The Rules You Need
Numenera uses the core rules from The Cypher System Guide. If you're new, read these parts first; this section won't repeat them.
Core Mechanics
The d20 task roll, difficulty and easing.
Cypher System GuideStat Pools & Effort
Might, Speed, Intellect, Edge and recovery.
Cypher System GuideThe Magic of Cyphers
Cypher limits and how cyphers work.
Cypher System GuideGM Intrusions & XP
Intrusions, discoveries and advancement.
Numenera in 6 Parts
Everything the setting adds, in reading order.
Welcome to Numenera
What makes Numenera different, and how its rules relate to the Cypher System.
The Ninth World
The Steadfast, the Beyond and a billion years of ruins.
Numenera Characters
Glaives, nanos and jacks, Ninth World descriptors and foci.
Sample Characters
40 ready-to-play Ninth World characters, solo and in groups, to import into the character sheet.
Cyphers, Oddities & Artifacts
The Ninth World's cyphers, oddities and artifacts.
Running Numenera
Running discovery-focused games in the Ninth World.
Tools
Setting-specific tools. For dice, use the main guide's roller.