Hi,
Initially the game was available on itch.io, there was always a demo, at the beginning we never promised any keys, because App Lab wasn't announced, and we weren’t sure about the Steam version either. Game was sold “at it was” with a small roadmap and update plans.
Keys are a bonus, a “thank you gift” for our supporters. It’s not a cross-buy. Since March 11 you can make a choice of your favourite platform. If you intend to spend $15, you can check a demo on Steam or sideload a demo from SideQuest to check the performance and gameplay.
At this moment it’s like all other games on multiple storefronts – if you don’t like Steam, you purchase games on GOG or Epic.