The Deep North is the reason most groups are coming back to Valheim this month, and the first thing they ask after updating their server is "where is it?" If your world was created before 1.0, the answer depends entirely on where your group has already sailed. Here is how the new biome reaches an existing world, what you can and can't do about it, and how a dedicated server fits in.
The rule: Deep North generates only where nobody has been
Valheim worlds are generated from a seed, but the parts of the map players have visited are saved as they were. Iron Gate's 1.0 approach for existing worlds is the same one they used for Mistlands and the Ashlands: new content appears in areas of the world that have not yet been explored. Every zone your group has already loaded stays exactly as your save recorded it.
The Deep North sits at the far northern edge of the map. So:
- If your group has never sailed that far north, the biome is waiting there, fully formed, the first time someone arrives after the update.
- If someone already explored the northern edge before 1.0, those explored zones will still show the old placeholder terrain. Unexplored zones around them get the new content.
How to check what you've explored
Open the map in-game. Explored area is the part of the map that's revealed; fog is unexplored. Anything under fog along the northern rim will generate as Deep North. If the northern rim is revealed on your map, that part is locked to its old state.
What if the north is already explored?
There is no in-game way to regenerate part of a world, and no server setting for it either. The realistic options:
- Live with it. The Deep North is large; unless your group systematically mapped the entire northern edge, most of it is still under fog.
- Start a new world for the endgame. Many groups keep their main world and spin up a second one for the Deep North push. On a dedicated server that's a new World Name and a restart; the old world stays on disk and you can switch back any time. Characters carry over — your gear and skills live in the character file, not the world.
- World-editing tools. Community tools can reset regions of a save. They are unofficial, they break with updates, and a mistake corrupts the world. Back up first and treat it as a last resort.
Does the update need anything from the server?
The server has to be running the 1.0 build. On a self-hosted server that means re-running the SteamCMD update line; on a host it's usually automatic on restart. You can confirm in the console — the first lines after start show the version:
Valheim version: l-1.0.7 (network version 39)
and when the world loads, 1.0 tags it:
ZDOMan.LoadChunks - ... WorldVersion: 41 [DeepNorth]
If the console still shows a pre-1.0 version, the server hasn't updated, and players on the new client can't join at all — see what 1.0 changed for server owners.
Moving an existing world onto a server for the Deep North push
A lot of groups hosted from one player's PC during Early Access and are moving to a dedicated server for 1.0 so the world runs while everyone is offline — and so PS5 and Switch 2 friends can join. The move is two files:
- Find the world in the host's save folder — a folder named after the world if it has been played on 1.0, or
<World>.db and <World>.fwl if it has not (%USERPROFILE%\AppData\LocalLow\IronGate\Valheim\worlds_local\ on Windows).
- Copy both into the server's
worlds_local folder, set the server's world name to match, and start.
Exploration state travels with the world, so the Deep North rule above applies exactly as it would have on the original PC.
Frequently Asked Questions
Will the Deep North appear in my old Valheim world?
Yes, in any part of the northern edge your group hasn't explored yet. Already-explored zones keep their old terrain.
Do I have to start a new world for Valheim 1.0?
No. Existing worlds keep working. A new world only matters if your northern edge is already explored.
Can I regenerate part of my world?
Not with anything Iron Gate ships. Unofficial world editors exist; back up first and expect risk.
Does my dedicated server need updating for the Deep North?
Yes. The server must run the 1.0 build; the console's Valheim version line tells you which build is running.
Connect Valheim servers run 1.0 from the first boot, update on every restart, and let you upload your existing world — so the Deep North push happens on a server that's up when you're not.