Hi. Unfortunately, this isn’t our restriction. Since August of last year, itch hasn’t accepted payments for NSFW content through anything except PayPal. We were affected by this ourselves.
In the near future, we’ll look into adding a one-time purchase option on Patreon, SubscribeStar, and Boosty. We’re also currently preparing the Steam release, but the game will come out there closer to spring 2027.