Valheim

Setting up a Valheim server, password and crossplay, world files and transfers, the built-in backups, mods with BepInEx and updates.

Valheim server setup and first joinThe three settings that matter, finding the server in the list, and joining directly with the port.
World files and transferring a worldWhere Valheim keeps worlds, moving a world from your PC or another host, and switching between worlds.
The built-in world backupsValheim's own backup rotation on the server, how the BACKUP variables work, and restoring from one.
Mods with BepInExInstalling the BepInEx framework and Valheim mods on the server, and which mods players need too.
Game updates and server restartsHow Valheim updates land on the server, version mismatches, and a restart schedule that keeps memory in check.