The namesake of the entire game line, the "numenera" are artifacts, oddities, and little bits of almost magic-like technology left to the Ninth World by a billion years of previous civilizations. Now the Ninth World's foremost expert, the redoubtable (though perhaps not entirely sane) Sir Arthour, brings nearly 1000 new items to the Numenera gaming table! The Technology Compendium: Sir Arthour's Guide to the Numenera contains 400 new cyphers, 225 new artifacts, and 300 new oddities. For the players, it introduces a new race: the artificial intelligence. And it includes extensive GM advice on integrating incredibly advanced technologies into your game.