The first computer which I owned was a Mac Performa 580CD (back when having a CD drive was significant enough to put in the name). My top 10 games from it, in no particular order:

1) MacCricket (still the best cricket game EVER)
2) Realmz (remarkably customizable Forgotten Realms party-based RPG)
3) Harpoon (complex military sim)
4) Star Trek: 25th Anniversary (one of the few games true to the series)
5) Star Trek : Judgment Rites (improved on the original in several ways)
6) Warcraft (yes, I'm old enough to still own a boxed copy of the original!)
7) SimCity 2000 (I did play the original, but this was quite a leap forward)
8) Spaceward Ho! IV (space 4x)
9) Castles: Siege & Conquest (a forerunner to the Total War series, but with a plot!)
10) Conquest of the New World (an epic and gorgeous - for the time - 4X)