Numenera is set a billion years in the future. Eight great civilizations have risen and fallen on Earth. Even though the current inhabitants live at about a medieval level of technology, the leftover remnants of these ancient advanced societies lie all around them.
Some of these are extremely helpful: advanced tools, valuable means of communication and learning, transportation, defenses, and weapons. Others are dangerous: genetically altered monstrosities, flesh-warping radiation, creatures transplanted from distant stars, and clouds of out-of-control nanobots, just to name a few.
Player characters explore this world of mystery and danger to find these leftover artifacts of the past, not to dwell upon the old ways, but to help forge their new destinies, utilizing the so-called "magic" of the past to create a promising future