"Darkspace" is an archetype of DARK monsters whose body is similar made of unknown materials that are not of this world. The most famous member of the archetype is "Galaxy-Eyes Darkspace Dragon". Most of the Darkspace monsters in some stories are Purple, while the color of all Darkspace monsters in other stories, are black. Ragardless, all of their members have white dots on their bodys, which represents stars.
Due to the fact that most of the archetype relied on Fusion and Xyz Monsters, it has the advantage over other pure decks that used Fusion Monsters. Since the archetype is related to the "Galaxy" archetype, cards such as "" would support these cards.