The Forge

The Forge is a mobile space station capable of terraforming. It was used to create worlds or alter them. Its capability as a superweapon was discovered shortly before the First Mech War. During the war, The Forge was used as a capital ship. It is one of the only mechanical things that was immune to the Mech virus. It was lost above Earth 65 million Earth years ago.

Construction
The Terra Forge was originally a mobile terraformer, but it grew too large. The Forge was proposed when the Terra Forge stopped travelling. The Forge was built as a spaceship-like vessel. The Forge was completed roughly 66 Million Earth years ago in the Omega Nebula.

Service as a Terraformer
The Forge was used to create planets so the Phantom Navy could set up a quick defensive position if a system was attacked. It was also used to create gravitational fields to prevent large objects from hitting Phantom planets. It was also capable of creating a disturbance in stars, which could potentially create a supernova, though this was used only twice. One of those two times was an accident.

Service in the First Mech War
The First Mech War, which signaled the downfall of the Phantom Empire, saw the Forge being used as a superweapon. The first time this was used was in the Zebulon incident, in which the planet Zebulon was hit with a beam at 5%. Still, the atmosphere blew off into space. The Forge was later used to destroy the Mech's homebase of the Terra Forge. The battle lasted a full week. The Terra Forge was the size of a small star. It took seven blasts on full power to destroy the Terra Forge.

The Forge was used five more times to melt planets and another time in the Crab Incident, in which an entire star was destroyed, creating the Crab Nebula. This, however, weakened the Forge.

Destruction
By 65 MYA, the Phantoms had mostly retreated to their homeworld near the Galactic Core. Mostly retreated. The Forge actively began destroying Mech infested worlds, taking down four Mech Installations (which are artificial planets). However, the Forge began to fall apart, weakened by the war lasting for millenia. The Forge's engines gave out above Earth and its orbit began to decay. The engines were too large to fix in a few days. It was forced to send a distress beacon out. The Mechs intercepted this beacon and saw the opportunity to strike against the last piece of Phantom resistance and the device that has destroyed so much of their land.

The Mechs breached the hull of the ship and manually began to implant their virus onto the Forge. The Phantoms launched a blast into space, weakening the main gun so the Mechs couldn't destroy a planet with so much potential. The station crashed in the Yucatan Peninsula, creating a catastrophic mass extinction, but the planet was saved from The Forge.