Editorial correction — November 11, 2026: This March 27 report repeatedly gave the closed-beta opening as April 22, 2023. That was incorrect: Owlcat Games announced April 22, 2026, and confirmed the beta was available on that date. We have corrected the timeline and replaced speculative descriptions with information published by the developer. The original article URL and publication date remain unchanged.
When did The Expanse: Osiris Reborn's beta begin? Owlcat Games opened the founders' beta on April 22, 2026, not in 2023. The studio announced the date in its March 26 preview and then published its beta launch notice on April 22.
How the beta access worked
Owlcat said beta access was available to players who purchased the Miller's Pack or Collector's Edition through the game's founders program. Eligible players could claim a key through their official website account, select a supported platform and activate the code. The developer identified PC via Steam, Xbox Series X|S and PlayStation 5 as beta platforms.
That is different from a freely downloadable public demo. Owning the base game or wishlisting it did not, by itself, establish eligibility for founders' beta access. Any current availability or sales terms should be checked with Owlcat rather than assumed from a historical offer.
The official Owlcat beta announcement also describes the experience as a 1–2 hour segment depending on how extensively players talk to characters and explore. It does not contain the entire story or every system planned for release.
What mission could players experience?
The beta contains one complete early-game mission based around Pinkwater 4 station, following events in which the protagonist and their twin escape from Eros. The story introduces characters and obstacles that set up the wider conflict, but the developer explicitly warned that the sample contains spoilers.
At beta launch, players could select from four main-character presets; the complete character creator was not included. Owlcat described a roster of eight firearms and nine abilities, some unlocked through equipped gadgets. The playable mission also features Zafar, a character intended to join the player's ship crew later.
The original GameLogNews article called the sample a full early campaign and implied extensive late-game ship-management mechanics had been demonstrated. Owlcat's published beta feature list does not support that. A single early mission is a more accurate description.
Combat, gadgets and companions
The developers describe combat as a third-person cover shooter with RPG abilities and squad interactions. In the beta, the player's twin J helps in combat, while Zafar participates in the mission and appears in the wider crew narrative. Weapons range across familiar categories such as assault rifles, sniper rifles, pistols and shotguns.
Owlcat also introduced the Exploits system: an environmental opportunity can be triggered by directing a companion to interact with the right part of a combat area. The developer's Xbox Wire presentation describes this as a way for a crew to influence a fight beyond ordinary shooting.
These features are developer-documented. We are not presenting an independently tested frame-rate, a guaranteed balance outcome or a hands-on review by GameLogNews.
What is the story premise?
The Expanse: Osiris Reborn takes place in the science-fiction universe of The Expanse. Players control a mercenary working for Pinkwater Security, traveling with their identical twin when events around Eros station lead to a devastating crisis. They escape on an experimental ship and become embroiled in a wider conflict.
The game promises choices with consequences and relationships involving crew members recruited over time. Owlcat has introduced companions such as Zafar, Regina, Teo and Michael. That does not establish that each character is selectable in the limited founders' beta; the launch note lists the specific playable experience separately.
When is the full game expected?
Owlcat announced a spring 2027 release window on March 26. Its official Steam page continues to show Q2 2027. Neither is an exact launch day, and a release window can change as development continues.
The publisher lists PC, PlayStation 5 and Xbox Series X|S for the game. Its original Xbox announcement also confirmed a planned launch-day Game Pass presence. For platform-specific availability and pricing, the relevant regional store is more reliable than speculative marketing claims in a dated news article.
What should prospective players check?
If you are interested in the beta, verify whether the founders program and your platform's registration method are still available from Owlcat's official site. Check the beta's own access conditions and keep your account credentials private. Do not purchase an old offer simply on the assumption that a 2026 beta key will always be supplied.
For the full release, distinguish three separate dates: the March 26, 2026 gameplay announcement, the April 22, 2026 founders' beta start and the Q2 2027 planned full release. Confusing these milestones makes an archive unhelpful to readers.
Bottom line: the closed beta launched on April 22, 2026, with one early mission for eligible founders. The full game is planned for 2027; the earlier article's repeated 2023 references were wrong.
Primary sources: Owlcat's beta launch announcement, March gameplay and access announcement, Owlcat's Xbox Wire feature and the official Steam listing.