- Plane of chaos; pockets of primordial earth, fire, water, electricity, and stranger elements are constantly manifesting and crashing together in all directions; an endless, rapid cycle of creation and destruction.

- Inanimate objects such as houses, plants, trees, islands, and castles also spring into being for short periods of time at random locations; weird junk can be found everywhere; temporary life forms can manifest as well.

- Medieval guard tower and disintegrating warship feature in the background.

- Majority of space is a muddy "chaos soup" made of water/earth/air that is not breathable; newcomers unfamiliar with the plane often suffocate.

- Creatures familiar with the space learn to mold chaos matter with their minds, creating pockets of breathable air, stone roads to walk on, wind to propel themselves forward, etc.

- A mind can create literally anything in Limbo, of a size and complexity limited only by a creature's mental ability. 

- One of the few native species is the "Slaadi;" chaotic toad demons that attack visitors, inflicting horrific transformations on victims to create new Slaad

- Enlightened githzerai monks have learned to build monasteries and whole cities out of chaos matter, making the plane their home; they are somewhat xenophobic and isolationist but can sometimes be an ally in the chaos.