01Pluto · Beyond Neptune
Beacon in the Dark
Cross ice canyons, restore the beacons and leave a road home for your companion.
Play this expeditionA field guide to your next journey
Free space exploration games
A canyon to cross. A moon to understand. A companion to bring home. Choose a world and discover it through your own small decisions.
Choose an expedition- Free to play
- No download or account
- Three languages
A good place to begin
Beacon in the Dark
Start on Pluto if you enjoy finding paths through a striking landscape. Restore beacons across the ice canyons and help Mara reach the other side.
Play this expedition ↗COSMIC ARCHIVE
What will you discover?
Choose the kind of discovery you enjoy.
01
02Io · Jupiter I
Furnace Clock
Read old crust and fresh lava with Mara. Choose a crossing and recover a stranded probe.
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03Europa · Jupiter II
Breathing Ice
Compare ice echoes, guide a tethered probe through hidden passages and bring back evidence.
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04A pocket planet
Last Seed
Dig into a tiny world and build living machines to keep Earth’s last seed alive.
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05Haumea · The distant ice
Beneath the Ring
Follow reflections into the ice valleys. Work with Mara to open bridges and reach a distant field record.
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06Ganymede · Jupiter III
Magnetic Cathedral
Leave a reference with Mara, remove local interference and compare the field beneath the aurora.
Play this expeditionSmall journeys. Room for curiosity.
Cosmic Archive is a collection of free, single-player browser adventures. Walk with Mara, Sol and Nia, read the landscape, and use what you notice to find a way forward. Each game has its own destination and a connected story.
Move, observe, try an idea.
Use arrow keys or WASD to move, and Space for the action shown on screen. Touch controls are available in the game. You can explore at your own pace and return to a nearby safe point when a route goes wrong.
Real worlds. Imagined journeys.
Spacecraft observations inspire the real destinations. The crew, routes, equipment and encounters are fiction; distances and times are compressed. Each expedition separates its scientific background from its imagined adventure. These games are not mission or survival simulators.
NASA · Explore the real observations ↗Before you set out
Are these space games free?
Yes. The expeditions are free to play in your browser, with no download or account. Optional support helps keep the project going.
Do I need to play in order?
You can start with any destination. For the full crew story, begin with Last Seed and follow the next-chapter links. Each collection also has its own sequence of five games.
Will my expedition resume next time?
A new visit starts a fresh expedition. Checkpoints help during the current visit; supported completion records and preferences stay in this browser when local storage is available.
Another way into the universe