Cross-Platform & Co-op
This page only keeps the co-op and cross-platform details that can be traced back to current official messaging or live store metadata.
Co-op size
1 to 4 players
Unknown Worlds says you can explore alone or with up to three friends in co-op, which means solo play plus four-player online sessions.
Store metadata
Cross-platform multiplayer listed
The Steam store metadata includes both Online Co-op and Cross-Platform Multiplayer.
Boundary
No extra platform claims
We do not extend this to unsupported platforms or future console plans unless an official source says so.
What we can confirm
- The official release article says you can play alone or with up to three friends in co-op.
- The official article points to Steam, Epic Games Store, and Xbox/Microsoft Store as the current storefront routes.
- The Steam listing includes Online Co-op and Cross-Platform Multiplayer metadata.
- Any platform-specific matchmaking limitation should still be checked on your chosen storefront or official patch notes after launch.
Where to check next
If co-op behavior changes after a patch, use official release notes first, then compare against the store page and your in-game menu. Community reports are useful, but they are not enough on their own for a permanent wiki claim.