We will be using a hex editor to extract the save data from the Game Pass save file.

I'm going to use HxD it's free software available at https://mh-nexus.de/en/programs.php navigate to the download page and install or use whatever hex editor you want.

Open File Explorer and go to
I'm assuming the folder path is the same for everyone. If it doesn't work for some reason then go to %appdata%\..\Local\Packages\ and look for the folder name that starts with "DevolverDigital.BallxPit..."

Open the folder with the long name and then open the folder inside that one. You should now see two files like this:


The big file (430 KB for me) is the one we will open in the hex editor. Note that the name might be different for you so just select the file with the long name. Launch HxD and drag the file into the HxD window to open it.

You should see something like this in HxD after opening the file.


We're going to extract the save data by searching for specific strings that indicate the beginning and end of the save data.

Use Ctrl+F with the following search settings:


First search for this to locate the beginning of the save data:

Select the start of the highlighted values.


Now look at the bottom left and remember/write down the offset value, in my case it's A55.


Now search for the end of the save data using this:


Select the end of the highlighted values. Right click and choose "Select block"


Now refer back to the offset value from before that I said to write down, in my case A55, use that as the Start-offset and click OK.


It should have selected all of the save data. Go to File -> Save selection and save it on your Desktop as
Now you have a Steam compatible save file that you can copy into the Steam save directory. Go to and paste the file, overwriting any existing meta1.yankai file.


Launch the game and it should be loadable, choose the first save slot. Note the save slot here will show outdated info until you save the game, but the progress will all be there.

The only thing that doesn't transfer over are achievements so you will have to redo those but they can be earned using the same save, like fusing two balls together even though it's not the "first" time. I haven't tested if the building achievements will trigger on upgrades or if you have to dismantle and reconstruct them.

I don't know if future updates to either version of the game will make this guide outdated. The way I figured it out was by opening the Steam save file in the hex editor to know what hex values are at the start and end. Then I searched for those in the Game Pass save file to locate the save data. I'm not that interested in maintaining a guide so I probably won't know if it doesn't work anymore. But you could try what I did to find the relevant values maybe it just changed slightly.