Rhys' quest begins in the world of Landen and it's revisited throughout all three generations.
Lyle's home world is devastated by an unusually harsh winter. The ruins of Orakio's fortress may lead to the solution.
The desert climate of Aridia makes it suitable for cyborg habitation only. It also serves as the central hub for traveling between the worlds. Legends speak of "Laya's Treasure" being buried somewhere in this world.
Draconia is first visited during Ayn's generation where the villages find themselves under siege from Siren's army that pours out of Techna Castle.
Elysium was once the world of pilots, but they vanished over centuries. Now a small band of rebels are plotting their resistance against a recently awakened Lune. Most of Nial's adventure occurs in this world.
This frozen world contains a village of historians and Laya's hometown.
The world of Terminus was so corrupted by evil that its entrances were permanently sealed. Only one city remains in this world.
Orakio banished Lune and his sister Alair to Dahlia 1,000 years ago. They placed themselves, and their army, in a cryogenic sleep until the opportunity to strike arose again.
Laya banished Siren and his army to Azura. 1,000 years of waiting have driven Siren mad and seeking revenge on Laya's descendants.
I've given permission to several other sites to use these maps, even sent them the source files used to create them. PSCave.com, VGMaps.com, and PSAlgo.com are a couple that come to mind. I'm sure other sites have used them without permission. No big deal, the maps are Sega's copyright (not mine) anyway. If you've seen a Phantasy Star III map online chances are I made it back in 2000.