it appears the only other game like them readily available for modern systems is Dead Cyborg
... What are you defining as modern systems here? I admit I haven't been following the adventure scene in the past few years, but there has BEEN an active niche adventure scene for a very long time, largely ignored by the mainstream media.
Anyway, there are multiple communities dedicated exclusively to adventure games of all sorts, Myst-like or not. try justadventure.com or adventuregamers.com for starters
Well, first of all, thank you for reading this thread.
When I say modern systems, I'm putting an emphasis on modern PC's and Macs; the ones I know of were for the older computers, which, in the case of Macs at least, won't work on the newer ones.
I'll take a look.
EDIT: It appears that justadventure.com, at least, is dedicated to fans of the games, as opposed to the developers, which is what I'm looking for.