The position of Game Master (ゲームマスター Gēmumasutā) gives one the ability to craft a tale using a game board. This position is held by a Witch/Sorcerer and the game board is Rokkenjima, specifically, from October 4th to October 5th of 1986. When creating a tale, the Game Master must always avoid creating a Logic Error or the game will instantly be destroyed.

There are/were other game boards than Rokkenjima in the Umineko universe, according to several other witches.

Known Game MastersEdit

As mentioned in the original continuity
Game Masters Games
Hanyū Furude All of the story arcs in Higurashi no Naku Koro ni
(according to Lambdadelta in the Dawn of the Golden Witch manga)
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