Atlantis 12500 B.C.

From BoardGameGeek:

"Excalibre Games Simulation of Atlantean Fantasy." "Remnants of an ancient past, flee the path of their destruction." "This 349 series simulation introduces Atlantis as a modern civilization with anti-gravity hovercraft, rockets, lasers and the ultimate weapon. Atlantis warlike and bent on conquest faces the combined but weaker forces of the ancient Greeks in the great sea and powerful Lemurian Empire of Mu in the Pacific. Allied with these forces are the 'gods' of Norse, Egyptian, Mayan and Pacific legends. Time is working against Atlantis, however, as the island is breaking up from strong natural disasters triggered by the use of an ultimate weapon -- so powerful it's use disrupts nature."