Symbiosis Conquest: Frontier Wars and Conquest2: Vyrium Uprising
Well, I was never good at RTS games like these, which is why I never actually played many of them. But I enjoyed this game immensely and I actually beat the entire story for single player, even though these genres are usually not my forte. For me, it was one of the first games that i've completely played through, actually. I'm really glad there are people out there making it even better, than the gem that it already is. :)