Brave & Foolhardy
The Far Realm contains an infinite number of layers, these layers range from inches thick to miles, and it is often possible to perceive multiple layers simultaneously. These layers can grow, spawn further layers, breathe and possibly die.
The Far Realm is home to many powerful and unspeakable beings ripped from the nightmares of the darkest minds of the waking world. Beings so unfathomable that their very existence is a perversion of reality itself. These beings are governed by lords of unimaginable power and knowledge completely alien. The Far Realm is a plane far outside the others and often not included in the standard cosmology. It is sometimes referred to simply as “Outside”, because in many cosmologies it is literally outside reality as mortals understand it.
An anomalous plane, the Far Realm is a bizarre, maddening plane. Creatures native to or connected with the Far Realm have the aberrant origin. Distant stars have been driven mad by proximity to the Far Realm, resulting in the abominations known as starspawn. The Far Realm also breaks into reality at various points in the Underdark, leading to the rise of the aboleth and mind flayer empires. Natural humanoids tainted by the Far Realm are known as foulspawn.
The Far Realm was originally sealed off from reality by a construction known as the Living Gate, which lay at the top of the Astral Sea. The Living Gate awoke and opened during the Dawn War between the gods and primordials, and was destroyed in the same war, thus allowing the Far Realm to break into to the natural world. Psionics are believed to have developed as a means to fight the Far Realm, in the same way that a body develops antibodies to fight an infection.