Valheim Crossplay & Connectivity Guide
Setting up seamless cross-platform co-op across Steam, Xbox, PlayStation, Mac, and Linux systems.
How Crossplay Works in Valheim
Valheim utilizes Microsoft PlayFab as its matchmaking relay backend. When a host enables Crossplay, a unique 6-digit alphanumeric Join Code is generated. Console players can enter this Join Code directly from the "Join Game" menu to connect without typing raw IP addresses or configuring router NAT ports.
When to Disable Crossplay
If all players in your dedicated server group are playing via Steam on PC, running the server without the -crossplay flag connects clients directly via Steam Datagram Relay (SDR), reducing packet latency by 15-30ms and lowering jitter during intensive boss encounters.