Akatsuki Blitzkampf (also known as Akatsuki Denkou Senki) is a 2D doujin fighting game developed and published by SUBTLE STYLE for the PC exclusively in Japan on April 30, 2007.
A revamped and complete version of the studio's demo fighting game Akatsuki Shisei Ichigou, Akatsuki Blitzkampf adds a variety of new characters while updating both the gameplay and the story.
The studio later ported the game to arcades (using Dreamcast-based Sega NAOMI hardware) under the title Akatsuki Blitzkampf: Ausf. Achse (or Akatsuki Denkou Senki Ausf. Achse). It was released by PIC in Japan on February 28, 2008. The game later received an arcade sequel in 2010, titled EN-Eins Perfektewelt and its 2023 standalone update, Anastasis.