Here is a small FAQ, feel free to ask any question that is not in the list.
Q: Will there be any Mac / Linux support ?
A: Yes! This is planned for late June.
Q: Can I get a Steam key if I buy the game on itch.io ?
A: Yes! Steam keys will be available as soon as possible (probably a few days after the steam release).
Q: Is or will there be Multiplayer?
A: No, the game is and will remain singleplayer.
Q: Is there a roadmap? Which features will be implemented?
A: Yes! https://trello.com/b/VZ2LWnRS/stormland-public-roadmap
Q: When can I vote for ideas on the roadmap?
A: You can vote when you want, just connect to your trello account (or create one if needed), then click on a card and you'll see a button to vote.