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Codex of Sanctuary

DIABLO IV · FIELD MANUAL
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CLASS MECHANIC {{selMech}}
ENTER CODEX
WHAT IS THE CODEX ▾
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BEYOND THE CLASSES · ONE SHARED VOLUME
SYSTEMS OF SANCTUARY

The systems manual every class shares — a plain-language guide to what Diablo IV does not explain clearly. Codex of Power, the Occultist, gear and tempering, the Horadric Cube, Paragon, difficulty tiers, seasons and more: fourteen chapters on what each system is, when it unlocks, and how it connects to the others.

READ THE MANUAL
THE FIELD MANUAL

NOT JUST A BUILD LIST

Eight classes. Four complete builds each. Every point from level 2 to 70 — and each Codex explains the class before it asks you to build it.

LEVEL IT
Every skill point from level 2 to 70, in an order that works while you are levelling it.
UNDERSTAND IT
Class mechanics explained before the guide asks you to use them.
PLAY IT
Normal-pack, elite and boss rotations for every build — what you press, and why.
BUILD IT
Gear progression from whatever drops to optimized endgame.
TWO DEPTHS, ONE TOGGLE
Every chapter is written at two depths. Beginner gives the plain-English explanation first; Advanced adds the technical interactions and optimization when you want them. One toggle in every Codex header, remembered between visits.
KEEP IT BESIDE THE GAME
Every build has Play Mode — the guide stripped to one screen: current level, next skill point, action bar, class mechanic, rotation and next upgrade. Open it on a second monitor and level without reading.