Monthly Comp Ace (月刊コンプ エース, Gekkan Konpu Eesu, short for Monthly Comptiq Ace) is a Japanese computer game and manga magazine published by Kadokawa Shoten. Comp Ace began as a special edition version of another one of Kadokawa Shoten's magazines, Comptiq. The first issue was released on March 26, 2005, and was published quarterly for the first three volumes which had cover illustrations by Itaru Hinoue of Key.