The problem with Simon 3d's graphics are the game came out in 2002, and looked like it came out in 1997. And actually the graphic design on quake, mdk, etc trump it in style, if not in polygons. So it doesn't really count as an early 3d game, and even looks bad when compared to them. All of that could be forgiven if it didn't have framerate problems, but I guess that could be chalked up to the old game on modern system problem.

There is some good gameplay there, but it is quite buried, under a lot of walking across uninteresting terrain, bad minigames, an overlong and patronizing tutorial, and a lot of jokes which fall flat. I hated it before finishing the tutorial, once you get through there it is better, but still pretty poor. It's good enough regardless that I plan on finishing it at some point, but I don't know when :)

Already own :

Beyond Divinity
Divine Divinity

Bought :

Feeble Files, The
Personal Nightmare
Simon the Sorcerer
Simon the Sorcerer 2
Waxworks

and as a bonus :

Gobliiins pack