Polygon.com / 26.03.26

The Expanse: Osiris Reborn release date update announced alongside closed beta

The Expanse: Osiris Reborn won't be out until 2027, but you can play a demo starting April 2026.
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Other sources

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  GamesRadar.com 26.03.26

  The Expanse: Osiris Reborn devs do not think of ourselves as a successor to the Mass Effect series, even if the Owlcat team really enjoyed and take great inspiration from BioWare's sci-fi RPGs
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  GamesRadar.com 26.03.26

  Mass Effect-inspired sci-fi RPG The Expanse: Osiris Reborn gets a spring 2027 release window, and it has a closed beta coming next month
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  IGN.com 26.03.26

  The Expanse: Osiris Reborn Gets a Debut Gameplay Trailer With Big Mass Effect Vibes, a Closed Beta, and a Spring 2027 Release Window