The $3 is for NSFW art (and isn't $1 since Patreon's billing apparently takes an absurd 70% cut when the transaction is that small). I am more than pleased you liked the game so much, and it's okay not to give anything and just enjoy it (seriously, I am good on money, so treat it as a tip jar more than my source of income). But you might be happy to know the yearly anniversary release is in a month and will be the latest version, free to everyone, with all the patron-password stuff unlocked.