Games like Prime Directive
Games like Prime Directive include Half-Life 2, Black Mesa, BioShock Infinite, Atomic Heart, and High On Life. We matched them by the tags players give Prime Directive on Steam (Metroidvania, Action-Adventure, FPS, First-Person, and Action): closest matches first, and among equally close ones the better-known games.
Half-Life 2
Shared: FPS · Action · First-Person
Black Mesa
Shared: FPS · Action · First-Person
BioShock Infinite
Shared: Action · FPS · First-Person
Atomic Heart
Shared: FPS · Adventure · Action
High On Life
Shared: FPS · Action-Adventure · Adventure
Call of Duty®: Black Ops III
Shared: FPS · Action · First-Person
Supraland
Shared: Metroidvania · First-Person · Adventure
Half-Life
Shared: FPS · Action · First-Person
Halo Infinite
Shared: FPS · Action · First-Person
Far Cry® 6
Shared: FPS · Action-Adventure · Action
BONELAB
Shared: Physics · Action · First-Person
How to Fish
Shared: First-Person · FPS · Physics
Half-Life: Opposing Force
Shared: FPS · Action · First-Person
Half-Life: Blue Shift
Shared: FPS · Action · First-Person
RoboCop: Rogue City
Shared: FPS · Action · First-Person
Battlefield™ 2042
Shared: FPS · Action · First-Person
Counter-Strike 2
Shared: FPS · Action · Shooter
Aimlabs
Shared: FPS · Action · First-Person
Far Cry 3
Shared: FPS · Action · Adventure
Portal 2
Shared: First-Person · Singleplayer · Action-Adventure
Call of Duty®
Shared: FPS · Action · First-Person
BONEWORKS
Shared: Action · Physics · First-Person
Far Cry® 5
Shared: Action-Adventure · FPS · First-Person
Titanfall® 2
Shared: FPS · Action · First-Person