An anime television series titled Chaos Dragon: Sekiryū Sen'eki (ケイオスドラゴン 赤竜戦役), produced by Silver Link and Connect, aired from July 2015 to September 2015.

[2] The franchise also includes a board game, titled Chaos Dragon: Haō Shunjū, and a role-playing game for iOS and Android devices, titled Chaos Dragon: Konton Senso, which released in 2015.

D'natia and Kōran, two countries fighting for supremacy, are causing the world to be torn apart due to the constant war.

Chaos Dragon is based on the role-playing fiction project Red Dragon, a story which was created by five notable writers: Gen Urobuchi, Kinoko Nasu, Izuki Kogyoku, Ryōgo Narita, and Simadoriru (member of the Stripe Pattern doujin circle).

The results of their tabletop role-playing game sessions over six days created material for a seven-volume light novel series.