The Grim Zone is a bleak, desolate town that looks like somewhere out of a horror movie. Apparently the town once thrived until Dr. Robotnik conquered Mobius, then the Zone quickly turned into a lifeless husk of a city. The streets are completely devoid of activity, many buildings are dilapidated and boarded up, and here and there are pits filled with fire. There are a number of factories and industrial complexes in the Grim Zone, but they are all likely Badnik operated. The Grim Zone has appeared in issues 30 and 83 of Sonic the Comic and its only known resident is Metamorphia.