Games like Frontline: Operation Kosmonaut
Games like Frontline: Operation Kosmonaut include Battlefield™ 2042, Call of Duty®, Battlefield™ 6, Titanfall® 2, and BioShock Infinite. We matched them by the tags players give Frontline: Operation Kosmonaut on Steam (Action, 3D, Combat, Singleplayer, and Shooter): closest matches first, and among equally close ones the better-known games.

Battlefield™ 2042
Shared: FPS · Shooter · Action

Call of Duty®
Shared: Action · FPS · Singleplayer

Battlefield™ 6
Shared: Action · Singleplayer · FPS

Titanfall® 2
Shared: FPS · Action · Singleplayer

BioShock Infinite
Shared: Action · Shooter · Singleplayer

Battlefield™ V
Shared: Singleplayer · FPS · Shooter

DOOM
Shared: Action · FPS · Shooter

Call of Duty®: Modern Warfare® III
Shared: Action · Shooter · Singleplayer

Call of Duty®: Modern Warfare®
Shared: Action · Singleplayer · FPS

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

Arma 3
Shared: Action · Shooter · Military

Call of Duty®: Black Ops Cold War
Shared: Singleplayer · Action · FPS

DOOM Eternal
Shared: Action · FPS · Shooter

Ravenfield
Shared: Singleplayer · FPS · Action

Call of Duty®: Modern Warfare® II
Shared: Action · Singleplayer · Shooter

Call of Duty®: Modern Warfare® 2 (2009)
Shared: Action · FPS · Shooter

Ready or Not
Shared: Shooter · FPS · Singleplayer

Battlefield 4™
Shared: Singleplayer · FPS · Action

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

Half-Life 2
Shared: Action · FPS · Singleplayer

Battlefield™ 1
Shared: FPS · Singleplayer · Action

CULTIC
Shared: Action · Shooter · FPS

Counter-Strike: Source
Shared: Action · Shooter · FPS