The landscape of modern science fiction gaming is often dominated by sprawling open-world epics or fast-paced looter-shooters, but rarely does a project capture the claustrophobic, politically charged tension of the hard-sci-fi genre. Enter The Expanse: Osiris Reborn, the latest ambitious project from Owlcat Games. Recently, at Gamescom 2026, I spent 90 minutes immersed in a mid-game slice of this title, and the experience suggests that we may be looking at the spiritual successor to the Mass Effect trilogy that fans have been clamoring for—not just in mechanics, but in its unwavering commitment to the ethos of its source material.
The Gravity of the Situation: Mechanics as Worldbuilding
One of the first things a player notices upon booting up The Expanse: Osiris Reborn is a curious, almost jarring design choice: you cannot jump. In an era where verticality is a staple of action-adventure titles, this omission feels intentional. While developers at Owlcat Games remained tight-lipped when pressed for a formal confirmation, the rationale is baked into the very DNA of James S.A. Corey’s universe.
In The Expanse, the setting is defined by the harsh realities of space travel, low-gravity environments, and the reliance on magnetized boots to maintain footing on station decks and ship hulls. By restricting movement to a grounded, tactical gait, Owlcat subtly enforces the lore. You are not a superhero leaping across rooftops; you are a denizen of the Belt, a person navigating an environment that is constantly trying to kill you through lack of atmosphere or sudden decompression. This design decision, while potentially alienating to those accustomed to high-mobility shooters, creates an immediate, palpable sense of immersion. It signals that Osiris Reborn is not a power fantasy—it is a survival simulation wrapped in the skin of a third-person shooter.
A New Perspective on the Belt
The Expanse: Osiris Reborn does not seek to retell the saga of James Holden and the Rocinante. Instead, it carves out a unique niche within the established timeline, running concurrently with the events of the first three seasons of the television show (or the first two novels, Leviathan Wakes and Caliban’s War).
Players step into the boots of a custom protagonist, accompanied by a twin sibling named "J" and a rotating roster of squadmates who feel cut from the same cloth as the memorable companions found in BioWare’s golden-era RPGs. The narrative approach is clever: you are not the center of the galaxy-shifting geopolitical earthquake, but rather a witness to the tremors. While iconic figures from the series are confirmed to make appearances, the focus remains squarely on the player’s agency within the periphery of the major historical beats. This choice avoids the "protagonist paradox" where a new character suddenly becomes the most important person in the universe, allowing the story to explore the grit and grime of the Belt without undermining the established legacy of the source material.
The Combat Loop: Tactical Tension
For years, the industry has chased the high of the original Mass Effect trilogy’s cover-based combat. Many have tried, and most have failed to replicate that specific "punchy" satisfaction. During my demo, it became clear that Owlcat has managed to crack the code. The combat is deliberate, requiring a blend of tactical positioning and split-second instinct. You are not just firing a weapon; you are managing a squad, directing companions to perform specialized actions, and responding to the fluidity of the battlefield.
The mission I explored, titled "Beetle in the Anthill," occurred around the 10-hour mark—a significant point in the game’s projected 30-hour runtime. Set against the backdrop of Ganymede Station following the destruction of Eros, the mission required my squad to infiltrate a facility belonging to Protogen, the primary antagonist force of the early series. The combat felt dangerous. Every exchange of fire carried weight, and the AI seemed programmed to punish recklessness. It is a refreshing departure from the "bullet sponge" enemies common in the genre, forcing players to respect the lethal efficiency of ballistics in enclosed, pressurized spaces.
Immersive Sims and Political Intrigue
Perhaps the most surprising aspect of the demo was the realization that combat is often the secondary option. Much like the best entries in the immersive sim genre, Osiris Reborn provides players with multiple avenues to achieve their objectives. In one particular sequence, rather than storming a storage facility, I was tasked with navigating a bureaucratic nightmare to gain access to a secure zone.
This involved hacking computer terminals, forging shipping invoices, and scanning cargo containers for serial numbers. It felt like a deliberate nod to the political machinations that define The Expanse. The narrative team at Owlcat clearly understands that the series is at its best when it explores the cost of conflict rather than just the act of violence. By allowing players to navigate these nonlethal puzzles, the game rewards curiosity and patience, making the eventual inevitable firefights feel earned rather than forced.
Production Design: A Love Letter to the Fans
The attention to detail in the environment is nothing short of breathtaking. The Ganymede agricultural domes, rendered with a level of fidelity that suggests a direct collaboration with the show’s production designers, serve as both a playground and a narrative device.
For the uninitiated, these massive, spherical greenhouses are a technical marvel of in-game art, representing the fragility of life in the Belt. For those familiar with the show, these domes carry the heavy, ominous weight of impending disaster. Owlcat avoids the trap of "wink-and-nod" fan service; there is no dialogue that screams, "Remember this from Season 2?" The environment speaks for itself. This restraint demonstrates a profound respect for the player’s intelligence and a confidence in the game’s ability to stand on its own merits as a sci-fi experience.
The Challenge of the Licensed Property
Despite the evident quality of the gameplay and the depth of the world-building, the road ahead for Osiris Reborn is not without obstacles. As of 2026, it has been five years since the conclusion of The Expanse television series. While the fanbase remains passionate, the cultural zeitgeist has shifted. The game must prove that it can capture the interest of a general audience that may not know a "Belter" from an "Inner."
Licensed games are notoriously hit-or-miss, and the graveyard of failed adaptations is deep. However, recent successes like 007: First Light have shown that if a developer treats the license as a foundation rather than a crutch, the results can be transformative. Osiris Reborn feels like a "Disneyland for fans," but it also possesses enough mechanical polish to potentially win over the uninitiated.
Looking Ahead: Spring 2027
The demo concluded with a high-stakes encounter against a Hybrid—a terrifying manifestation of the Protomolecule—which forced a difficult decision regarding the safety of civilians versus the necessity of escape. It was a classic "BioWare-style" choice, one that implies long-term consequences that will ripple through the remainder of the 30-hour campaign.
As I left the demo, I couldn’t help but feel optimistic. The Expanse: Osiris Reborn is attempting to balance the heavy, narrative-driven expectations of a beloved franchise with the mechanical demands of a modern third-person shooter. If Owlcat Games can maintain this level of quality, pacing, and atmosphere, they won’t just be releasing a "good licensed game"—they will be delivering one of the defining science fiction experiences of the generation.
The Expanse: Osiris Reborn is slated for release in the spring of 2027 on PlayStation 5, Xbox Series X, and Windows PC. Whether you are a die-hard fan of the books or someone looking for a deep, tactical, and politically charged space adventure, this is a title that demands your attention.
