Wurm Empire

The Wurm Empire was the interstellar empire of the Wurms, possibly ruled by King Ottak, though it was not established whether he was king of the empire. The empire spanned across seventeen solar systems, including the one containing the Valnaxi homeworld.

In an attempt to gain the world's position so that they could invade the rest of the galaxy, the Wurm attacked the Valnaxi and fought them in the Valnaxi-Wurm War, ending in 118 with the defeat and extinction of the Valnaxi. The empire existed even 2,000 years later. (TDA: The Art of Destruction)