The void fortress is a stone brick fortress floating in the Void, it's Iron Golem guardians have long since been killed, and it is now overrun by Wither Skeletons.

The Void fortress was originally part of the Ouranucial fortress, until a massive explosion seperated the Fortress into two main pieces, the other being the Aetherical Fortress. The Void fortress is extremely damaged and is made largely of charred stone brick blocks (stone brick blocks with black stains), as well as normal stone bricks and chiseled red sandstone.

The extent of it's inhabitants is unknown, but it could function as an effective base of operations for anyone who had been banished to the Void and happened upon it.