How to Transfer Saves and Update Pokémon Infinite Fusion Without Losing Progress

How to update Pokémon Infinite Fusion without losing your progress: back up your save file first, then run INSTALL_OR_UPDATE.bat in your game folder on PC — or rename your old folder and re-extract the new version on Android. Your save lives outside the main game files on PC, so a clean update keeps it safe — but only if you protect it before you start.

This guide covers the full Pokémon Infinite Fusion save file location on Windows, Mac, Steam Deck, and Android, the exact steps to update to version 6.7.2 on every platform, how to transfer saves between devices, and fixes for the most common save and update problems. One read-through will make sure you never lose a save again.

Quick note: pokemon-infinitefusions.site is an unofficial fan guide. We are not affiliated with Nintendo, Game Freak, or the creators of Pokémon Infinite Fusion.

Where Are Pokémon Infinite Fusion Save Files Stored?

The first thing to know about the Pokémon Infinite Fusion save file location is that it is NOT inside your game folder on PC. The game stores saves in your Windows user profile, completely separate from the installation files. That separation is why updating the game rarely touches your saves — and why deleting the wrong folder can still ruin everything.

Windows save location

On modern versions of the game (5.0 and above), your saves live at:

C:\Users\YOURNAME\AppData\Roaming\infinitefusion

Replace YOURNAME with your Windows username. The save files are named Game.rxdata (or “File A.rxdata” depending on the save slot you used) — RPG Maker XP uses the .rxdata format. Keybindings are stored in the same folder. There is a shortcut in your game installation folder that opens this location directly, which is the fastest way to find it without typing the path.

One critical rule: you cannot change this save path. Even if you play from a different drive or a USB stick, the game always reads and writes saves in this exact folder.

Mac save location

On Mac, the game runs through Wine, so the save sits inside the Wine bottle:

/Users/YOURNAME/.wine/drive_c/users/YOURNAME/AppData/Roaming/infinitefusion

To reach it, open Finder, press Command + Shift + G, and paste the path with your own username. You can back up or transfer saves from this location just like on Windows.

Steam Deck save location

On Steam Deck, the game runs inside a Proton/Wine prefix. The save path looks like this:

home/.steam/steam/steamapps/compatdata/[game ID]/pfx/drive_c/users/steamuser/Application Data/infinitefusion

To find the right numbered folder under compatdata, sort by creation date — the most recent folder is usually your Infinite Fusion install. Inside, follow pfx → drive_c → users → steamuser → Application Data → infinitefusion. Your save files will be named “File A.rxdata” or similar, matching the save slot you used.

Android save location

Android works differently: because the game runs through JoiPlay as an RPG Maker XP title, saves are stored as .rxdata files inside the game folder itself — typically named Save01.rxdata through Save04.rxdata, or “File A.rxdata” in some setups. Knowing this matters for updates, because the Android update method replaces the entire game folder (see below).

How to Back Up Your Save Before Updating

Learning how to back up Pokémon Infinite Fusion saves takes 30 seconds and prevents the worst feeling in gaming: losing 50 hours of progress. Do this before every update, and periodically even when you are not updating.

Windows backup (the safe method)

• Close the game completely. Never copy save files while the game is running.
• Open the save folder using the shortcut in your game installation folder, or navigate to C:\Users\YOURNAME\AppData\Roaming\infinitefusion.
• Copy every .rxdata file (Game.rxdata / File A.rxdata and any other slots) to a backup folder — your Desktop, Documents, or a cloud drive like Google Drive or OneDrive.
• Date the backup folder (e.g. “infinitefusion-backup-2026-10-15”) so you can tell backups apart later.

That is the entire procedure. If anything goes wrong during an update, you can restore by copying the files back into the same folder. If you ever need a fresh install, download Pokémon Infinite Fusion from our download page, then drop your backed-up saves back in place before your first launch.

Android backup

On Android, open your file manager and navigate to your game folder. Copy every SaveXX.rxdata file (and File A.rxdata if present) into a separate backup folder on your phone, then upload that folder to Google Drive. There is no cloud save system on Android — this manual backup is your only safety net, especially before JoiPlay or plugin updates.

How to Update Pokémon Infinite Fusion on PC

Now for the main question: how to update Pokémon Infinite Fusion to the latest version. The current version is 6.7.2, and updating on PC is straightforward if your version is 6.6.0 or newer.

The standard update (version 6.6.0 and above)

• Back up your save files using the steps above. Do not skip this.
• Open your game folder — wherever you installed Infinite Fusion.
• Run INSTALL_OR_UPDATE.bat. This is the built-in updater packaged with the game. Double-click it and wait for the update process to finish — it checks for the latest version and downloads the changes automatically.
• Launch the game normally and check the title screen shows version 6.7.2.
• Load your save and confirm your progress is intact before you delete anything.

The whole process usually takes a few minutes. If you are updating from a much older version (below 6.6.0), the updater can be buggy — in that case, do a fresh install in a new folder and copy your save files over instead.

After updating: fix missing sprites

It is normal for sprites to look broken right after an update. Fix it in-game:

• Go to any Pokémon Center and find the Update Man.
• Open Advanced Options.
• Select Clear Sprite Cache.

This refreshes the sprite loading system without deleting your downloaded sprites. The game will reload them as needed. If the first launch after updating shows a black screen for a while, be patient — the game is indexing sprites, and on slower PCs this can take several minutes.

How to Update Pokémon Infinite Fusion on Android

Here is the honest answer to how to update Pokémon Infinite Fusion on Android: there is no auto-updater. The game was built for PC, and the Android version (running through JoiPlay) cannot update itself. You have to reinstall the new version manually and move your saves across. It sounds scary, but it is a five-minute job if you follow the order exactly.

• Back up your saves. Copy every .rxdata save file out of your current game folder into a safe backup location.
• Rename your current game folder to something like InfiniteFusionAndroidOld. Do this BEFORE extracting the new version, so the new files never mix with the old ones.
• Download the latest version of the game and extract it into a fresh folder. If you need a fresh copy, check our download Pokémon Infinite Fusion page.
• Move your save files into the new folder. Copy every save file from the old folder into the new game folder, next to Game.exe. Use your file manager app for this, not a RAR tool.
• Remove the old game from JoiPlay, then add Game.exe from the new folder.
• Launch and verify. Load your save and confirm your progress. Only then delete the old folder.

Keep the old folder until you have confirmed the new version works. That one habit makes Android updates stress-free. One more Android tip: after updating, disable the “Download Sprites” option in the game’s settings if you get sprite errors — it improves stability on many phones.

How to Transfer Saves Between Devices

Want to transfer your Pokémon Infinite Fusion save from PC to Android, or from your old laptop to a Steam Deck? It works, with one rule: the save file must land in the correct path for the destination platform. The game will always look in its fixed save location, no matter where you put the game files.

PC to PC (Windows to Windows)

• Copy Game.rxdata (and any other .rxdata files) from C:\Users\OLDNAME\AppData\Roaming\infinitefusion on the old PC.
• Paste them into C:\Users\NEWNAME\AppData\Roaming\infinitefusion on the new PC.
• Launch the game — your save appears in the continue screen.

PC to Android

• Copy the .rxdata save files from the PC save folder.
• Send them to your phone — email them to yourself, use Google Drive, or connect via USB.
• Place them in the Android game folder, next to Game.exe, keeping the exact filenames (for example “File A.rxdata” — do not rename it, not even to File_A.rxdata).
• Add the game to JoiPlay if you have not already, and launch it.

Android to PC

Reverse the process: copy the .rxdata files out of the Android game folder, move them to your PC, and drop them into C:\Users\YOURNAME\AppData\Roaming\infinitefusion. Launch the game and continue. This works because the save format is the same — it is just stored in different places on each platform.

PC to Steam Deck

Copy the saves from your PC’s AppData folder and place them in the Deck’s save path (home/.steam/steam/steamapps/compatdata/[game ID]/pfx/drive_c/users/steamuser/Application Data/infinitefusion). You can transfer via USB drive, an SD card, or a cloud folder. One caution: saves from a much newer or older game version than the Deck install can fail to load — keep both devices on 6.7.2.

Save and Update Troubleshooting

Even careful players hit errors. Here are the fixes for the most common Pokémon Infinite Fusion save problems, based on the community’s experience:

“Incompatible marshal file” or Script ‘‘ error

This means your save file is incompatible with the installed game version — usually because it is corrupt or far too old. Try loading a backup from before the update. If you have no backup, there is no fix: the save cannot be repaired. This is exactly why the backup step matters.

Save does not appear after updating

Nine times out of ten, the save file is fine — it is just in the wrong place. Confirm the .rxdata files are in the exact save path for your platform (see the locations above). On PC, remember the game ignores saves placed inside the game folder. On Android, remember saves must sit next to Game.exe. Also check that filenames are exact — “File A.rxdata” with the space, not renamed.

Android: HTTP error or compile error after updating

An HTTP error right after updating almost always means the wrong files were installed — reinstall JoiPlay and the RPG Maker plugin from the versions recommended in the current Android setup guide, then re-add Game.exe. A compile error (game not supported) means your phone may be incompatible; try setting the engine type to RPG Maker (mkxp-z) in JoiPlay’s game settings (long-press the game icon, then Edit).

Wild encounters broke after updating

If you updated the game and wild encounters stopped working — especially on a randomized run — visit the man in the black suit on the second floor of any Pokémon Center and choose the option to reshuffle wild Pokémon. This re-randomizes encounters for the new version.

Game is slow or black screen on first launch after update

This is normal. After an update, the game indexes and sorts thousands of sprite files on first launch, which can take several minutes depending on your PC and internet. Do not force-close it. If it persists beyond 10 minutes, clear the sprite cache via the Update Man (instructions above).

FAQ: Transferring Saves and Updating Pokémon Infinite Fusion

Where is the Pokémon Infinite Fusion save file location on PC?

At C:\Users\YOURNAME\AppData\Roaming\infinitefusion (replace YOURNAME with your Windows username). The save files use the .rxdata format. There is a shortcut in your game installation folder that opens this location directly.

What is the latest version of Pokémon Infinite Fusion?

Version 6.7.2 is the latest real version. There is no version 8 or 8.7 — if you see those numbers on a download site, the site is not trustworthy. Always update from community-verified sources, and run INSTALL_OR_UPDATE.bat to patch an existing install.

Can I transfer my Pokémon Infinite Fusion save from PC to Android?

Yes. Copy the .rxdata save files from C:\Users\YOURNAME\AppData\Roaming\infinitefusion on your PC, move them to your phone, and place them in the Android game folder next to Game.exe with the exact same filenames. Then re-add the game to JoiPlay.

Will updating the game delete my save?

Not if you update correctly. On PC, saves live outside the game folder, so running INSTALL_OR_UPDATE.bat leaves them untouched. On Android, you must move your saves into the new game folder yourself. Either way, back up your saves before updating — it takes 30 seconds and removes all risk.

Can I use an old save on the latest version?

Saves from recent versions (5.x and 6.x) generally load fine on 6.7.2. Very old saves (from version 4.x) are not compatible — the story and data structure changed too much. If you get a marshal error, the save is incompatible and cannot be repaired.

Conclusion: Your Save Protection Checklist

Protecting your progress in Pokémon Infinite Fusion comes down to three habits: know your save file location, back up your saves before every update, and update properly — INSTALL_OR_UPDATE.bat on PC, folder-rename method on Android. Follow this guide once and you will never lose a save to an update again. Ready for the latest version? Download Pokémon Infinite Fusion 6.7.2 and play with confidence.