- Keep on the Borderlands
- AD&D/D&D (Moldvay edition)
- Gamma World
- Star Frontiers
- Marvel Super Heroes
- Indiana Jones (TSR)
- Teenage Mutant Ninja Turtles
- Top Secret SI
Advanced Dungeons & Dragons, 1st Edition
Gamma World, 2nd Edition
Colonial Troopers RPG, and fixed with the starship supplement, though that is another story I'll tell at a later time)
In hindsight Star Frontiers was just too safe and mundane of a setting. It was very generic sci-fi. If it'd taken a more kitchen sink approach like D&D did, throwing in every cool idea from every science fiction novel from HG Wells to Frank Herbert, Larry Niven, Philip K. Dick, Heinlein, and so on then Star Frontiers could have been a really compelling setting. I do like the cover art by Elmore, I might like his Sci-Fi work better than his fantasy.
The Adventures of Indiana Jones Roleplaying Game (TSR)
written before my fondness for this much maligned set. Once you add the Judges Survival Pack it's a pretty nifty game that captures the spirit of the genre. The production values and art were very high quality for its day, and the adventures are quite well written and playable. Someday I'll finish my in depth review of the system itself.
Marvel Super Heroes
Teenage Mutant Ninja Turtles & Other Strangeness
Top Secret SI
Looking back at 2nd edition DnD it's not all that bad, just some aesthetic decisions that were a turn off. It didn't go far enough in redesigning and improving the game. The cover art wasn't as cool as it could have been. 3rd edition is really what 2nd edition should have been, well except the covers I'm not much of a fan of the non-illustrated covers.
During the 90's I didn't play or buy that much RPG stuff. Then 3rd edition DnD came along, rekindled my interest in gaming and I went a little crazy buying and playing all the games I missed like Champions, Call of Cthulhu, Pendragon, Deadlands, and many others.