STARSEEKER: Astroneer Expeditions has blasted into Early Access today, June 11, 2026, dragging the beloved Astroneer universe out of dormancy for a brand-new co-op adventure. Developed by System Era Softworks and published by Devolver Digital, it is available right now on PC via Steam, the Xbox app on PC, Xbox Series X|S, PlayStation 5 and Nintendo Switch 2 for $29.99 - and it lands on Game Pass from day one.
If you played the original Astroneer, you already know the appeal: a soft, almost toy-like solar system where you can sculpt the ground beneath your boots, tether power across the wilderness and build sprawling bases out of curiosity as much as necessity. Starseeker takes that sandbox and reframes it around structured, mission-driven runs rather than one persistent save.
Expeditions from the ESS Starseeker
The framing device is the ESS Starseeker, an orbital station that serves as your hub between drops. From there you launch Expeditions down to the planet Tephra, tackling hundreds of missions and tasks across an action-focused sandbox. The terrain deformation that made the first game so moreish is back and arguably more central - you can carve tunnels, flatten hills and, if you are feeling ambitious, try to dig a planet apart from the inside out.
Built for crossplay co-op
This is a multiplayer game first. Starseeker ships with full crossplay and cross-progression at launch, so you can drop in with friends regardless of platform and carry your progress between them. Whether you prefer to potter about solo or coordinate a four-person expedition that splits up to mine, build and scout, the Early Access build is designed around playing together.
A roadmap that keeps going
System Era is not treating this as a quiet soft launch. The studio has committed to monthly updates for Starseeker at least through the end of 2026, framing the Early Access period as a long-running collaboration with the community rather than a six-week patch sprint. The $29.99 price point reflects that this is the start of the journey, not the finished article.
For long-time Astroneer fans, the bigger story is simply that System Era is back making something in this universe again - and doing it as a polished, day-one Game Pass release across every current platform. Tephra is open for business.
