The Fallen Temple is the second capstone dungeon in Diablo 4, tied to unlocking World Tier 4 and Ancestral-tier Nightmare Dungeons
D2R ladder items. This dungeon is considerably harder than the Cathedral of Light and shouldn't be taken lightly. This guide will cover how to unlock this dungeon, how to complete each encounter, and provide tips on defeating the dungeon's final boss.
The Fallen Temple dungeon is available upon unlocking World Tier 3, although the dungeon itself is set to level 70. Most players that unlock World Tier 3 will be far below this recommended level, so it's imperative that you level your character and improve your items before attempting this dungeon. You'll find the Fallen Temple in the Dry Steppes, located near the eastern corner of the zone.
Compared to the Cathedral of Light, Fallen Temple features three encounters and one boss fight. This boss is far stronger than anything else you've fought thus far, capable of instantly killing most characters that are underleveled or poorly geared.
It is highly recommended that you reach level 67 or higher before attempting this dungeon. You'll also want to stack as much armor and damage reduction as possible to stay alive
buy diablo 2 resurrected items. As tough as this boss can be, you have unlimited revives. Learn the bosses patterns, and virtually every build should be able to clear this dungeon.