Valheim 1.0: The Viking Journey Finally Reaches Full Release ⚔️
After more than five years in Early Access, Valheim is finally approaching one of the biggest moments in its history.
Valheim 1.0 launches on September 9, 2026, bringing the game out of Early Access and completing its biome progression with the long-awaited Deep North. The full release will also expand Valheim to PlayStation 5 and Nintendo Switch 2 alongside its existing platforms, with full crossplay between all supported systems.
For existing players, however, a major update always raises the same questions. Do you need to start a new world? Will your old saves still work? What happens to dedicated servers? And will your carefully modded Viking settlement survive the transition to 1.0?
Iron Gate has now answered many of those questions, so here is what you need to know before launch.
Do You Need a New World for Valheim 1.0? 🌍
No. Existing Valheim worlds will continue to work after the 1.0 update, and your saves will remain exactly where you left them.
There is one important catch.
New biome generation only works correctly in areas of the world that have not yet been explored. This is how major Valheim updates have traditionally handled newly generated content, and 1.0 will be no different.
That means players with long-running worlds can continue their adventures, but extensively explored maps may not provide the ideal experience for discovering everything introduced with the update.
Iron Gate therefore recommends starting a completely new playthrough for Valheim 1.0.
You can take an existing character and head directly toward the Deep North. The developers simply believe starting again will provide the best overall experience.
For groups that have spent hundreds of hours building enormous settlements, that is at least good news: your existing world is not being wiped.
The Deep North Takes Center Stage ❄️
The Deep North is the major new biome arriving with Valheim 1.0 and represents the final piece of the biome progression Iron Gate originally envisioned for the game.
Players can expect new enemies, resources, equipment and building possibilities as they venture into Valheim’s frozen northern reaches. Iron Gate has confirmed that the 1.0 update is primarily focused on the Deep North rather than a major overhaul of existing biomes.
One area that will not receive a dedicated overhaul is the Ocean biome.
There will be some additional content elsewhere in Valheim, but Iron Gate specifically says that 1.0 does not contain an Ocean-focused update.
Achievements Are Finally Coming 🏆
Valheim 1.0 will introduce achievements, but veterans should know that years of previous adventures will not automatically unlock them.
Achievement tracking begins once you install version 1.0.
For example, if an achievement requires defeating Eikthyr, killing him hundreds of times during Early Access will not count. You will need to defeat him again after installing 1.0.
Iron Gate is also taking cheating seriously when it comes to achievements.
Most developer commands will flag a character and world as cheated and permanently prevent achievements from being unlocked there. Some commands, such as "freefly", are exceptions, while spawned items will themselves be marked.
Picking up a cheated item can temporarily prevent an otherwise legitimate character from earning achievements until those items are removed. Certain world modifiers, including hammer mode, can also temporarily disable achievement eligibility.
So if achievement hunting matters to you, keeping a clean world and character will become considerably more important after September 9.
What Happens to Mods in Valheim 1.0? 🛠️
This is where players running heavily modified worlds should be more careful.
Valheim still does not have official mod support, and Iron Gate cannot guarantee that existing mods will work immediately after the 1.0 update.
As with previous major updates, mod developers may need time to update their projects for compatibility with the new version.
There will also be no Steam Workshop integration with Valheim 1.0 and no official mod support on consoles.
If your server relies heavily on mods, it may therefore be worth checking compatibility before immediately updating an important existing world.
Dedicated Servers Stay at 10 Players 🖥️
Valheim 1.0 does not change the game’s multiplayer scale.
Servers will continue to support between 1 and 10 players, meaning existing groups do not need to reorganize their communities around a new player limit.
For multiplayer groups, dedicated servers remain particularly useful because the world can stay online independently of whoever originally created it. Instead of waiting for one specific player to host the session, everyone can return to the same persistent world whenever they want.
And with the arrival of 1.0, those groups will have more platforms to play from than ever before.
Full Crossplay Across All Platforms 🎮
Valheim 1.0 will be available across a surprisingly broad range of platforms.
At launch, Valheim will be available on Steam for Windows, Linux and Mac, the Mac App Store, Humble Store and Microsoft Store, alongside Xbox One, Xbox Series X|S, PlayStation 5 and Nintendo Switch 2.
More importantly for multiplayer groups, crossplay will work between all platforms.
That means PC, Xbox, PlayStation and Nintendo Switch 2 players can all explore the same Viking world together.
Cross-platform save progression is more limited. Xbox players can access their saves on PC when using the Microsoft Store version, but Iron Gate says there will otherwise be no general cross-platform synchronization of save files.
Valheim 1.0 Also Brings Performance Improvements ⚙️
Players hoping that 1.0 will magically fix performance problems around enormous player-built settlements should keep expectations realistic.
Iron Gate says large builds in particular will not see a dramatic improvement from the optimizations included at launch.
There are nevertheless several technical improvements coming with 1.0, including reduced microstuttering when zones are loaded into and out of memory and faster saving. The studio also intends to continue optimizing Valheim after release.
Considering what some Valheim players have managed to construct over the years, the engine probably deserves a small Viking funeral for everything the community has put it through.
What Happens After Valheim 1.0?
September 9 does not mean development suddenly stops.
Iron Gate says it plans to continue improving Valheim with bug fixes and quality-of-life updates after the full release. What remains uncertain is how long that support will continue and whether additional major content will eventually arrive after 1.0.
For now, the focus is firmly on completing the journey that began when Valheim entered Early Access in February 2021.
Existing worlds survive. Dedicated servers remain. Crossplay expands across every supported platform. And for players who want to experience Valheim as Iron Gate now intends it from beginning to end, September 9 might be the perfect excuse to gather the old Viking crew and start again.
Get Valheim on Steam. Gather your crew, prepare your gear, and get ready for the journey into the Deep North.