If we're going for classics...
- Pool of Radiance
- Eye of the Beholder series
- Daggerfall
- War of the Lance
- Elite (not really strategy, but space exploration)
- Panzer general
- Steel panthers
- Civilization series
- Syndicate
- Laser Squad
- Dune 2000
...but I don't like to look at screenshots. Especially the older games were *really* ugly when compared to games these days. But at the time, it was state of the art.