It was free until the dev put it on Steam, at which point he had to change the price here because Steam has issues with a game being provided on a separate platform at a different price. See the "Update News and future pricing" devlog above.
i remember when he warned everyone a week in advance that they had their last chance to buy it on itch "for any price" before the price had to be matched to the steam price, cos steam policy. as a return of good faith, ill buy the steam version once completed too, for full price
