 Redux
Shared: FPS · Action · Atmospheric

