At the opening FMV of Xenogears, you can find beginning of life being brought to isolated planet - Ignas. The spaceship or the only one in Xenogears universe. This ship carried the remaining crew of the galactic voyage away from Earth when they found their planet inaccessable and they are in search of another inhabitable planet. Within the ship, it carries a weapon called "Deus" which has the ability of transforming planets into a planet where lifes can be carried on. The crash of Eldridge took place 2000 years ago where Deus has been awaken. It was self-destructed and breaking into parts scattering over the world - the parts have formed major structures of the world - Babel Tower, Zohar, Excalibur 1, Yggdrasil IV and Fort Jasper.