Heartbroken from her friends and brother abandoning her at the wedding rehearsal, Twilight Sparkle retreats to a strange new world and is later followed by Spike and Rainbow Dash. Once there they encounter new races, strange technology, gain great power and see to the foundation of a new empire. But while there they experience constant warfare from many enemy factions that seek their destruction, turning the innocent ponies and dragon into naught but a memory. So now there is only one question: when they return to Equestria, will they come as peaceful diplomats, or conquerors?

Universe in set in a Halo/Warhmmer 40k/Star Wars mixed galaxy.

Halo is property of Bungie.
Warhammer 40k belongs to Games Workshop.
Star Wars is owned by Disney.

Not sure if the action sequences will actually be gorey, but the tag's there just in case.