Free games like Boundary
Below are 8 free-to-play Steam games similar to Boundary, 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 Boundary page.
Ranked picks
- 1
Tom Clancy's Rainbow Six Siege
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
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.
- 2
PlanetSide 2
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.
- 3
Combat Master: Season 5
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
Join fast-paced action-packed combat. Play Combat Master -- AAA experience on any hardware. Best-in-class multiplayer gunfight. Next-level extreme performance. Lightning-speed loading time and a whole lot more.
- 4
Codename CURE
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
Codename CURE is a first person, co-operative zombie game with support for up to five players, providing dynamic, fast-paced zombie fragging with both objective, and survival-based missions.
- 5
Counter-Strike 2
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
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.
- 6
Tyr
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
Tyr is a multiplayer tank shooter. Pilot heavy-armored vehicles with unique capabilities and upgrade them as you battle for victory with your team.
- 7
World of Warships
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
Immerse yourself in thrilling naval battles and assemble an armada of over 800 ships from the first half of the 20th century — from stealthy destroyers to gigantic battleships. Change the look of your ship, choose upgrades to suit your play style, and go into battle with other players!
- 8
Counter-Strike:Global Offensive
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
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.).