Numenera - The Devil's Spine
Welcome to the Ninth World
There have been eight previous worlds. You may refer to them as ages, aeons, epochs, or eras, but it’s not wrong to think of each as its own individual world. Each former world stretched across vast millennia of time. Each played host to a race whose civilizations rose to supremacy but eventually died or scattered, disappeared or transcended. During the time that each world flourished, those that ruled it spoke to the stars, reengineered their physical bodies, and mastered form and essence, all in their own unique ways.
Each left behind remnants.
Check out the Wiki and the Forum.