Owlcat Games is developing The Expanse: Osiris Reborn, a third-person narrative action-RPG set within the universe created by Daniel Abraham and Ty Franck [1].

The game represents a significant expansion of The Expanse lore, offering an original story focused on survival and loyalty. By shifting the focus to crew management and ship maintenance, the project aims to provide fans with a narrative-driven space-faring experience [2].

The title was showcased during the IGN Live 2026 event, where gameplay trailers highlighted the tension of maintaining a vessel in deep space [3]. According to narration in the IGN video, the player does not take the role of a traditional hero, but rather a mercenary caught in a difficult situation trying to keep a crew together [3].

Development is currently underway, with a closed beta having begun in April 2026 [2]. This beta phase is intended to run until the game's official launch [2].

Players can expect the full release of the title in spring 2027 [2]. The gameplay loop centers on the precarious balance of keeping a ship operational while navigating the political and physical dangers of the series' established setting [1, 3].

“"You're no hero — just a merc caught in the wrong place at the wrong time"”

The transition of The Expanse franchise into a narrative action-RPG suggests a move toward deeper simulation elements, such as crew dynamics and resource management, rather than a traditional combat-heavy space shooter. By partnering with Owlcat Games, known for complex RPG systems, the creators are positioning the game as a lore-heavy expansion that prioritizes the 'hard science' and logistical struggle of space travel central to the original series.