Hypergryph

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Hypergryph Network Technology Co. Ltd., commonly known as Hypergryph or HG, is a video game development company based in Shanghai, China. It is known as the creator and developer of Arknights and the publisher of the game's original Chinese version. It was founded on January 24, 2017 by Hai Mao and his colleagues from Google, Cygames and MICA Team (now Sunborn), the latter of which is notable for being the developer of Girls' Frontline. Hypergryph consists of several subsidiaries such as the development teams for their games or their own label Monster Siren Records for the music related to Arknights.

(Source: Arknights Wikia, edited)