Warhammer Age of Sigmar Codexery

The Great Rift

A jagged scar across reality where the Realm of Azyr is severed from the other Mortal Realms and the Realm of Chaos.

The Great Rift

The Great Rift is a catastrophic wound torn through the very fabric of reality in the Mortal Realms, a swirling vortex of raw magic and void that separates the Realm of Azyr from the other Mortal Realms and the Realm of Chaos. Created by a desperate act of defiance during the Age of Chaos, this scar was unleashed by Sigmar to seal off the Realm of Chaos after the fall of the Allpoints. It serves as both a barrier against Chaos and a source of endless peril for Sigmar's realm, marking the transition from the old age to the current era of perpetual conflict.

Nature
Planar Wound / Reality Tear
Location
Separates the Realm of Azyr from the other Mortal Realms and the Realm of Chaos
Creator
Sigmar (alone, before the founding of the Stormcast Eternals)
Status
Active and Expanding
Primary Threat
Chaos Incursions and Reality Instability

Lore & Background

Since its creation, the Rift has been a source of constant tension. It is not merely a wall but a living, breathing entity that leaks chaotic corruption into the worlds it borders. The Stormcast Eternals and other defenders stand guard along its jagged edges, fending off daemonic incursions that seek to widen the tear. For the inhabitants of the Mortal Realms, the Rift is a daily reminder of their fragility; the sky often burns with unnatural colors, and reality itself can warp in its shadow, turning friends into monsters or twisting landscapes into nightmares.

In Their Own Story

Kaelen adjusted his helm as the air grew thick with the taste of ozone and rot. Before him, the horizon did not end in a sunset but dissolved into a churning maelstrom of violet fire and screaming shadows. The Great Rift pulsed like a diseased heart, its rhythmic thrum vibrating through the soles of his boots. A daemonic claw, translucent and writhing with green ichor, reached out from the void, grasping at the air before dissolving into smoke as a bolt of holy lightning struck it down. 'Hold the line,' Kaelen whispered to his squad, watching the impossible geometry of the tear shift and twist. There was no retreat here, only the thin, fragile edge between existence and oblivion.

Reader's Guide

The Great Rift marks the definitive end of the Age of Sigmar's previous timeline and the beginning of the current era. Mythologically, it represents the ultimate sacrifice required to preserve free will against the deterministic tyranny of Chaos. The metaphysical rules governing this wound suggest that reality is no longer stable; magic flows unpredictably near its edges, and the boundaries between life and death are porous. Historically, the Rift replaced the old borders where the realms touched directly. Before this event, the Mortal Realms were vulnerable to direct invasion by the gods of Chaos. Now, a buffer zone of raw, unformed energy exists. This has given rise to new factions dedicated solely to its defense and those who seek to exploit its instability for power. The Rift is not static; it expands and contracts based on the balance of power in the cosmos. When Chaos grows strong, the tear widens, threatening to swallow entire continents. Conversely, acts of great heroism can temporarily seal small breaches, though the main wound remains a permanent scar upon the face of creation.

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