Elite on the C=64. I crawled out of grades 9 and 10 with 52% averages because of that game. I wish Elite 2: Frontier had worked out, but it really didn't at all.
And yeah, I had Star Master and Star Raiders on the 2600 too:) Can't believe how many hours could be lost to such simple games back then.
The combat mechanics are obviously way different, but I think Pirates! and the Uncharted Waters series would appeal to old school trading game players as well.
