REGARDING STEAM KEYS FOR ITCH PURCHASERS:
Those who have bought the game on itch io can now redeem a key for steam.
This can be found on the purchase page, which can be found by logging into itch, going to your game library and clicking Hero's Hour, or by finding the email you were originally sent when you purchased the game.
Reviews on steam from users who haven't paid for the game will count for less, but this can be counteracted if you pick up the Supporter Edition DLC.