Realm of Chaos - Dark Prince's Realm: Slaanesh is the Lord of Pleasure, the Dark God dedicated to the pursuit of earthly gratification and the overthrow of all decent behaviour. He is the god of obsession, the Master of Excess in All Things, from gluttony to lust to megalomania. Wherever mortals are ruled by their own unquenchable desires, the Dark Prince of Chaos is there in the shadows, whispering, tempting, and feasting on a banquet of souls.Slaanesh was given life by the immorality and hubris of the ancient Aeldari Empire. As their empire reached its zenith, the Aeldari became lost in their own decadence, for they experience sensation and emotion to a far greater degree than any other intelligent species of the galaxy. The capabilities of their highly advanced technology meant that the Aeldari did not need to labour or wage war. Instead, they were able to dedicate their lives to whatever idle pursuits took their fancy.Over several generations, this indolence came to rule and pervert their spirits. In the Immaterium, the collective psychic reflections of their indolence and extreme amoral hedonism caused a new Chaos God to stir, beginning in the 25th Millennium of the Terran calendar. Created by one species' pure dedication to indulgence, the first motes of what would become Slaanesh began to coalesce.The dormant Slaanesh fed upon the unchecked collective psyche of the Aeldari, drawing on their lusts and ambitions, their artistry and pursuit of excellence in all things. In turn, as Slaanesh grew, its nascent dreams trickled into the minds of the Aeldari and fuelled their desires, pushing them ever onwards towards their eventual doom. Eventually, the Aeldari civilisation devolved into little more than pleasure cults dedicated to every act of physical, mental and spiritual fulfillment. Blood stained the statuary of their plazas as crowds of drug-addled maniacs sated their violent desires in the streets of the Aeldari homeworlds.On one particularly depraved night, the debauchery reached a terrible crescendo that tore out the heart of the Aeldari Empire and left it ravaged beyond recovery. The Fall of the Aeldari in the early 30th Millennium was signalled by the psychic birth-scream of Slaanesh, a tsunami of emotion that heralded the Prince of Pleasure's arrival in the Realm of Chaos.The psychic implosion caused by Slaanesh's birth swallowed hundreds of worlds at the heart of the Aeldari Empire in what is now the Imperium of Man's Segmentum Obscurus, killing billions of Aeldari in a single instant and devouring a great section of the galaxy in the process. Such was its ferocity that it overwhelmed the barrier between the material and the immaterial, forming the massive, permanent Warp rift later named by Humanity the "Eye of Terror."Rampant and hungry, Slaanesh devoured the minds and souls of the Aeldari, and across the galaxy, that ancient species was almost wiped out. Only a relative few Aeldari survived Slaanesh's birth-feast. Most of the survivors that remain have become sworn enemies of the Dark Prince, and yet a few of them have formed isolated cabals -- the Drukhari -- that still behave as their ancestors did, perversely following the downward spiral of excess.That is how events are viewed from the chronology of the material universe. In the Warp, things are different, for the Immaterium is not bound by linear four-dimensional time, and events do not occur in a strict sequence of cause and effect. As his rival gods reckon it, Slaanesh has always existed in the Warp, and yet has never existed at all.Some say that is it impossible for mortals to look upon the divine face of Slaanesh without losing their soul to him, for all who see it become willing slaves to the whims of the Dark Prince, embracing his ways with wild abandon. The mere knowledge of Slaanesh's existence can cause a world to topple into corruption and hidden depravity, a fact which drives the Inquisition's paranoia and willingness to sacrifice so many civilians at even the slightest hint of corruption.Slaanesh is unique among its brother-gods. It does not try to keep others out of its home in the Realm of Chaos, the Dark Prince's Realm. It invites them in. Through a series of tests of the will, it defends its gleaming palace against assault. Those that dare the Dark Prince's realm risk becoming trapped in its warped delights for eternity.Tales such as that of the Heretic Cardinal Wogalta recounted above describe this Palace of Slaanesh, also known as the Palace of Pleasure, as sitting at the centre of the Dark Prince's empire, surrounded by six other domains arranged in concentric rings that together comprise the entirety of the Dark Prince's Realm. Each ring holds different temptations for those who wander through it, imploring them to succumb to the pleasures it offers. Temptation is a weapon just as powerful as a chainsword or bolter. Traps can be sprung to eliminate the weak and dim. The bodies of those who succumb to the myriad temptations of the Dark Prince's Realm are consumed by the land itself, or turned into statues that beautify the view for others.The souls of these lost and damned unfortunates feed Slaanesh's insatiable hunger. It invites them in so that they might sustain the god and its realm. Those who pass early tests may catch Slaanesh's eye, giving it some amusement for a time as it watches them resist, only to inevitably lose themselves to one seduction or another. Those rare few who make it to the outer walls of the Palace of Pleasure may be graced by a visit from the Lord of Excess itself.None have ever made it into the palace unless Slaanesh wished it, for all who have looked upon the god's perfection have fallen to their knees and given themselves over, mind, body, and soul, to its dark majesty.