Free games like Combined Arms Operations Series
Below are 9 free-to-play Steam games similar to Combined Arms Operations Series, 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 Combined Arms Operations Series page.
Ranked picks
- 1
Counter-Strike:Global Offensive
Free-to-play alternative to Combined Arms Operations Series — no purchase or trial window.
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
Landfall Archives
Free-to-play alternative to Combined Arms Operations Series — no purchase or trial window. Shares Strategy with Combined Arms Operations Series.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
- 3
Die in the Dungeon: Origins
Free-to-play alternative to Combined Arms Operations Series — no purchase or trial window. Shares Strategy with Combined Arms Operations Series.
Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!
- 4
Jigsaw Puzzle Dreams
Free-to-play alternative to Combined Arms Operations Series — no purchase or trial window.
Beautiful Multiplayer Jigsaw Puzzle game where you can design the room you play in!
- 5
Counter-Strike 2
Free-to-play alternative to Combined Arms Operations Series — no purchase or trial window.
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
Dota 2
Free-to-play alternative to Combined Arms Operations Series — no purchase or trial window. Shares Strategy with Combined Arms Operations Series.
Every day, millions of players worldwide enter battle as one of over a hundred Dota heroes. And no matter if it's their 10th hour of play or 1,000th, there's always something new to discover. With regular updates that ensure a constant evolution of gameplay, features, and heroes, Dota 2 has taken on a life of its own.
- 7
Tom Clancy's Rainbow Six Siege
Free-to-play alternative to Combined Arms Operations Series — no purchase or trial window.
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.
- 8
THE FINALS
Free-to-play alternative to Combined Arms Operations Series — no purchase or trial window.
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!
- 9
Order of Battle: World War II
Free-to-play alternative to Combined Arms Operations Series — no purchase or trial window. Shares Strategy and Simulation with Combined Arms Operations Series.
Order of Battle: World War II is a breath of fresh air for all strategy fans. It is a game that takes wargaming to a new level by upgrading every single game element and rebooting the genre for a new generation of players.