Hello there,
the game will continue to be free here on itch, the steam release will be completely separated and will have an exclusive character and its quest.
yo will you be release your game on G.O.G to? because i cant even get on your game steam page because of a stupid law in my country says i cant have a credit card because of medical reasons but on G.O.G i don't need to jump through hoops just to be able to buy games like yours. p.s i enjoy playing your game it is fun