Hi Hesperes,
Thanks for your interest in the game! To answer your Mac question, uploading a Mac version on Steam would require a number of time and money-consuming steps such as:
- buying a macbook with Catalina or later (neither of us own one right now)
- filing papers to get a developer license on Apple store
- pay $100 every year to keep that license
- having the time to support any Mac user that may run into issues
Mac sales on itch account for anywhere between 1-2% of sales. As such, we can't justify investing that much manpower for such a small userbase on Steam, where at any given moment, Apple may release an update that will completely break the game on Mac. The more time pass, the less the $100/year will make sense for us, and the more likely someone is to run into that an OS update-related issue.
We can, however, offer the game on itchio where we could provide assistance for the odd Mac user who might contact us once in a blue moon for help as opposed to dozens of troubled Steam users --that we can afford.
Here's what we can offer: if you buy the game on Steam when it comes out, email us at smb.vnproject@gmail.com with a copy of the Steam email receipt of The Symbiant and we will send you an itchio key.