Steam game

STARSEEKER: Astroneer Expeditions

Join the ESS Starseeker crew to explore strange new worlds, working together with friends to complete planet-wide objectives before the station journeys on to new planetary destinations. Collect and unlock powerful tech to help the crew tackle the perils of space!

$29.99 June 11, 2026

By System Era Softworks

Windows Controller: full
View on Steam
STARSEEKER: Astroneer Expeditions - System Era Softworks. Popular. Released June 11, 2026
Screenshot of STARSEEKER: Astroneer Expeditions gameplay showing in-action mechanics Screenshot 2 of STARSEEKER: Astroneer Expeditions - additional gameplay view Screenshot 3 of STARSEEKER: Astroneer Expeditions - more gameplay footage Screenshot 4 of STARSEEKER: Astroneer Expeditions - final gameplay screenshot

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About the Game

STARSEEKER: Astroneer Expeditions is a new multiplayer game set within the Astroneer universe with a focus on discovery, online cooperative play, and camaraderie. Exploring deep space on the ESS Starseeker, players will need to work together with the crew of the space station to complete objectives that will take them further into the unknown Regions of each planet. Plan and deploy on timed Expeditions to gather resources, complete missions, and further the goals of you, your Squad, and the entire station.

Explore handcrafted and evolving worlds

The ESS Starseeker orbits unknown planets in the hopes of discovering the mysteries within. The Starseeker crew works together to venture deeper, unlocking new Landing Sites in a collective effort that will take players to new Regions, unique biomes with their own specific gameplay. Planet Tephra is the first stop, a world of sprawling wetlands, dense jungles, and vast oceans, covered in the wreckage of an ill-fated EXO Dynamics voyage.

Lead Expeditions to challenging alien worlds filled with life

Every planet is filled with a variety of encounters! Interesting and dangerous creatures, hazardous flora, and mysterious forces await the crew. Work together with your squad to complete missions that can be solved in a variety of ways but always requiring you to think on your feet. Then take the spoils back up to the station to craft more advanced gear to take on even more dangerous missions.

Unlock gear and customize your loadout

Players will have an advanced set of tools at their disposal to tackle Expeditions while they face off with the unknown perils of space. Complete missions assigned by the station's leadership and other members of the crew to unlock new blueprints and tailor your own custom loadout. You'll need it if you plan on braving the planet's toughest challenges.

Collaborate with station NPCs to unravel an evolving narrative

The ESS Starseeker is the heart of the crew, an ever-evolving space station where players get together to plan Expeditions, upgrade their gear, and hang out with other players. Complete missions given by the Fronteer Force, the cast of elite Explorers who command the ESS Starseeker. Get to know the characters, learn about the lore, and unravel the mystery of what's really going on out here in deep space...

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