STARSEEKER: Astroneer Expeditions, a co-op escape spin-off of the survival sandbox ASTRONEER, is in early access on PC, Nintendo Switch 2, PS5, and Xbox Series X|S, and is included in Xbox Game Pass and PC Game Pass.
STARSEEKER: Astroneer Expeditions is the first spin-off of the survival sandbox ASTRONEER, released in early access on June 12, 2026. The game shifts from open-ended survival to timed co-op escape missions. Teams of up to four players survey planets, mine resources, and return to their rocket within a 30-minute oxygen limit. The game is set in the Astroneer universe and uses the same terrain-modifying tools and planetary exploration mechanics.
The early access launch was covered in two separate stories. The first, published on June 12, confirmed the release date and platforms: PC, Nintendo Switch 2, PS5, and Xbox Series X|S. That story also noted a game guide and a Twitch Drops event. A later story on July 4 described the game as an online co-op escape action game and reiterated the 30-minute oxygen limit and four-player teams. The two stories agree on the core details but use slightly different genre labels: the June story calls it a cooperative action-adventure, while the July story calls it an escape action game.
Microsoft announced the game as a day-one release for Xbox Game Pass and PC Game Pass, joining a batch of nine titles added from June 4 to June 16, 2026. The game is published by Devolver Digital and developed by System Era Softworks, the same studio behind the original ASTRONEER. The spin-off is currently in early access, with no announced date for a full release.
Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.
Devolver Digital and System Era Softworks have released STARSEEKER: Astroneer Expeditions, a spin-off of the survival sandbox ASTRONEER. Unlike the original, this is an online co-op escape action game where teams of up to four players must survey planets, mine resources, and return to their rocket within a 30-minute oxygen limit. The game is currently in early access.
Devolver Digital and System Era Softworks released the early access version of STARSEEKER: Astroneer Expeditions on June 12, 2026, for PC, Nintendo Switch 2, PS5, and Xbox Series X|S. The cooperative action-adventure game is set in the Astroneer universe and has players exploring space from the ESS Starseeker station. A game guide and a Twitch Drops event are also available.
Microsoft announced nine titles joining Xbox Game Pass and PC Game Pass from June 4 to June 16, 2026. Five are day-one releases: Solarpunk: Sky Island, Beastro, Frog Sqwad, STARSEEKER: Astroneer Expeditions, and Junkster. Four additional titles round out the lineup.