Chaotic is a Danish

Denmark

Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...

 trading card game brought to the United States by Chaotic USA and 4Kids Entertainment

4Kids Entertainment

4Kids Entertainment is an American film and television production company in bankruptcy since April 2011. It is known for English-dubbing Japanese anime and specializing in the acquisition, production and licensing of children's entertainment around the United States...

, and distributed by TC Digital Games. It was released along with the open beta version of the online game on October 24, 2007. The card game is also featured in the animated series of the same name.
The Chaotic Trading Card Game is based on an earlier game called Chaotic: Now or Never! which in turn is based on another game called Grolls & Gorks.