Necroworld

The Necroworld is the hollow cemetery planet tended to by the legendary character known as the Necrobot. He transformed the blasted world into a beautiful garden, filled with holographic statues of every living Cybertronian, which he would switch off when the Cybertronian died. Around the bases of the statues, he planted flowers crafted from the residual spark energy of whoever the statue's real-life counterpart was responsible for killing. It is also where "the fortress", the Necrobot's base of operations, can be found.

From space, the planet appears to have two unnamed moons. One, much larger than the other, has its own rings.

Fiction

IDW Generation 1 continuity

The Decepticon Justice Division discovered the planet by complete accident. Since the Necrobot was a neutral party, they ignored him, though Agent 113 attempted to pass the place's coordinates (among other things) to the Autobots by his usual method.

Years later, the crew of the Lost Light finally dug his bullet out of Swerve's shoulder. It had degraded severely by then, but the coordinates managed to survive. With the location in hand, the Lost Light made a detour at the Necroworld to find out what happened to Dominus Ambus, amongst other things. The Not Knowing

Later, a part of the crew returned, following a signal they thought would lead them toward the source of a psychological attack by the Galactic Council. They discovered that the Necroworld was in fact a hollow planet before falling prey to a trap by the D.J.D. allied with Deathsaurus's troops. How Bright Their Frail Deeds The Sun in Flight

Notes

• The proper name of the Necrobot's planet of operations was not given before More than Meets the Eye #51, where it appears as a caption. The place was previously known only by its rather descriptive appellation since #44.