Warhammer 50k
The concept of Warhamemr 50K was created by some expatriot neckbeard on Heresy Online.
He detailed an even grimmer and darker Warhammer 40000 than any thought possible, where everyone's worst nightmares had come true. The Imperium is gone in a whimper, not a bang. The Orks and Tyranids could blend. The Eldar are dead and Ynnead is trapped in the dead Infinity Circuits. Chaos hates itself and is scared of the Devourer Waaagh! in the materium. Abaddon blew Perturabo's Blackstone Fortress-eating Goliath Engine out of the sky with the help of Typhus. The Void Dragon takes over the AdMech and begins to play Phyrexia. The Emperor dies, and the Star Child feeds on the blind, sensational faith that what is left of humanity gives off in spades. This new, fifth god, one of Order, makes faceless, gleaming daemons and perfectly smooth, golden daemon worlds in the warp. The last of the Solar System to survive the Golden Throne's failure is Titan. The Grey Knights and the Adeptus Custodes locked themselves away long ago on their moon and play eternal Dwarf Fortress against the Galaxy.
Cadia fell to chaos.
Maccragge is a Space Marine cult world.
The Void Dragon owns Mars.
Earth might not exist.
Any and all order is hiding on its own little planet, with no god to hope to, pleading into the silence that they aren't found by the pan-galactic Tyranork Devourer Waaagh!
Did I mention there are no more heroes, and that Lofn is dead?