Umm.. remember how most games required flash back in the day? Soo... I was wondering if I could try to make a game in PowerPoint which will require PowerPoint to run the game. Is it ok?

as long as it can be obtained through itch.io

Bro you just remembered me of the era I just created games in PowerPoint. The good old days! I would continue to do it for more time now but still, that's actually pretty nostalgic. If I get to find your game, I can assure you I'll play it and rate it! Bonus for the extra effort!

I think you could create a zip file / rar file, put your Powerpoint in and then submit it as a downloadable file. It might not get as many plays as a browser version may get, but I don't think there's a way to actually have a PowerPoint in itch.io.  Maybe you could try and put the Powerpoint in a zip file? Idk. If you try that, make sure to create a backup of your game, just to be safe.

Hope this helps you out! Whenever you get to finish your game, feel free to ask me to play it / rate it.

:D

if it can be uploaded to itch then hell yeah