We have several levels of buying on itch. Exactly the same as on Patreon, where the game is sold through a subscription system, but each update there has more content. To balance the versions for itch and patron, we can change the price for iche depending on the state of the game and its content. Here everything is sold once, unlike the patreon, and the game is present here not because of money, but because of greater audience coverage. The fundamental platform that gives us a constant opportunity to develop is still a patreon, and so that people don't feel deprived, we are trying to balance all this.
The same is written in the description: the patreon version and the itch version are different, where the patreon version has more content than the itch. And the people who paid for the game on itch still get versions, as it was before, so I don't quite understand what the dissatisfaction is. It's just that an intermediate price of 17 was added to 6, 12 and 25 dollars, which in general did not change the picture much, and people still get a new update every 10 days.