As stated at the bottom of the page, next to the purchase button:
"If you want to buy a full copy of the Android version, you can do so here. Desktop versions are not currently available for sale on Itch, for noncompetition reasons."
For the Desktop versions, please buy the game on Steam for a one-time payment.
Yeah but here's the kicker. I JUST BOUGHT this through the TOP of the page BUY NOW button. Where it says NOTHING about it only being Android until I scroll down to the very bottom to a second button that then tells me it's Android. Real trashy to not have anything up top mentioning Android only by that top button. It literally says 'A downloadable game for Windows, macOS, and Android' then the Buy Now button.... why would I or anybody else think we'd have to scroll down to a SECOND button where it tells us this is only Android.