Hi! I currently have no plans to ship Hive Time on Steam.
As mentioned in the FAQ, I am committed to only releasing Hive Time on platforms that allow pay-what-you-want pricing with a $0 minimum, do not require an account to purchase or play, and do not require a download/launcher client in order to play (the Itch app is cool, though!). If/when Steam gets those features, I'll be happy to consider it.