This is just an amazing game.

I still play it quite regularly. I have an old Mac mini in a back room that I keep explicitly for that purpose. When the original machine gave up the ghost, I shelled out a couple of hundred bucks for a "new" obsolete mac mini just to be able to keep playing.

And I will do it again when this one dies. Such a great game. I also play Civ II on this machine occasionally.

Part of the magic is how simple the game play is relative to more modern games.