Official servers (PlayFab) usually block mismatched or modified clients.
The Mistlands update hit the Public Test Branch in November 2022 and went live in December 2022. VALHEIM MISTLANDS ONLINE V0.213.3(2021)
Older pirated versions often corrupt character data when you eventually try to move to the official Steam/Xbox version. 💡 Official Way to Play To get the real Mistlands experience with the latest fixes: Platform: Available on Steam , PC Game Pass , and Xbox . PC Game Pass
In 2021, Valheim was still in its "Hearth & Home" phase (v0.202.x). ⚠️ Risks of Unofficial "Online" Versions and Xbox . In 2021