Pharagos

In the Incursion and Pharagos campaign settings for the Dungeons & Dragons role-playing game Pharagos is the lost homeworld of the Forerunners, the ancestors of the Githyanki and Githzerai before their race was enslaved by the Illithids. A lightly populated Earth-like world, it has three continent and numerous chains of islands. The one remarkable feature of this world is the presence of an immense petrified corpse of a god worshiped by the Forerunner civilisation before it was crushed by the illithid empire. A vast stony column of forgotten beliefs, it is buried deep in the ground, forgotten by history. The current inhabitants of Pharagos have no knowledge of the planet's past, the illithid empire's rule over the Pharagos and the origin of the gith races on this world are lost to history, and they are unaware that the source of mystical power for their numerous cults comes from the presence of the dead god under their land.