Mobians live on the planet Mobius. Unlike Overlanders, Mobians tend to be far more open and accepting of other species on the planet. Mobians consist of a large variety of species. Although the dominant species on the planet, Mobians have suffered nearly twelve years under the brutal rule of Dr. Ivo Robotnik and later his alternate-universe self Robo Robotnik, knowing only a brief period of peace following the former's demise. In 3237 however, the Robotnik Empire suffered a series of setbacks, and although it maintains control over most of the planet, many Mobians remain safe in New Mobotropolis and other parts of the world, as Robo Robotnik allowed his regional Sub-Bosses to go unchecked due in part from his fixation on defeating Sonic the Hedgehog.