For example, a few years ago I went back and defeated the Contra series for the Nintendo. I never had a Nintendo as a kid, and could only play Contra at my neighbors house. I never gained enough skill (or hours playing) to actually beat it, though I loved the game. Going back, I obsessively mastered that game and crushed it. And I loved every minute. And it was still hard! Contra, and so many other games from past decades are still amazing games, even if they do not have the most top notch graphics. Like movies, often the top notch graphics (or too much CG) causes the designers to lose sight of good gameplay.
Star Traders RPG has a lot of amazing elements from games from everyone's past--Master of Orion, Sid Meier's Pirates, Nova and others. Many of the games in our pipeline, like Secrets of Steel, will have powerful echoes of legendary fantasy RPGs--ChronoTrigger, Final Fantasy, Shining Force.
What are the games from your past that you still love, and may have even gone back and conquered again and again?