Credits:
@Ravage
@Letti42

So basically you need to Auto-Feature an applab project that stores data for your game. Then you need to use a server to send data as pixels and decrypt the pixel data from a gamelab to the applab one. (Don't ask me how to do that) Then put that data into a keyvalue. I haven't figured out how to send data from a gamelab project to an applab one but im pretty sure you just switch do the same method but switch the sender/reciever. Also, I'm not entirely sure this can work but it's worth a shot.