The full game was released in June 2023 and costs 25 USD, it looks like you donated 50 cents when you downloaded the demo (which is optional, because the demo is free).
So I bought the demo? Do I still need to buy the full game? I love the game just wanna know if I need to still is all. From my Itch.io page it has the game under "Owned" games plus, there's a link that doesn't seem to be the demo link. Also note I "Bought" the game for .50 on 2019-10-10 at 09:31:42. When I go to the page it says I can just download it. I don't go to the demo links, it's at the top of the page. I donated the .50 back then to help back the game. I'm disabled so I can't donate much at all but I try to help when I can.
The full game was uploaded on June 2023 so if your itch.io library shows AMAP as "Owned" they probably mean the demo and the files that were already available for free before that date.
We will soon put out a new discount/offer for the full game so you can wait it out a bit ;)
As the other comments/reviews below can attest the full game is very long and is worth the price :)