There is no greenlight page or product page at the moment. They will notify us here on Itch when it will be added to Steam, because there has been people copying Raft and trying to get it on Steam. Just stick to the blog on Itch. They'll update us about the game here and here only, until release on Steam.
Glad it finally arrived on Steam! Wishlisted it immediately!
Would it be possible to receive an early unlock / beta key? I'd love to test this game and feature the steam version on my channel: https://www.youtube.com/royalgamer06