Mechanus

From Syra D&D Wiki

The Clockwork Nirvana of Mechanus is one of the Outer Planes. It is known as the plane of ultimate low, where perfectly regimented order reigns supreme. The plane is an infinite network of interlocking gears turning in concert with each other. Each face of every gear has its own gravity; crossing from one face to another can be dizzying for newcomers, and woe to those who fall between them.

While most of Mechanus's inhabitants are constructs, there are a few living creatures as well, such as the antlike formians, who seek to colonize all they see and incorporate all other beings into their haves as workers serving the laws of their queens.