Pandemonium

The Ever-Changing Chaos of Pandemonium is an Outer plane that embodies the chaotic neutral alignment.

This plane is supreme chaos, an abandoned astral dominion, a twisting, quicksilver place filled with bits and pieces of rocks, trees, the four elements, entire landscapes, strong winds, and random pockets of liquid, solid, or gas.

Sentient beings can dampen down the chaos to livable levels and produce a safe environment as long as they maintain concentration. The size of a safe zone is directly related to the intelligence of the individual controller. Demigods and more powerful beings do not have this burden and indeed can create realms that survive even if they leave Pandemonium.

Gravity operates only between solid objects that touch each other and have about the same strength as on the Prime Material Plane. Thrown objects fly straight until they hit a solid object. Objects with no momentum hang in space until contacted by something solid.

Pandemonium doesn't have layers, at least layers in the way that most people would define one. Drifting throughout this infinite plane are numerous, floating landmasses that occasionally break off, and reform, some of them being hundreds or thousands miles wide.

These gargantuan landmasses are entirely made of rock and pierced by innumerable tunnels and caverns large and small. All open space is filled with howling winds that carry the sound of every word, shout, or scream uttered in the place. Without adequate protection, beings with hearing are rendered temporarily deaf in a matter of seconds and permanently deaf in a few minutes. Normal fires cannot survive and there is no natural light. Conversation can only be accomplished by shouting at close range.

Gravity within the caverns pulls away from the center of any cavern so a traveler can walk on the floor, walls, or ceiling. Streams and rivers flow along one surface of a cave, or inexplicably down the middle through the air. The larger caverns are hundreds to thousands of miles deep, wide, and tall, and the winds there can lift up small humanoids and carry them far away before a dangerous landing.

At the very center or what is perceived to be the center of this ever-changing plane, is the Spawning Stone, the primordial home of the slaadi race and their greatest dominion. The slaadi are frog-like natives of Pandemonium and well-known representatives of the Ever-Changing Chaos. Evolved or uplifted from the primordial soup of infinite potential, the belligerent batrachians are disorder given flesh and born carriers of chaos. This "layer" is strategically important because of its connections to the Outlands and the Astral plane.

Other inhabitants of the plane are either immigrants, visitors, exiles, marooned, or prisoners. Quasits and shadow demons are plentiful, as well as many low- to mid-level demons.