The Technology Compendium is one of my favourite supplements in Numenera.

This book starts with a chapter of how to use technology in your Numenera game. This is chapter is very useful if you, like me put a more technological spin to you game. The chapters breaks down Numenera into technology types helping you present the Numeneary in a way that makes more sense (more sense to you 20 century GM, not from ninth world perspective). At the same time this Chapter gives you a sense of the types of technologies the past 8 civilizations were delving on. Additional, you will find a new descriptor for artificial intelligence, which is a very nice bonus.

The following chapters cover cyphers, artifacts and oddities. A treasure trove of new resources to add to your game.

This supplement end with an super useful chapter where it breaks numenera (from all sources) into categories. It is great for when you want to find a cypher or artefact related to the datasphere or related to genetics for example.

All together I really appreciated the new insights this book gave me about Numenera as a source of technology and my players love all the great new chypers and artifactes that they got access too.