Limbo

This plane was supreme chaos, 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 could dampen down the chaos to livable levels and produce a safe environment as long as they maintained concentration. The size of a safe zone was directly related to the intelligence of the individual controller. Demigods and more powerful beings did not have this burden and indeed could create realms that survived even if they left Limbo.
Gravity operated only between solid objects that touched each other and had about the same strength as on most Prime Material Planes. Thrown objects would fly straight until they hit a solid object. Objects with no momentum would hang in space until contacted by something solid.

Limbo has five layers that were nearly indistinguishable from each other. The first four layers were named for the chief race or deity that were most often found there. The fifth layer was referred to as the layer of Lost Gods. Each layer is infinite in its size but navigation on and between planes is still possible should you know where you want to arrive.

Type

Dimensional plane