Citadel of Trials Data Pack Wiki & Guide

Strongholds generate in the same locations as vanilla Minecraft, so use Eyes of Ender to locate them as normal. Once you arrive, you'll see the revamped layout with new chambers instead of the classic stronghold design.

These keys unlock the vault blocks scattered throughout the stronghold chambers, which contain valuable loot like equipment, Phantom Membranes, and Dragon's Breath to help you prepare for the End fight.

Trial spawners summon waves of hostile mobs when you approach or trigger them; they're designed as combat challenges rather than traditional mob spawners. Bring strong armor and weapons, use terrain for cover, and consider clearing them room by room rather than rushing in.

Data packs don't have built-in difficulty settings, but you can modify the pack's files to adjust spawner rates or remove specific rooms if you're comfortable with that level of customization.