The center of the world is composed of magma and glows with reddish light. It is covered by many layers of stone and various ores. The core is extremely hot, and causes damage to Blockheads as well as making them emit smoke. As armor takes damage whenever the wearing Blockhead is hurt, armor will be damaged quickly near the core.
As the most certain location for finding magma, the center of the world enables the creation of basalt.
Cave trolls are also often found near the center of the world.