Free games like Outcasts of Orion
Below are 9 free-to-play Steam games similar to Outcasts of Orion, 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 Outcasts of Orion page.
Ranked picks
- 1
Die in the Dungeon: Origins
Free-to-play alternative to Outcasts of Orion — no purchase or trial window. Shares Strategy with Outcasts of Orion.
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!
- 2
PlanetSide 2
Free-to-play alternative to Outcasts of Orion — no purchase or trial window.
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
Limbus Company
Free-to-play alternative to Outcasts of Orion — no purchase or trial window.
As the Executive Manager of Limbus Company, lead your group of twelve Sinners, venture into the buried facilities of Lobotomy Corporation, and lay claim on the Golden Boughs.
- 4
Dota Underlords
Free-to-play alternative to Outcasts of Orion — no purchase or trial window. Shares Strategy with Outcasts of Orion.
Hire a crew and destroy your rivals in this new strategy battler set in the world of Dota. Introducing Season One: Explore White Spire and earn rewards on the Battle Pass. Pick from several different game modes, play on your own or with friends, and take advantage of crossplay on PC and mobile.
- 5
Eternal Return
Free-to-play alternative to Outcasts of Orion — no purchase or trial window. Shares Strategy with Outcasts of Orion.
Eternal Return is a free-to-play, 2.5D perspective Battle Royale game. Search, Craft, Hunt, and Fight using a variety of characters. Plan your strategy and become the last survivor on this eternal experiment.
- 6
Alien Swarm
Free-to-play alternative to Outcasts of Orion — no purchase or trial window.
Co-operative multiplayer game and complete code base available for free.
- 7
Alien Swarm: Reactive Drop
Free-to-play alternative to Outcasts of Orion — no purchase or trial window.
Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics.
- 8
Card Hunter
Free-to-play alternative to Outcasts of Orion — no purchase or trial window. Shares Strategy with Outcasts of Orion.
Shuffle your cards and ready your dice - Card Hunter is a fresh new card gaming spin on classic tabletop RPGs. Battle your way through a massive campaign solo or with friends and compete with other players in ranked play and tournaments.
- 9
All Walls Must Fall - A Tech-Noir Tactics Game
Free-to-play alternative to Outcasts of Orion — no purchase or trial window.
All Walls Must Fall is a Tech-Noir Tactics game set in Berlin 2089, where the Cold War never ended.