It serves as the origin of Dabura where he was king of the Demon Realm until his death at the hands of Majin Buu. Because of this his sister Towa created Mira to take his place. Both Dabura and Towa were the grandchildren of Mechikabura who was stated to be the strongest Evil before his death.
Demigra was apart of the Dark Empire as a demon god before leaving it to pursue his own desires.
It serves as the main antagonists of Dragon Ball Online, Dragon Ball Xenoverse, Dragon Ball Xenoverse 2, and Dragon Ball Heroes.
The organisation first appears in Dragon Ball Online where they were led by Towa and Mira,then in the Xenoverse series the time breakers Towa and Mira alongside Demigra were attacking the Supreame Kai of Time and her time patrol to get to Toki Toki and it's egg to control the timelines. After Demigra's death alongside Towa and Mira's Son Fu takes up the role of the Time Breakers.
In Dragon Ball Heroes the Time Breakers were expanded with Meichikabura being revived by Towa to lead the Demon Empire again and later brainwashes Dende to make the Dark Dragon Balls. Dabura was also revived as a Demon God and more powerful than he was before.