MLP/Warhammer 40K crossover. Chaos Space Marines from the piratical 38th Company have engaged Tau forces around a planet rich with alien life, magic, and... friendship? I guess? Weird.
An experimental self aware A.I. driven robotic soldier named Adam is told he's been ordered to be destroyed by the government... His creator frees him from his military directives and tells him to run. He has a new directive now, self preservation.
Callum's life on Earth is a lowly one, devoid of colour and hope, but his life is soon to change forever, at the arrival of six very unexpected visitors.
Eons ago, in the trades of Nekravol, the great Khan Maykr sold away large stocks of worlds and planets that were once under their jurisdiction to the Dark Lord of Hell. Amongst these worlds being the peaceful land of Equestria.