Imperium of Man - Era Indomitus: Things have only been made worse with the birth of the Great Rift or Cicatrix Maledictum in ca. 999.M41, following the successful completion of Abaddon the Despoiler's 13th Black Crusade and the fall of the Fortress World of Cadia. The Great Rift is a massive Warp rift comprised of continuous and permanently raging Warp storms that now stretches across the galaxy from the Eye of Terror in the galactic west to the Hadex Anomaly in the east.No one fully understands the origins of the Great Rift, though there are many theories: the breach of the Cadian Gate during the Despoiler's recent 13th Black Crusade, the sorcery of the Daemon Primarch Magnus the Red during the Thousand Sons' invasion of the Fenris System, catastrophe in the Webway, mass bloodshed and warfare between the Imperium and the T'au Empire in the Damocles Gulf -- all may have caused or contributed to it.Its emergence was a literal galaxy-shattering event, which threw the Imperium of Man into chaos and ushered in new wars across nearly every world in the Emperor's domain. So powerful and far-reaching was this Warp rift that the very laws of physics fray at its edges as the inconsistencies of temporal fluctuations, once largely localised to larger Warp Storms such as the Eye of Terror, spread across the galaxy.Some worlds felt standard centuries go by in an instant while others were all but frozen in time, and still others have suffered constant temporal shifts.On the far side of the galaxy-spanning Warp rift from Holy Terra, things have quite literally gone to hell. There, the light of the Astronomican is obscured behind a psychic maelstrom of nightmares and the entire region has been dubbed the Imperium Nihilus, or the Dark Imperium. Many of those planets in the vicinity of the Great Rift have disappeared entirely, or been so corrupted that they are now labelled as Daemon Worlds. The regions of the galaxy on the near side of the rift, known as the Imperium Sanctus, still bathe in the light of the Emperor, but are under no less pressure from the still-growing threat of Chaos.In response to the emerging forces of Chaos throughout the galaxy, the recently resurrected Roboute Guilliman, primarch of the Ultramarines, and now once more the lord commander of the Imperium and its vast armies, has launched his Indomitus Crusade. It is this campaign, with its Imperium-altering course, that has given its name to this new period of Imperial history, the Era Indomitus.Gathering his new armada, along with elements of the Adeptus Custodes, a small contingent of the Silent Sisterhood, and a vast war host of Primaris Space Marines from many newly founded Chapters, the primarch and the other fleets of the crusade have set a winding course. Strike forces from over a dozen pre-existing Chapters of Space Marines, led by the Imperial Fists, have joined the Indomitus Crusade fleets.Thus began many new legends as Guilliman and the other Indomitus fleets travelled to aid beleaguered Imperial planets, breaking sieges and sweeping away invaders to bring hope back to the desperate defenders. It was not long before word began to spread, as those worlds that could still receive astropathic messages hailed the return of a hero out of myth. Once more, one of the demigods of the past fought for the Imperium of Mankind.Even so, in ca. 999.M41, the Adeptus Mechanicus secretly reported to the High Lords of Terra that in addition to all the other problems besetting the Imperium, the mechanisms of the Golden Throne are malfunctioning and they no longer possess the necessary knowledge to repair them.Whether the nobles of the Imperium like it or not, the Imperium will either begin to change at the direction of its resurrected lord commander, or it will die, the throats of its people cut by the myriad wolves already circling its shattered realms...