seeking similar games to starcraft

why dont you try the world of warcraft. its quite good apparently

You could try Warcraft3. The graphics are much better then 1 and 2 with a fairly smooth storyline. C&C and the Red Alert series are good, although the graphics are dated, and you would have to find a patch for Win XP. Tiberium Sun and Tiberium Sun Firestorm are pretty good, have good graphics and work with Win XP. I seem to recall that EA Games has the entire first 10 years of C&C on DVD for about $40, and has been modified to where the games work on Win XP without needing a patch. My understanding is that when those games were ported over, that for some reason the lead-in videos were left out although the actual game is still intact. I haven't been following the new stuff, so can't help there.

Do u ever try Warlord:battlecry II/III. Try this game and give your comment.

You can try command & conquer. It a strategy game with many side, add on and version. I start playing this game since 1998.