Forbidden Sanctums were a popular addition to Path of Exile in the 3.20 update in early 2023. After a competition without the feature, it’s finally returning to the core game in update 3.22, but GGG has made some notable changes to it. I’ve been playing 3.22 quite a bit, and I’ve managed to track down most of the changes, new best practices, and other things that will help those unfamiliar with it get the most out of their Sanctums.
[POE 3.22] Mastering the Sanctum League Mechanics A beginner's guide to virtually never failing again!
The biggest change so far is the addition of the Forbidden Tome item. These are sellable, tradable items that represent both the Sanctum itself and your progress within it; when you complete the floor, a new item is created that represents your progress within the Sanctum, from Boons to Afflictions to how much Resolve you have left.
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Additionally, the difficulty for later floors has been increased, more Boons and Afflictions have been added, and some other tweaks have been made to make Forbidden Sanctums more fun and rewarding. You can also expect a greater variety of hazards in rooms and room layouts. Another big change is that Primary defenses can now protect Resolve.
