Starcraft is one of the oldest computer strategy games that is still being played up to know. It came out when computers were still Pentium 1. That's what I like most about Starcraft, because it consumes very little resources and thus would run fine on my oldest computers (Pentium 133 Mhz, 32 mb). I'm really amazed at how this game has stood the test of time, as even know, contests both local and international are still being held.
In terms of graphics, it's actually quite decent, and one of the best even during its own time, but even up to know, the graphics are still good.
I highly recommend Starcraft, it's one of the most lasting strategy games I've ever played. Even after so many years of playing it, it's still fun.
Buy this, it's worth the price!