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Overview

The closed beta for The Expanse: Osiris Reborn begins on April 22, 2026, giving eligible players their first hands-on opportunity to experience the game ahead of its full release. Unlike a limited weekend test, this beta runs continuously from its launch date all the way through to the game's planned release in Spring 2027. The beta is available on PC (Steam), PlayStation 5, and Xbox Series X|S, covering every platform the full game will ship on.

Access to the closed beta is not free. Players must purchase either the Miller's Pack ($79.99) or the Collector's Edition ($289) from the official Owlcat Games website at osirisreborn.owlcat.games. These two editions are exclusive to the Owlcat store and cannot be purchased through Steam, the Epic Games Store, GOG, or any console storefront. The Standard and Deluxe editions do not include beta access.

How to Access

The closed beta is restricted to players who own one of the two premium editions that include beta access. Both editions must be purchased directly from the official Owlcat Games website. No other storefronts carry these editions. Once purchased, players receive instructions for downloading and installing the beta client on their chosen platform.

The following table shows which pre-order editions include beta access:

The Miller's Pack and Collector's Edition are only available through the official Owlcat Games website (osirisreborn.owlcat.games). They are not sold on Steam, the Epic Games Store, GOG, the PlayStation Store, or the Microsoft Store.

Beta Content

The closed beta includes a full mission from the beginning of the game. Players start on Pinkwater Station (Pinkwater 4), a remote space station that serves as the opening location. During this mission, players meet some of the station's residents, including Zafar, a character who later joins the player's crew as a companion. The mission builds toward a confrontation with a powerful enemy, including a Project Caliban subject, and culminates with the player earning the title of captain.

The beta showcases several of the game's core systems. Players experience combat firsthand, including gunfights against hostile forces on the station. Movement in zero-gravity environments is featured prominently, requiring players to adapt to the physics of operating in microgravity. The mission also introduces themes of life and death that are central to the broader narrative, setting the tone for the full game.

Available Weapons

The beta provides access to a selection of weapon types that cover a range of combat styles. Players can experiment with different loadouts to find what suits their preferred playstyle.

Platforms

The closed beta is available on all three platforms that the full game will launch on. Players who purchase an eligible edition can choose which platform to play on.

Timeline

The closed beta is not a limited-time event. It begins on April 22, 2026 and continues running without interruption until the full game launches in Spring 2027. This extended testing period allows the development team to gather ongoing feedback and iterate on the game's systems while giving players early access to content as it matures.

Because the beta runs for approximately one year, players who join early will have ample time to explore the opening mission content, test different weapon configurations, and provide feedback that shapes the final product.