Gamescom 2026 hands-on impressions point to The Expanse: Osiris Reborn as a serious Mass Effect-style sci-fi RPG, with strong exploration and narrative hooks balanced against combat and control questions.
Image: gamewatcher.com
Gamescom previews put Owlcat’s space RPG in Mass Effect’s orbit
The clearest takeaway from the latest The Expanse Osiris Reborn preview cycle is that Owlcat Games is being measured against the shape of classic Mass Effect, and the comparison is no accident. Multiple Gamescom 2026 hands-on reports describe Osiris Reborn as a third-person sci-fi action RPG built around companions, conversations, mission spaces, and gunfights rather than the dense isometric systems that defined Owlcat’s Pathfinder games and Warhammer 40,000: Rogue Trader. GameWatcher calls the project a major shift for Owlcat, while PCGamesN frames it directly as another 2027 release for players still looking for a Mass Effect successor.
That comparison is driving renewed attention because it gives sci-fi RPG fans a readable silhouette: a custom captain, a squad-adjacent support network, branching dialogue, weapon loadouts, infiltration, and combat encounters that escalate into set-piece trouble. The tension is that the same reports praising Osiris Reborn’s promise also point to friction. CGMagazine’s hour-long demo found exploration compelling but combat “hit or miss,” especially on controller. GameWatcher, by contrast, saw broad improvements to UI, mechanics, animations, and voice work compared with earlier builds, while still describing the game as a breezy RPG rather than a systems-heavy one. That makes this Osiris Reborn preview wave encouraging, but not settled.
A separate Expanse story built to let newcomers breathe
The Expanse game is not being positioned only for viewers who can recite every factional grievance from the novels and TV series. PCGamesN reports that Osiris Reborn is set around the time of the first two books, in the run-up to the disaster on Eros Station, but follows its own story. The player character works for Pinkwater Security, with customization available, and the demo introduced the captain’s identical twin, Jay, or J depending on the preview source.
That newcomer accessibility matters because The Expanse is dense by design. Its appeal comes from political pressure, class geography, corporate secrecy, and the way small tactical choices can ignite system-wide consequences. PCGamesN’s hands-on writer said they knew the tone without deep lore knowledge and feared being buried under names and references, but came away saying Owlcat’s story was understandable without requiring full franchise fluency. CGMagazine similarly noted that Expanse fans will likely catch familiar details and Easter eggs, while the preview still worked as a space RPG for someone less fluent in the universe.
Wccftech adds a sharper story detail from its Gamescom 2026 session with creative director Alexander Mishulin: character creation covers both the protagonist and their sibling at once because they are twins, with player choices carrying across. Mishulin also described J as the hotter-headed sibling and said the relationship can shift based on dialogue choices. In one cited example, telling J to shut up worsens the relationship and makes them more reserved over time, while supporting them changes their arc in another direction. He declined to spoil later consequences, which leaves the most important question open: whether Osiris Reborn can make that sibling bond feel reactive across a full RPG, rather than only in preview-sized beats.
Exploration is doing the heavy lifting before the shooting starts
Across the Gamescom reports, Osiris Reborn appears strongest when it slows the player down and asks them to read the room. PCGamesN describes a demo built around exploring a space station, speaking with NPCs, scheming into a gated area, manipulating digital records, and using skill checks to make social or investigative routes easier. The same preview notes that persuasion can fail if the player lacks the right skills, and that files, side quests, and ambient conversations help fill out the station.
CGMagazine’s account reinforces that focus. Its previewer noticed no quest markers or minimap in the demo and said the developer present explained Owlcat’s goal was to encourage exploration rather than direct players straight to an objective. That design choice can cut both ways. For players who want friction, routes, and environmental reading, it supports the fantasy of infiltrating a lived-in station. For players who rely on modern RPG signposting, CGMagazine openly says that absence could frustrate them.
The most promising thread is how much of the action seems to happen before weapons are raised. PCGamesN describes conversations as deep and serious, asking players to track what they have learned from previous NPCs. GameWatcher’s Ganymede mission had the protagonist and J scout an enemy base while mercenaries tested weapons and unloaded cargo, building a sense of a space that could become dangerous before it actually did. That is where the Mass Effect comparison feels earned in pacing terms: the walk-and-talk tension before the firefight, the slow camera pan over armed personnel, the player already mapping escape routes in their head.
Companions may be the system that separates it from a simple shooter
The companion structure is one of the biggest reasons The Expanse: Osiris Reborn is being pulled into sci-fi RPG conversation. CGMagazine heard constant comms chatter during its mission and estimated that the number of voices suggested a sizable supporting cast, though the level designer present could not officially confirm specifics. The previewer had J alongside them, picked up another character during the mission, and said the comms presence could become either exciting or overwhelming for party customization.
GameWatcher’s hands-on offers a practical example of how that may work. In its Ganymede chapter, companions who were not physically on the mission still mattered through comms, where their skills could help depending on how they had been developed. The previewer did not control progression in the vertical slice, so the full depth of that system remains unclear, but the idea fits both Owlcat’s RPG background and The Expanse’s tone. Crews in this universe do not survive because one person is good with a rifle. They survive because someone has eyes on a feed, someone knows the politics, someone can crack a system, and someone else is willing to walk into the room first.
That structure also helps explain why the Mass Effect comparisons are sticking. Osiris Reborn is not being described as a massive open sandbox in the Starfield mold by these previews. The cited hands-on reports point instead toward authored missions, party dynamics, skill-gated options, and a ship-or-team ecosystem orbiting the player’s captain. If Owlcat can keep that support network legible, the comms chatter could give the game momentum without forcing every companion into the same corridor.
Combat has promise, but the rhythm is still under inspection
The action side of Osiris Reborn is where the Gamescom impressions become more cautious. GameWatcher describes a mission that eventually erupts into fighting after infiltration and reconnaissance, with crafting materials and weapon mods scattered around the environment. The previewer used an SMG and a sniper rifle, found the customization straightforward, and said the game had more weapon-mod options than BioWare’s action RPGs at a glance. GameWatcher also reports that the latest build showed improvements across UI, mechanics, animations, voice work, and more compared with earlier hands-on sessions.
Wccftech’s Gamescom 2026 demo went bigger in set-piece terms. According to its report, the mission arc moved from covert infiltration to a monster hunt tied to Protogen, Prospero, Project Caliban, and attempts to create a human-Protomolecule hybrid. Mishulin explained that the twins were smuggled into a Protogen facility inside shipping containers while wearing Osiris uniforms as cover. That is strong Expanse material: corporate research, false identities, and a clean mission curdling into biological horror.
CGMagazine’s combat concerns should still temper expectations. Its previewer specifically criticized some controller inputs, saying aiming down sights with LT while trying to press LB or LB plus RB felt awkward and caused missed actions. That is the kind of issue that can be fixed before launch, but it matters for an action RPG where combat rhythm depends on confident inputs. A game can have the right narrative tempo and still stumble if the player’s hands fight the control scheme during pressure moments.
Release timing, expectations, and the wait-a-bit advice
The current timing reported by previews places The Expanse: Osiris Reborn in 2027. PCGamesN says it is releasing in the first half of 2027, while GameWatcher cites a Q2 2027 release window at the time of writing. Those claims are compatible, but Q2 is narrower, so readers should treat the window as preview-reported rather than a substitute for checking any future official Owlcat update.
For now, the practical guidance is simple. If you want a sci-fi RPG built around authored missions, conversations, companions, and tactical shootouts, Osiris Reborn belongs on your watchlist. The Gamescom previews consistently suggest that Owlcat understands the appeal of a serious crew-driven space drama, and PCGamesN’s account is especially encouraging for players who are curious about The Expanse but not steeped in the books or show. If your biggest concern is combat feel, controller layout, or whether the game’s dryness leaves enough room for memorable character texture, waiting for a later demo, beta, or near-launch impressions is the safer read.
The renewed attention is real because Osiris Reborn arrives at a moment when the sci-fi RPG audience is hungry for something with Mass Effect’s mission cadence and companion pressure. The available hands-on reports do not confirm that Owlcat has nailed that landing. They do show a studio trying to translate its RPG instincts into a more cinematic, third-person form, with enough narrative and exploration detail to make the comparison worth taking seriously.