A short list from me:
The Settlers (probably the one game I spent most time with, you could keep playing the same game for days with the largest map size)
Turrican II (best music in a video game ever, period)
James Pond II - Robocod (best cutesy platformer)
Championship Manager (the original, the best - the later PC versions have grown too complex and too slow to be fun anymore, IMHO)
SWOS (naturally)
Paradroid 90 (Andrew Braybrook was a genius..ok, he's not dead yet, but he's not coding games anymore
