Snap

The war had gone on too long, far too long. Strange advancements that shouldn't exist...just do. Horror stories from the front lines, tales of monstrous crimes and the technology to match. Everyone was due to hit breaking point, but the Earth snapped first. A sudden drop in temperature immediately decimated much of the population, later becoming the majority of the humanity (presumably) as sustenance and fuel ran low. Engines aren't made to work under such conditions so they simply don't. Seas froze over, inhibiting travel between continents. We are in a New Dark Age folks, and our faith is waning.