Lots. Lots and lots. Off the top of my head:
-Arcanum (Troika's other game). Granted, it was as well-balanced as the cameraman on the new Battlestar Galactica, the attempt to go either turn-based or real time left both underperforming, and the AI was dumb as toast. But the setting was interesting, the mechanics (balance issues aside) had great potential, and it actually felt like an epic, rip-roaring adventure.
-Anachronox (the other Ion Storm game). A weird sci-fi setting, a memorable cast of characters, and a sense of humor both offbeat and deadpan. What's not to like? Well, the fact that the game as designed was too long and had to be cut in half, leading to a cliffhanger ending for a sequel that never came. Tom Hall said in 2010 that if nothing else happens, in ten years he'd put the rest of the story up on his site for closure, so at least there's that (I for one intend to hold him to it).
-Archimedean Dynasty. Post-apocalyptic Wing Commander with submarines instead of starfighters. I have no idea why this didn't take off.
-Terra Nova (proof that my annoyance extends past the letter A). This was a Looking Glass game. Looking Glass didn't make bad games. But even amongst their fans, few have heard about this one.
-Emperor of the Fading Suns. The AI sucked, okay? I'll be the first to admit that. But the reason it sucked was that this game was complicated. It had actual depth to the strategy, and was the kind of game you could sink your mental teeth into for hours and hours and hours- and this long before Dwarf Fortress and Crusader Kings; Paradox wouldn't even be founded for a few years. The first review I read of it was griping about it's "stratospheric learning curve", and I knew I had to check it out. And is it discussed? Well, I lost the disks somewhere along the line, but I still have the manual. That's the only reason I know I didn't dream it. Even more obnoxiously, it's not available anywhere. The developer is still in business, and still independent; you'd think GOG would be all over it. But no.