Missionforce: Cyberstorm
Total Annihilation
Tzar
Ground Control
If anyone else have played these four games, and remember these three games as well as I do, well, we might make good friends. It's nigh impossible to find someone who knows about total annihilation or ground contro and both of them were fairly popular, now to find someone who's played cyberstorm or Tzar, oh my...
Still, all are games I played when very young and set the very foundation for the games I play, I've got 2 of the four installed on my laptop, and a third on CD's (Tzar however, was lost in moving).
Had the CD's since I was 8, and I still remember my dad getting me ground control when I was 9, he clearly had no idea what to buy for a 9 year old but I'm happy he did.
As a side note, if you have any interest in mech strategy games, check out cyberstorm, that game is amazing even with it's age, playing it right now actually.