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The Expanse Game Gets a Sad Release Date Update — and a Demo

Owlcat Games will launch a closed beta next month for The Expanse: Osiris Reborn, a third-person shooter set in iconic locations from the sci-fi series.

  • Owlcat Games announced a Closed Beta for The Expanse: Osiris Reborn, launching on Xbox Series starting April 22, 2026. Founders purchasing the Miller Pack or Collector Edition gain early access to the upcoming action-RPG.
  • Based on James Corey's sci-fi novels, the title is scheduled for Spring 2027 release. The game positions itself as a Mass Effect-style action-RPG exploring political struggles across Earth, Mars, and the asteroid belt.
  • Players will experience a full mission from the game during the preview period. According to the developer, "Each mission in Osiris Reborn presents you with a choice, one that may entail large long-lasting consequences."
  • Releasing the Beta a full year before launch gives Owlcat time to gather feedback and implement improvements. Early adopters will help the studio refine gameplay before the official Spring 2027 debut.
  • The game aims to expand the Expanse universe with original stories rather than directly adapting the books. Gameplay features cover-based shooting reminiscent of Mass Effect across locations like Mars, Ceres, and Luna.
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gamereactor.es broke the news in on Thursday, March 26, 2026.
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