Ive looked at a few sources that have been saying that the first Solarian was a mac game that was then ported to the IIGS (available here)

Solarian II is a pretty important mac game, for archives sake, its predecessor should be catalogued here too. I don't expect finding it will be particularly easy but if anyone has and leads, it would be great to have the game on the garden

Edit - I've glanced over Solarian II's website and noticed it wasn't released publicly, so i guess the IIGS version was a port of the second. My next query is this, what do my fellow gardeners think about writing a site-wide request to Stick Software to let it out on the internet, (if it still exists in any form given its 'class project' status)