Unfortunately not. I was able to find an old CD copy on Amazon, but I'm sure there are other sources. Alternatively, if you haven't played Zeus, it's available on GOG along with Poseidon (the expansion) for cheap.

Not exactly Sim City, but I was delighted to discover Emperor: Rise of the Middle Kingdom... If you ever played Zeus, it was the next (and last) Impressions Citybuilder. Good times have now been had.