Games like The Expanse: Osiris Reborn
Below are 20 hand-picked alternatives to The Expanse: Osiris Reborn for fans of action, adventure, rpg, ranked by imho.run's hybrid recommender. Each pick is scored on three signals: collaborative filtering across millions of Steam libraries (which players who logged hours in The Expanse: Osiris Reborn also play), content overlap on genres, categories, and storefront tags, and review-mined "vibe" embeddings that catch tonal similarity even when the genre label differs. Sections below cover closest matches, reviewer cross-mentions, free-to-play picks, more from Owlcat Games. No login required — these picks work anchor-only.
About The Expanse: Osiris Reborn: The Expanse: Osiris Reborn is a third-person Action RPG set in The Expanse universe. You’re no hero — just a merc caught in the wrong place at the wrong time, trying to hold your crew together and keep the ship up and running. Your choices will shape your story.
Players who liked The Expanse: Osiris Reborn also play
Ranked by collaborative filtering across millions of Steam libraries plus content overlap on genres, tags, and developers.
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PRAGMATA
Top pick for The Expanse: Osiris Reborn fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with The Expanse: Osiris Reborn.
Pragmata is a unique, sci-fi action-adventure game from Capcom. Follow Hugh, a member of an ill-fated investigation team, and Diana, a young android, as they navigate a lunar facility taken over by rogue AI in search of a way to Earth.
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Mass Effect (2007)
Second-strongest match for The Expanse: Osiris Reborn fans by collaborative filtering across millions of Steam libraries. Shares Action and RPG with The Expanse: Osiris Reborn.
As Commander Shepard, you lead an elite squad on a heroic, action-packed adventure throughout the galaxy.
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Star Control®: Origins
Third-strongest match for The Expanse: Osiris Reborn fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with The Expanse: Osiris Reborn.
Star Control is a space role-playing game in which you command Earth's first interstellar starship on a mission to save the Earth from hostile alien empires.
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Rebel Galaxy Outlaw
Ranked #4 for The Expanse: Osiris Reborn fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with The Expanse: Osiris Reborn.
Out of cash, out of luck, out on the fringe. Juno Markev has a killer to tail, a debt to pay, and more trouble headed her way. Rebel Galaxy Outlaw takes place in a greasy, blue-collar world of outlaws, truckers, cops and thieves.
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Dead Space™ 2
Ranked #5 for The Expanse: Osiris Reborn fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with The Expanse: Osiris Reborn.
Three years after the Necromorph infestation aboard the USS Ishimura, Isaac Clarke awakens from a coma, confused, disoriented, and on a space station called The Sprawl. Explore this world and its zero-g environments to discover the truth about the Unitology and its role in the Necromorph epidemic.
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Mass Effect 2 (2010 Edition)
Ranked #6 for The Expanse: Osiris Reborn fans by collaborative filtering across millions of Steam libraries. Shares RPG with The Expanse: Osiris Reborn.
Are you prepared to lose everything to save the galaxy? You'll need to be, Commander Shepard. It's time to bring together your greatest allies and recruit the galaxy's fighting elite to continue the resistance against the invading Reapers.
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Dead Space (2008)
Ranked #7 for The Expanse: Osiris Reborn fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with The Expanse: Osiris Reborn.
You are Isaac Clarke, an engineer on the spacecraft USG Ishimura. You're not a warrior. You're not a soldier. You are, however, the last line of defense for the remaining living crew.
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Warhammer 40,000: Space Marine 2
Ranked #8 for The Expanse: Osiris Reborn fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with The Expanse: Osiris Reborn.
Embody the superhuman skill and brutality of a Space Marine. Unleash deadly abilities and devastating weaponry to obliterate the relentless Tyranid swarms. Defend the Imperium in spectacular third-person action in solo or multiplayer modes.
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
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Life is Strange - Episode 1
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Adventure with The Expanse: Osiris Reborn.
Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.
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Ultimate Custom Night
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with The Expanse: Osiris Reborn.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
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ENA: Dream BBQ
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Adventure with The Expanse: Osiris Reborn.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
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Indigo Park: Chapter 1
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Adventure with The Expanse: Osiris Reborn.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
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STRAFTAT
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with The Expanse: Osiris Reborn.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
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Counter-Strike:Global Offensive
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with The Expanse: Osiris Reborn.
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.).
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NGU IDLE
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Adventure with The Expanse: Osiris Reborn.
NGU Idle is a Free To Play Idle game that's full of weird humor, tons of upgrades and hundreds of hours of content! Try out NGU Idle today and experience the joy of Numbers Going Up!
Narrow it down
Head-to-head comparisons
More from Owlcat Games
Other recommendable Steam games by Owlcat Games, ranked by review count so the studio's hits land first.
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Pathfinder: Wrath of the Righteous - Enhanced Edition
Another title from Owlcat Games, the studio behind The Expanse: Osiris Reborn. Shares Action and Adventure with The Expanse: Osiris Reborn.
Embark on a journey to a realm overrun by demons in a new epic RPG from the creators of the critically acclaimed Pathfinder: Kingmaker. Explore the nature of good and evil, learn the true cost of power, and rise as a Mythic Hero capable of deeds beyond mortal expectations.
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Warhammer 40,000: Rogue Trader
Another title from Owlcat Games, the studio behind The Expanse: Osiris Reborn. Shares Action and Adventure with The Expanse: Osiris Reborn.
Made in a close partnership with Games Workshop, Warhammer 40,000: Rogue Trader is a story-rich classical RPG from Owlcat Games, developers of the critically acclaimed game, Pathfinder: Wrath of the Righteous.
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Pathfinder: Kingmaker — Enhanced Plus Edition
Another title from Owlcat Games, the studio behind The Expanse: Osiris Reborn. Shares Adventure and RPG with The Expanse: Osiris Reborn.
Pathfinder: Kingmaker - Enhanced Plus Edition is the first isometric party-based cRPG set in the Pathfinder fantasy universe. Enjoy a classic RPG experience inspired by games like Baldur's Gate, Fallout 1 and 2 and Arcanum. Explore and conquer the Stolen Lands and make them your kingdom!
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Warhammer 40,000: Dark Heresy
Another title from Owlcat Games, the studio behind The Expanse: Osiris Reborn. Shares Adventure and RPG with The Expanse: Osiris Reborn.
Become an acolyte of the Inquisition in this grim dark, party-based, story-driven cRPG. Lead investigations, uncover grand conspiracies, master tactical combat, and wage a secret war against heresy. Make tough choices as a conduit of the God-Emperor’s will.
Frequently asked about The Expanse: Osiris Reborn
- What games are most similar to The Expanse: Osiris Reborn?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside The Expanse: Osiris Reborn are PRAGMATA, Mass Effect (2007), Star Control®: Origins.
- Who developed The Expanse: Osiris Reborn?
- The Expanse: Osiris Reborn was developed by Owlcat Games.
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on The Expanse: Osiris Reborn.
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