Age of Wonders

Nice tabletop style RPG releases in 1999. The story really isn't all that great but the gameplay, artwork and everything else is really good or it was when it was released.

Centurion Defender of Rome

Another real time strategy game released in the early 90's for the PC Amiga and Sega. I still have my old copy laying around for my Sega and Theme Park as well. This is one of the games I played most as a child until things like Command and Conquer and X-Com were released.

Powermonger

Another game by non other than Bullfrog. They made a lot of good games before they were bought out.
This is a real time strategy game for multiple systems with several releases from 1990-1994.