Owlcat Games has announced The Expanse: Osiris Reborn, a third-person sci-fi action RPG based on The Expanse TV series. You play as a Pinkwater Security mercenary who gets stuck on Eros during a sudden lockdown, triggering a chain of events tied to a wider conspiracy across the solar system.
Set in the 24th century, Osiris Reborn throws you into a fragile power struggle between Earth, Mars, and the Belt. As chaos unfolds, you’re forced to gather a crew, take command of a high-tech ship, and forge your own path through lies and shifting loyalties. The story adapts to your choices, with every decision affecting your relationships and how the narrative plays out.
Watch the trailer below.
The Crew and Characters
The crew isn’t just filler. Each companion has a backstory and their own motives. Some are driven by loyalty, others by guilt or survival. As your journey continues, your decisions shape how they view you, and how they help or hinder the mission. The ship acts as a hub for these interactions, where quiet moments can mean just as much as loud ones.
Combat Focused on Tactics and Control
Combat in The Expanse: Osiris Reborn is strategic. You’ll control your captain in third-person, using weapons, cover, and special skills to gain the edge. You’ll lead two companions in real time, while others support from afar — hacking systems, drawing fire, or disrupting enemy movements. Success depends on timing, squad coordination, and quick thinking.
Travel the Solar System
You’ll visit a range of locations across the system: the gardens of Ganymede, Ceres slums, deep-belt bunkers, Martian strongholds, and Luna’s political centers. Every place brings different characters, secrets, and power dynamics. How you interact with locals — and what you learn — can impact your standing and open new paths.
Founders Packs Now Available
Owlcat is offering three digital founder packs:
- Standard Pack
- Deluxe Pack
- Miller’s Pack
Each includes varying in-game content and perks, allowing early supporters to get involved and help shape development.
Watch the announcement trailer:
