HumanitZ: Move Your World to Your Server

• From your own PC: press Win+R, paste %LOCALAPPDATA%\HumanitZ\Saved\SaveGames\SaveList\Default and press Enter. Each world is a folder named after it. A world last saved on versions 1.05 to 1.09 also has a Save_<name>.sav file next to its folder: take both.

• From a Steam Deck or Linux: the same folder is inside the Proton prefix, ~/.steam/steam/steamapps/compatdata/1766060/pfx/drive_c/users/steamuser/AppData/Local/HumanitZ/Saved/SaveGames/SaveList/Default.

• From another host: download the world's folder from HumanitZServer/Saved/SaveGames/SaveList/Default. Its name is the SaveName in the old server's GameServerSettings.ini. A whole backup of the old server works too: we find the world inside it.

Close HumanitZ (or stop the old server) before you copy.

1. Power down your server on My Servers.

2. Open the server's Backups card and click Upload World.

3. Drag your world's folder into the box, or click Choose a folder. A ZIP or TAR.GZ of the folder works too.

4. Click Upload and replace world. Your current world is saved first as Backup before world upload.

5. When the import has finished, power up. Your world loads under its own name.

Creating a new server instead? Switch on Upload Existing World and drop your world in the same way.

• World Save Name is set for you. The server loads the world whose folder name matches it exactly, capital letters included. It takes letters, numbers, dashes and underscores only, so a world named My World becomes My_World, with its files renamed to match.

• Your server keeps its own files: its settings, the Admins, whitelist and ban lists, and its other worlds. A world with the same name as yours is replaced, and it is in the backup.

• A world from versions 1.05 to 1.09 is moved into today's layout, as the game does the first time it saves it.

• The game's own backups come along (the _Backup folder and Save_<name>_BK_.sav). If the main save is empty or damaged, we use the newest backup and tell you which.

• Several worlds in one upload are refused with their names, unless a GameServerSettings.ini in the upload names one of them. Upload the one you want on its own.

• Mods are not installed. Add them with Files, as HumanitZ: Install Mods shows.

• Only if you have nothing else: a lone Save_<name>.sav imports too, but the files that sit beside it in the world's folder stay behind: the characters, and the world's NodeAIData.sav and FoliageData.sav. Upload the whole folder whenever you can.

A world from single-player or a game you hosted keeps the host's character in Host_Offline.sav, and a server does not give that file to anyone by itself. Host guides fix it like this: join your server once, power it down, open humanitz/PlayerIDMapped.txt in the Files card to find your Steam ID and your Epic ID, then rename Host_Offline.sav in humanitz/Saved/SaveGames/SaveList/Default/<your world> to <Steam ID>@<Epic ID>.sav. Keep a copy of the original file.

Your server's world is untouched, and the message says what was wrong:

• "... is empty (0 bytes)" or "... is incomplete": a cloud-sync placeholder, an interrupted download, or a file copied mid-save. Close HumanitZ and copy the folder again.

• "This is an Early Access HumanitZ world": worlds from the TSSGame folder (before February 6, 2026) cannot load on today's game.

• "This world was saved by HumanitZ 1.0 to 1.04" or "... before version 1.05": open it once in the current game on your PC, then upload its folder.

• "This upload has 2 HumanitZ worlds": upload only the folder you want. A world whose main save is empty or incomplete counts too.

• "The uploaded archive has a suspicious compression ratio": HumanitZ saves compress unusually well. Drag the folder in instead (your browser zips it), or upload a ZIP.

• Changing World Save Name after the upload. The server then starts a new, empty world. Set the name back to load yours again.

• Renaming files by hand before you upload. The upload renames everything together.

• Mods missing on the server. A modded world needs the same mods, on the server and for every player.

Ask in Discord or email support@haptic.gg with your world's name and a screenshot of the message under the upload box. We can see the import on our side.