Wild Shadow Studios was the original creator and developer of Realm of the Mad God.

The company, based in Los Altos, California, USA, was formed by Alexander Carobus (Alex) and Rob Shillingsburg (Rob), and handled all aspects of management of the game.

As the game grew, Spry Fox joined as co-developers in 2010.

In June 2012 Wild Shadow Studios was acquired by Kabam.