Unfortunately there is none other than the ones provided by itch.io. I think Steam platform supports it but I'm yet to release this on Steam.
Oh, well that's just sad, I wanted to play the full version :(
Well, it's not complete yet so it's more like a paid version. Please wait until it's available on other platforms or itch.io has more methods of payment.
Ok, thank you. Do you know how long that might take though?
