Valheim crossplay is controlled from the server.bat settings. Enable it when players from supported Microsoft Store, Xbox, or crossplay-compatible clients need to join the same dedicated server.
- Open your Valheim server in the control panel.
- Click Configuration Files.
- Open
server.batwith Config Editor. - Tick Enable Crossplay?.

- Click Save & Exit.
- Restart the server.
If crossplay players still cannot join, confirm they are using the current game version and the correct server password.
