Valheim Crossplay Checks: Compare Versions Before Rebuilding the Server

Record the actual join problem

Write the platform, game version, host type and exact error or visible behavior. A missing server listing, failed connection and version mismatch are different symptoms. Keep private join information and passwords out of public notes.

Use the developer's crossplay FAQ and current server guide for the supported setup. Crossplay and cross-platform save synchronization are also different features. Being able to join another platform does not automatically mean every platform shares your character or world files.

The 1.0 FAQ describes the release's crossplay and save context. Read it alongside current patch notices rather than assuming a launch announcement covers every temporary rollout condition. This guide does not test your network or connect to a server; it organizes a careful first comparison.

Compare release versions and rollout notices

Check the version on each relevant client and the server. A platform update can arrive later than another platform's update. Do not assume that a current-looking storefront page proves every installed copy has the same build.

Iron Gate's October 15, 2026 patch 1.0.20 notice specifically described a Mac App Store delay affecting crossplay until that platform caught up. That is a dated example, not a claim that the delay remains unresolved whenever you read this page. Check later official notices and the installed versions.

For a worked example, a group could join before an update but one platform now reports a mismatch. They compare builds and the developer's rollout note before changing router settings or recreating the world. The timing of the symptom directs the investigation.

Inspect one supported setup condition

If versions align, follow the relevant official crossplay and hosting instructions for the actual host type. A dedicated service and an ordinary hosted session can need different checks. Use the manual supplied with the current application rather than an old command line copied without context.

Change one relevant condition and repeat the same join attempt. Keep the original configuration and a world backup before significant server changes. Do not expose credentials or grant remote access to an unknown person offering a quick fix.

If mods are involved, identify them explicitly. Iron Gate does not provide official mod compatibility guarantees. A modded client or server should not be treated as the default setup when reporting the symptom, and removing or changing a mod needs its own careful backup and compatibility plan.

Escalate with a useful evidence record

Use official support when the issue remains reproducible after the supported checks. Provide platform, versions, host type, error and the steps already tried. Review logs before sharing so passwords, private addresses or unrelated personal information are not published.

Do not repeatedly reinstall or move saves without evidence that the installation or world data is the cause. Those actions can create a new problem while leaving a rollout or configuration issue unchanged. Restore experiments that did not help.

Finish by recording which condition explained the join failure or which question remains open. A successful crossplay check protects both access and the existing world. It begins with error and version evidence, then moves through supported configuration, rather than treating every failed connection as permission to rebuild the entire server.

Questions that come up