Steam Playtests
X Space

Open now · By request

X Space playtest

by X SPACE

A sudden, devastating strike has reduced your interstellar voyage to ruins. As the sole survivor in X SPACE, you must rebuild your space base from scratch, assemble a versatile fleet, and pilot your massive mobile fortress into the depths of the universe.

It's free to ask. The developer chooses who gets in.

Access
By request
On playtest since
Mar 6, 2026
Planned release
2026
Developer
X SPACE
Platforms
Windows
Players
Co-op, LAN, Multiplayer, Online co-op, Single-player
Languages
English, French, German, Italian and 7 more

How to join the X Space playtest

  1. Open the game's Steam page with the Request access button. Sign in to Steam if it asks.
  2. Request access to the X Space playtest there. It's free and doesn't commit you to anything.
  3. The developer lets players in, often in batches, so it can take a while. Steam emails you when you're in, and the playtest appears in your library.

New to playtests? How Steam playtests work

How AI is used

This game utilized AI tools exclusively to assist in writing and optimizing a portion of the underlying code during development. All other elements, including visual assets, 3D models, music, and sound effects, were created entirely without the use of AI. All AI-assisted code underwent manual review and testing to ensure game quality and stability.

The developer's own words, from Steam.

About X Space

Your mission is to survive and find answers. In X SPACE, you must step personally into the unforgiving void. Scavenge wreckage to piece together your first life-support system and establish automated production lines to secure a steady supply of resources. Snap massive space station modules seamlessly together and arm your base to repel warping enemy forces. This is not just a static shelter; it is your mobile fortress in deep space. In the freezing silence of the universe, your engineering blueprints and tactical decisions are the only line between life and death.

Core Features:

  • High-Freedom Modular Building: Start with a single, isolated core module and use a deep building system to design and expand your space fortress. Dispatch a network of logistics drones to create highly efficient, automated resource transportation and production lines. Use precise node-snapping to ensure airtight airlocks, freely crafting your very own steel behemoth.
  • Infinite Community Blueprints: Break the boundaries of imagination! Visit the official game website to download creative, bizarre, and wildly unique space base templates designed by the global player community. Import these blueprints with a single click to expand your interstellar hub on the shoulders of giants, or share your own ultimate fortress to become a legendary engineer revered across the universe.
  • Multi-Role Fleet & 3D Defense: Deep space is never peaceful. Deploy a network of anti-air turrets around your base to defend against hull-shattering meteor storms and enemies lurking in the dark. Build and command a versatile fleet: dispatch warships to scout unknown sectors, mine rare resources in high-risk areas, or engage in intense, physics-driven 3D dogfights.
  • Pilot Your Star Fortress & Explore: Your base is not a dead construct. Drive this massive mobile mothership across the vast universe. Navigate through dangerous sectors, explore abandoned ruins, and scavenge rare resources and lost technology blueprints.
  • Desperate Survival & Seeking the Truth: As the last spark of humanity, balancing complex life-support loops is your top priority. Manage oxygen and power in extreme environments, and perform high-risk spacewalks for resource extraction. As your journey progresses, piece together clues to finally unravel the shocking mystery behind the destruction of your mothership.

From the game's Steam page.