Upload your existing Valheim world
ValheimGuideMove your Valheim world to Haptic in one drag. No zipping needed.
Find your world files
Press the Windows key + R, paste %userprofile%\AppData\LocalLow\IronGate\Valheim\worlds_local and press Enter.
Your world is two files named after it: YourWorld.fwl and YourWorld.db. Windows often hides file endings, so both can show up as just "YourWorld" while other files show long names. If you are not sure which is which, sort the folder by Type, or turn on File name extensions in the Explorer View menu.
On newer Valheim versions the world can be a folder named after your world instead (with files like _main.53.fwl2 inside). That whole folder is your world.
Drag them into Haptic
On your server, open the Backups card and click Upload World. Creating a new server? Turn on Upload Existing World during setup.
Drag both files into the box together, or drag the whole world folder in. No zipping needed. If you already have an archive, ZIP, RAR, 7Z, and TAR all work.
Confirm the import
Haptic checks the files right away and shows what it found ("Found Valheim world ..."). If something is off, the message tells you exactly which file is missing or what to grab instead.
Your server's current world is backed up first, so you can always go back from the Backups tab.
Start your server
Click Start. Buildings, progression, bosses, and explored areas all come with the world. Characters (inventory, skills, map pins) live on each player's own PC in Valheim and travel with them automatically.
The .fwl holds the world's name and seed; the .db holds everything you built. Valheim needs both. Uploading only one cannot work.
Files ending in _mapTexCache, _heightTexCache, or _forestMaskTexCache are pictures of your map that the game rebuilds automatically. If you pick one, the uploader will point you at the real files.
The world lives on the computer that created it (the host). Ask the host to send you the two files, or the world folder, from the same worlds_local location.
