The Occlusiad War, also known simply as the Occlusiad, was a major conflict that began in 550.M37 on the northwestern fringe of the Segmentum Obscurus between the Imperium of Man and the Heretek known as the Blind King.


In 550.M37, the northwestern fringe of the Segmentum Obscurus was ravaged by the apostate Adeptus Mechanicus Heretek cult known as the Apostles of the Blind King. These cultists were Tech-priests who viewed humanity as an affront to the Machine God. The Apostles uncovered wondrous artefacts lost in the Dark Age of Technology that allowed the creation of supernovae from the hearts of living suns. Constellations were forever changed as the Apostles purged the outer Segmentum Obscurus of human-settled worlds by forcing many stars to go nova. War raged for decades, until the Navigator Joyre Macran discovered the palace-warship of the Blind King hidden within a fold of Warpspace. Escaping with this knowledge, Macran guided the Emperor-class Battleship Dominus Astra to the palace's location. The Blind King was killed by the Dominus Astra's Lance batteries when they pierced his palace-warship's hull, and without his psychic prescience the Apostles were swiftly overcome by Imperial forces.


  • Codex: Skitarii (7th Edition), pg. 37
  • Warhammer 40,000 Rulebook (5th Edition), pg. 125

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