Can you try going into the "bin" folder, copy one of the executables (according to whether the OS is 32-bit or 64-bit), place it in the root folder alongside the "game.pck" file, rename the executable to just "game", then try running that? I think that might get it working.
I tried this and it returned the same error. As soon as I can I will try to install the Itch.io launcher app and run the game again, to find out if the same error occurs or not. Thanks for answering.
