After more than 60 Books spread out over 18 years the Horus Heresy series is finally over, so please be kind to the Warhammer 40,000 tragics in your life

The Emperor and Horus

For the foundational myth of the Warhammer 40,000 universe, the Horus Heresy had an extremely prosaic origin. The reason it exists, this massive fallen-paradise fairytale taking place 10,000 years in the setting’s past, is that Games Workshop couldn’t afford to put miniatures representing two different factions in a box back in 1988.

Rewind to the ’80s. Adeptus Titanicus is Warhammer 40,000 with mechs, presumably developed in an attempt to come at BattleTech’s crown. But a boxed set with 12 miniature Titans is expensive to produce, and to cut costs the two opposing forces of six giant robots have to be identical. A civil war is written into the setting’s history to explain why the Imperium was fighting a mirror match against palette-swapped versions of its own mechs, and that civil war is called the Horus Heresy.