The Eggman Empire is a political body that appears in the Sonic the Hedgehog series. It refers to the totalitarian regime of robots ruled by the infamous Dr. Eggman, and it is the doctor's ultimate goal to have the Eggman Empire encompass the entire earth. Although it has occasionally been established, the Eggman Empire has never managed to hold its ground, and merely refers to the territories Eggman has claimed and plans to claim.