After submitting the single player scenario The Castle I was asked to make a two player version.
Through a bit of deliberation as to how I would do such a thing, We eventually managed to whip this together. It took about two days of building and testing to get everything to the current state of madness. We hope it pleases you.
In this map, you - as either the Greeks or the Atlanteans - defend your Castle from endless hordes of Myth units, varying in strength from the anubite to the Medusa and Mountain Giant.