As originally posted on Equestria Daily!
After seeing something that he's certain can't be real, Equitech CEO Caesar seals himself away, researching, comparing, analyzing, seeing no one. After weeks, he eventually lets five trusted friends in on his findings. The result is a tyrannical spin on their world which sets them down a path battling the enigmatic Game Master, from which none of them will return unchanged, and some may not return at all.
Just a heads-up, the dark tag doesn't really apply until the later chapters. All central characters are actual ponies that have appeared in the background of episodes way back in season 1 and onward, not OCs.