Free games like CTU: Counter Terrorism Unit
Below are 8 free-to-play Steam games similar to CTU: Counter Terrorism Unit, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like CTU: Counter Terrorism Unit page.
Ranked picks
- 1

Counter-Strike:Global Offensive
Free-to-play alternative to CTU: Counter Terrorism Unit — no purchase or trial window. Shares Action with CTU: Counter Terrorism Unit.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
- 2

The Lab
Free-to-play alternative to CTU: Counter Terrorism Unit — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 3

Counter-Strike 2
Free-to-play alternative to CTU: Counter Terrorism Unit — no purchase or trial window. Shares Action with CTU: Counter Terrorism Unit.
For over two decades, Counter-Strike has offered an elite competitive experience, one shaped by millions of players from across the globe. And now the next chapter in the CS story is about to begin. This is Counter-Strike 2.
- 4

Tom Clancy's Rainbow Six Siege
Free-to-play alternative to CTU: Counter Terrorism Unit — no purchase or trial window. Shares Action with CTU: Counter Terrorism Unit.
Rainbow Six® Siege is the reference in tactical team shooters, where elite strategy and execution triumph. Enjoy free access to Quick Match, Unranked, and Dual Front game modes with a selection of operators.
- 5

Team Fortress 2
Free-to-play alternative to CTU: Counter Terrorism Unit — no purchase or trial window. Shares Action with CTU: Counter Terrorism Unit.
Nine distinct classes provide a broad range of tactical abilities and personalities. Constantly updated with new game modes, maps, equipment and, most importantly, hats!
- 6

THE FINALS
Free-to-play alternative to CTU: Counter Terrorism Unit — no purchase or trial window. Shares Action with CTU: Counter Terrorism Unit.
THE FINALS is the world’s first Dynamism Shooter, a free-to-play, fast-paced, physics-driven, first-person shooter set on the stage of the biggest Gameshow of the future! Fight for Fans and fortune in fully-destructible, virtual Arenas that guarantee no two rounds will ever play the same!
- 7

Paladins®
Free-to-play alternative to CTU: Counter Terrorism Unit — no purchase or trial window. Shares Action and Strategy with CTU: Counter Terrorism Unit.
Paladins is the ultimate fantasy team-based shooter experience, with over 50 customizable Champions fighting in 5v5 action across a diverse Realm of modes and maps!
- 8

SCP: Secret Laboratory
Free-to-play alternative to CTU: Counter Terrorism Unit — no purchase or trial window. Shares Action with CTU: Counter Terrorism Unit.
Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape.