So you have a couple choices on the donation thing. You can do it through here and just donate for the download or you can do it through the Patreon. I know you said you're not a fan of the monthly donation but you can actually specify a custom amount on the monthly subscription on the Patreon and just do it for one month and cancel. The advantage of doing that is that you unlock all the custom Patreon stuff over there as long as you donate $10 or more. Long as you cancel before the 1st of the next month, you wouldn't get charged again. Even if you did get charged again, you can just DM me and i'll refund (i'm not in the business of trying to screw people out of cash). If you try and do something and mess it up over there, again, you can just DM me and we'll figure it out--people do that all the time that are new to Patreon.
One other thing is that the finished version of the game will still be FREE. The idea here is to run this entire thing on donations and that's it. No ads, no cost, all free--forever. I make enough off of it now to fund the project so there's no more cost out of pocket for me. However, if funds run low, sometimes I have to make cuts or just wait a bit longer to save up for things. But for the most part, the donations are covering the costs. Regardless, the game will never cost--ive said that from the beginning and I plan to stick with it.