I can't promise it yet, because i can't decide this alone - but i'd love to! Itch deserves as many games as possible that help give them back a bit of revenue. They did so much for us, with hosting all our free games, so i feel i owe them. Right now, the reality is just that we cannot support launching on more than a single platform, because we are so small. I hope we can change this some time after release on Steam (12 days from now, phew!).