Free games like Interstellar Conquest
Below are 8 free-to-play Steam games similar to Interstellar Conquest, 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 Interstellar Conquest page.
Ranked picks
- 1
Counter-Strike:Global Offensive
Free-to-play alternative to Interstellar Conquest — 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 Interstellar Conquest — no purchase or trial window. Shares Strategy and Indie with Interstellar Conquest.
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 Interstellar Conquest — no purchase or trial window. Shares Strategy and Indie with Interstellar Conquest.
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
The Life and Suffering of Sir Brante — Chapter 1&2
Free-to-play alternative to Interstellar Conquest — no purchase or trial window. Shares Strategy and Indie with Interstellar Conquest.
A narrative-driven hardcore RPG set in a gritty world where the gods are real. Set out on a challenging lifetime journey, where every choice you make has a price to pay and consequence to it. Will you become an inquisitor, a judge, or conspire against the old order? Dare to decide!
- 5
Counter-Strike 2
Free-to-play alternative to Interstellar Conquest — 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
Tom Clancy's Rainbow Six Siege
Free-to-play alternative to Interstellar Conquest — 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.
- 7
THE FINALS
Free-to-play alternative to Interstellar Conquest — 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!
- 8
Splitgate
Free-to-play alternative to Interstellar Conquest — no purchase or trial window. Shares Indie with Interstellar Conquest.
Splitgate is a free-to-play, fast-paced multiplayer shooter that features player-controlled portals. This sci-fi shooter takes the FPS genre to a new dimension with its portal mechanics, delivering high-flying, multi-dimensional combat.