| Category | Cults |
| Region | see below |
| Headquarters | none - decentralized |
| Size | unknown |
| Race | any |
| Alignment | chaotic |
| Deities | Krak-Oth, others |
| Purpose | spread chaos and anarchy |
| Established | 11 Witchrite 783 |
Entropy is an organization with ideals dating to the time of the Primordials, destabilizing the peoples and lands around them, and for the fanatically determined, following the Primordial Mandate.
Entropy is largely a decentralized organization, even shunning alliances between cells. The organization's strongest cells are home to the northern chaos infused lands called Flux.
In 1296, magical experiments by the organization's Mutation cell resulted in the Sink of Chaos, and the warping of land and peoples for hundreds of miles.
In the First Ogre War (1505 - 1511), Entropy's beast division, the Savagor, got rich selling Skullcrushers to the Toomrur Hegemony.
In 1814, members of the same cell traveled to a place where Ushgergoon crossed over into Bal-Kriav from Limbo. In a vault somewhere beneath the forest floor of Nárfaltuin they carved three entropy fragments from the Pinnacle of Chaos. After a deadly explosion, the survivors took the fragments back to Mogdúlg where they were used in the building of an Entropy Arch.
On cue with the start of the Chaos War (1814 - present), all Entropy cells turned militant. Secretly and openly, they pledged their support for those on the side of Chaos. Like in wars previous, they made a fortune trafficking as many as 200 skullcrushers a year to the one of the master minds of the war, the Eldritch Conclave.
On 7 Witchrite 1832, the Entropy Arch they had been building since 1814, was dropped into the Khazarkar city of Sapthiladân. It was activated by an Entropy cultist truly embracing the cause, diving through the arch's opening where they were disassembled, becoming flotsam in the Sea of Chaos.
| Cell | Region | Location | Leader |
|---|---|---|---|
| Savagor | Hells Womb | Vrak-Tror | Holigome |
| Disorder | Cinazan | Garaldrarg | Mieleth |
| Frenzy | Drarthiel | Urla'palos | Kraadred |
| Mayhem | Aerie of Dragons | Madragh | |
| Mutation | Ice Cap | Mogdúlg | Irmerthun |