Ar tonelico

The tower of Ar tonelico...a mysterious structure at the center of the known world; a world of floating continents and islands, drifting in a sky high above a seemingly endless sea. The Tower ascends into the sky as far as anyone can see, and disappears far below into the sea. The continents of the known world orbit the Tower in a lazy pattern that somehow brings them nearer or further apart in a regular cycle without ever colliding, only a few ever drifting close enough to nearly touch the Tower itself for a few scant days. From the Tower came the first Reyvateils--songstresses able to commune with the fathomless energy contained within the Tower and turn it into power with song. Song Magic can heal, preserve, and destroy, but Reyvateils are fragile beings dependent on humans for survival in a harsh world full of monsters and the limitations of their own biology, even as humans depend upon the Song Magic of Reyvateils, for the untamed parts of the floating lands are filled with monsters and other, more ancient dangers. To travel this world, humanity discovered the secrets of flight, crafting airships of greater and greater complexity as technology advances. But no airship nor climber has ever been able to approach the upper reaches of the Tower of Ar tonelico without falling victim to electrical storms or terrible monsters. Enter the world of Ar tonelico as a lone adventurer, arriving in the city of Melodia with only a scant handful of supplies and your trusty weapon at your side. - A take on the world of Ar tonelico because I couldn't find any on AID; fundamentally a new setting with new characters you could consider an unofficial "fourth game" but with enough similarities to the first game that you could probably make your own story cards for the major characters with a little wiki magic, if you wanted!