How do I implement this? I know I can use save and load functions...
But I was wondering if there is a way to save the game into a file so people can send me theyr saves?
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Use "Browser Invoke Download" action if it's a browser game, or "NWJS Write File" in NWJS export.
Sorry... but where do I find this option on export mode in "NWJS Write File"?
If you are exporting your game for desktop using "NW.JS" option, then you can add NWJS object to your project (the same way you add other objects like Mouse, Touch etc.)
And then use NWJS Write File action.