Warworld

The Warworld is a starship in the Marvel Comics portion of the Generation 2 continuity family.

That's no moon! That's a... Wait, we already did that joke.

The Warworld is a vast, spherical Decepticon battle cruiser created by Bludgeon. It is heavily armed and has a large bridge window covering most of its front side.

Fiction

Marvel comics continuity

Man, I hope they impale that little ship on their giant Bat'leth.

Bludgeon's purpose for creating the Warworld was as a ship for stealing energy and other resources throughout space. It was origanally his flagship and host to his army of Decepticon clones.

When Megatron battled and destroyed Bludgeon, he took command of the crew and ship. The Warworld was involved in many Autobot conflicts.

Starscream stole the Matrix and used its power to combine himself with the Warworld. He reshaped its interior, battled Jhiaxus's troops, and tortured Megatron and Optimus Prime. But the Matrix's essence started to turn him from his evil ways. Starscream was so scared of becoming good that he did not put up any resistance when Optimus Prime and Megatron took the Matrix away from him.

Note: The general look of the Warworld tended to change as the series progressed. In-fiction, this could be the result of its nature as a continuously-growing patchwork of stolen alien technology. In reality, it's what you get when three very different artists depict a massive glob of sprawling machinery.

From Teletraan I: The Transformers Wiki, a Wikia wiki.