The Repository of the Architects is a biome that is inaccessible through legitimate means. The entrance was behind a 5 BSC door at the Graveyard until v1.2, which could not be opened due to the fact the fifth BSC was not legitimately obtainable. As of now, it is merely a placeholder, and is not meant to be accessible under normal circumstances. If it were to be accessed through modding, however, the biome would contain many Cannibals, and an unopenable door[1].
