Fans of the sci-fi franchise The Expanse will get to try a slice of the upcoming game The Expanse: Osiris Reborn in a closed beta available now to those who preorder it. Though it’s only a brief demo lasting around an hour, it gives a taste of what the full game has in store, and there’s nothing stopping you from trying it multiple times to see what you missed — that’s what I did, and I heartily recommend it.
Access to the beta doesn’t come cheap: Though the base game costs $50, players will need to head to Owlcat Studios’ online store to buy either the $80 Miller’s Pack edition or the $289 Collector’s Edition to try out the same demo I got to play. The beta covers a short chunk of the game with some fighting, some investigating, some lore and a big cliffhanger. It’s going to be a long wait to see what else happens, as the game won’t come out until spring 2027.
And yes, Osiris Reborn feels a lot like Mass Effect — a third-person shooter with role-playing elements and a lot of characters for players to get to know. The glimpse I saw in the demo, assuming it’s representative of what players will experience in the final release, will feel like a coming home to fans of the Mass Effect franchise. Thankfully, it’s unmistakably set in the universe of The Expanse, with the realistic science, interplanetary culture clashes and conspiracy twists like those found in the franchise’s “hard” sci-fi books and show.
I’ll admit, as a fan of the show, I was tickled by references I recognized, including a news report explaining the destruction of the merchant ship The Canterbury (the event that kicks off the series) and mention of a video by hero James Holden, though it doesn’t show it. That aligns with the Owlcat developers’ assurance that the game will take place at the same time, but not largely overlapping with, the events of the show and books.
Far and away the best part of the demo — which you’ll need to run through twice to see — is how different decisions change outcomes of the story. What seems like a standard request from your character alters another’s destiny and appears likely to have bigger payoffs later in the full game (I’ll share what happens next in the following section).
Owlcat Games developer interviews
In the demo, you take on the role of an unnamed mercenary signed up alongside their twin with private firm Pinkwater Security. The demo lets you play as one of four pre-made builds, such as a hacker focused on gadget-based damage or an officer skilled with guns, with origin choices from Earth or the asteroid belt beyond Mars (known as Belters).
The main character and their twin return from a mission gone awry (presumably the one that opens the game) as the only survivors of their mercenary fireteam on Eros, the space station overrun by the plague-like extraterrestrial protomolecule in the books and show. Relieved after their ordeal, they’re free to wander Pinkwater 4 Station, and I recommend you do so to chat with the wanderlust-filled vendor Luciana and the glum ship dispatcher Harry. Talk to enough people and poke around tablets and computer stations, and you’ll uncover side quests. If your engineering skill is high enough, you can hack open a door.
Then your main character must go up to make their report, explaining to station master and Pinkwater boss O’Connell what happened to your squad on Eros. Unfortunately, something has tracked you back from that cursed place, and you’ll have to shoot your way out of Pinkwater 4 to reach your stolen ship, piloted by your new squadmate Zafar.
Some sections of the game will have players moving into external areas exposed to space, where their magnetic boots are all that keep them from floating into the unknown.
The best part of combat in the demo was the zero-g segments that Owlcat’s developers hinted at in our March interview. As I wandered around the exterior of the Pinkwater station trading fire with Protogen goons, I stepped onto a platform at a different angle — and the camera bent to adjust as my magnetic boots kept me right-side up, but my enemies lay tilted below. It wasn’t quite shooting from the ceiling as Osiris Reborn’s reveal trailer showed, but it was an awesome recreation of the way zero-g combat appears in The Expanse show.
One of the better departures from Mass Effect is how you can mix and match your kit at any time, liberating you from the “class” restrictions of BioWare’s series in favor of starter bonuses from your background (such as greater athletic skill from being born in Earth’s 1G gravity). In the demo, you can mix and match your three gadget slots, and I swapped out my incendiary rounds for an explosive rocket I picked up. There are also four subsystem equipment slots for armor and other buffs. You can also swap your guns for any you pick up along the way, and upgrade all of the above mid-mission with different scrap materials.
As Osiris Reborn is an RPG, there is a skill tree system to put points into once you get enough experience to level up, but what I saw in the demo was adequate, yet not too exciting. The Leadership tree boosts your squadmates’ stats and capabilities when commanded, and the Gadget tree enhances abilities like the drone swarm, but the gun-related tree just boosts damage. It’s necessary, but not nearly as novel as the story and choices.
The Protogen operative runs from your ship’s cannons, gunning down armored enemies.
Now comes the most promising part of the demo: If Pinkwater fought alongside you, the Protogen operative unflinchingly guns down O’Connell and, as you rocket away in your ship, obliterates Pinkwater 4 Station with a nuclear explosion. But if you told O’Connell to stand down at the beginning of the demo, he and the station live another day, albeit at gunpoint. To me, it’s a shocking binary arising from a choice that would be innocuous in another game but carries serious consequences in the world of The Expanse. It felt like a brutal outcome that matched the harsh world of the books and show.
In a little over an hour per run-through, the beta demo for The Expanse: Osiris Reborn offers an insightful look at the meat and potatoes of the game’s combat, abilities and equipment. But we’ll still have to wait to see how the story, characters, relationships and romances play out — the most promising elements to discover, as far as I’m concerned (and, I’d wager, plenty of Mass Effect fans, too).
The Expanse: Osiris Reborn comes out spring 2027 for PC, PS5 and Xbox Series X/S, starting at $50. Fans who preorder the $80 Miller’s Pack edition or $289 Collector’s Edition get access to the beta.
