Joiplay does support .exe files, so if it isn't working, I am not sure what is wrong. I only played the original version of the game since this version takes up 4 gigabyte, and I don't have that much free space, so maybe it is an issue exclusive to this version of the game.
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I've downloaded the whole 4 gb file on my phone hoping to play it with joiplay but It doesn't work...They say *could not detect any supported game in the archive* and that's it :(
I've also played .exe games on joiplay without having issues idk about .html, I hope joiplay can do something about this