World modifiers
- World Modifier Preset: Normal, Casual, Easy, Hard, Hardcore, Immersive or Hammer.
- Combat Difficulty: Very Easy to Very Hard.
- Death Penalty: Casual to Hardcore.
- Resource Abundance: Much Less to Most.
- Raid Frequency: None to Much More.
- Portal Restrictions: Casual, Hard or Very Hard.
- No Build Cost, Player Events, Passive Mobs and No Map: one switch each.
Server settings
- Server Name and World Name: a new name creates a new world, an existing name loads it.
- Server Password and Public Server: turn Public Server off to keep the server out of the in-game list.
- Enable Crossplay: lets players on other platforms join.
- Save Interval: how often the world saves, 30 minutes by default.
Windows and Linux
The settings are the same on both. A Linux server created before Auto Config came to Linux keeps Manual Config, where you edit the start script in the browser, until you switch it.
Questions
How do I make a Valheim server hardcore?
Pick Hardcore as the World Modifier Preset on the Auto Config page and start the server.
How do I turn on crossplay?
Turn on Enable Crossplay on the Auto Config page and start the server. Players on other platforms can then join too.
How do I disable the map?
Turn on No Map on the Auto Config page.