Allumeria is a co-op survival world you build into over a long run, and like most host-based co-op the world exists on exactly one machine. When that person is busy, the world is closed.

Moving it is easy once you know which of two folders is the live one, and once you avoid the single nesting mistake that makes a perfectly good world invisible.

Close the Game Properly First

Before anything else: save and quit to the main menu, then fully close Allumeria. Not Alt+F4.

Copying files while the game is still writing to them is how worlds get corrupted. This costs ten seconds and it is the difference between a clean handover and an unrecoverable world.

Where Does Allumeria Save Worlds?

Start here:

%APPDATA%\Allumeria

If there is no saves folder inside, try:

%USERPROFILE%\Documents\My Games\Allumeria

Whichever one has a saves folder is the live one. Open saves and you will find each world in its own folder, named after the world.

Which Folder Is Which World?

Two ways:

  • Open the world’s info.json for its display name and saveTime.
  • Or sort saves by Date modified - the world you just played is the newest.

Characters Do Not Travel

Worth knowing before anyone panics: characters live in %APPDATA%\Allumeria\characters and stay on each player’s own machine.

Only the world folder moves. Your character, their character, everyone’s progress stays where it is, and nobody has to rebuild anything when hosting changes hands. That makes Allumeria one of the cleaner games to pass around.

The Nesting Mistake

When the new host extracts the zip, the world folder has to sit directly inside saves:

correct:   ...\Allumeria\saves\<world-name>\info.json
wrong:     ...\Allumeria\saves\<world-name>\<world-name>\info.json

Zipping tools love to add that extra layer. If a transferred world does not appear in the list, this is the first thing to check - the world is fine, it is just one folder too deep.

How to Share an Allumeria World Manually

  1. Save and quit to the main menu, then fully close Allumeria.
  2. Open %APPDATA%\Allumeria - or Documents\My Games\Allumeria, whichever has saves.
  3. Open saves and identify your world via info.json or by Date modified.
  4. Right-click the world folder and choose Send to -> Compressed (zipped) folder. Zip the folder, not the files inside it.
  5. Send the .zip to the new host - Discord, USB, cloud drive, whatever.
  6. New host: extract into their own %APPDATA%\Allumeria\saves\ so the world folder sits directly inside saves.
  7. New host: launch Allumeria, load the world, invite the group. Whoever loads the world is the host.

Then repeat every session.

How SaveSync Handles It

SaveSync syncs the world folder across every PC in the group automatically, into the right place, with no zipping and no nesting mistakes.

  1. Click Allumeria in the list on the left to open its save management page.
  2. Click “+ New Save” (top right).
  3. Select your world from the dialog and click “Create Save”.
  4. Wait for the green checkmark.
  5. Click the share icon, search your friend’s Steam username, click “Share”.
  6. They click “Activate” - then they can host it and the world syncs automatically.

It also keeps a full save history, so you can see who uploaded what and when, and revert to an earlier state if a session goes badly.

Keep the World Open

A world built over weeks should not be unreachable because one person is away. Close the game cleanly, zip the folder rather than its contents, and hosting can sit with whoever is free.

New here? Start with Getting Started with SaveSync. Also useful: how to switch host in co-op games and how to play co-op when the host is offline.