With the arrival of Diablo 4 Season 9, players are once again on the hunt for the best and most efficient methods to farm valuable resources. Whether you're gunning for ancestral legendaries, escalation nightmare sigils, or stacks of obducite, this season offers something special that breaks the mold of traditional farming loops. One method, in particular, has emerged as the best Obducite farm in Season 9 — the Infinite Strong Room Farm.

This guide breaks down everything you need to know about this powerful farming method: how it works, how to set it up, the rewards you can expect, and how it compares to other farming methods like Hell Tides, Pit runs, and Nightmare Dungeons.

What Is the Infinite Strong Room Farm?

At its core, the Infinite Strong Room Farm exploits a specific point in the Season 9 questline called “Amber's Yet Smolder”, a quest tied to the new seasonal progression. If you deliberately stop quest progression at the right moment — before completing this quest — you gain permanent access to a dungeon that always contains a Horadric Strong Room.

What's so special about these Strong Rooms? They're essentially mini-dungeons filled with loot, enemies, and a boss, all culminating in a high-reward chest that consistently drops:

· Ancestral Legendaries

· Obducite (Season 9 crafting Diablo 4 material)

· Escalation Nightmare Sigils

And most importantly, you don't need Nightmare Sigils to access them.

This allows you to infinitely re-run the Strong Room, making it not only fast and accessible but also incredibly efficient.

How to Set Up the Infinite Strong Room Farm

✅ Step 1: Start the Season 9 Questline

Begin the Seasonal Questline with a new or existing character that has NOT completed the “Amber's Yet Smolder” quest. If you've already completed this part of the quest, you must create a new character for the farm to work.

Pro Tip: You can re-use your existing gear by creating a new character of the same class and transferring equipment over.

✅ Step 2: Progress Until "Amber's Yet Smolder"

Continue the questline until you reach this quest. Do not pick up the quest item that appears in the Strong Room after defeating the boss.

By ignoring this item, the quest will remain unfinished, and the dungeon will resettable indefinitely, with a new Strong Room each time.

✅ Step 3: Enter the Strong Room Dungeon

The quest takes you inside a Keep-style dungeon, which always contains a Horadric Strong Room. It's a small map, so finding the entrance usually takes less than a minute.

✅ Step 4: Clear, Loot, Repeat

· Clear the Strong Room by activating the shrines and defeating the boss.

· Do not pick up the quest item.

· Loot the chest fully.

· Leave the Strong Room through the portal, then teleport out of the entire dungeon.

· Reset the dungeon, re-enter, and do it all again.

Each run takes less than 5 minutes, making it a compact and high-yield farming loop.

Test Results: What You Can Expect

To evaluate the power of the Infinite Strong Room farm, a 1-hour test run was conducted on Torment 4 difficulty with a well-optimized Hydra Sorcerer. The results were staggering.

Loot Summary from 1 Hour:

· 14 Full Runs Completed

· 23 Ancestral Legendaries

  · 1 with two Greater Affixes

  · 22 with one Greater Affix

· 9 Escalation Nightmare Sigils

· Over 39,000 Obducite

Analysis:

Ancestral Legendaries

Compared to Pit runs, which can yield similar results depending on run speed, the Strong Room runs hold their own. At just under 5 minutes per run, the Infinite Strong Room offers a more controlled environment with guaranteed boss chests, making loot acquisition consistent and predictable.

Escalation Sigils

These only drop from Horadric Strong Rooms, making this method the best possible way to farm them. With 9 sigils in an hour, you're more than prepared to tackle escalation dungeons later.

Obducite

The star of the show. With 39,000 Obducite farmed in an hour, this method outpaces Nightmare Dungeons and is competitive with Hell Tides, especially when factoring in the no-compass requirement.

How It Compares to Other Farming Methods

Farming Method Obducite Yield Ancestral Loot Sigil Drops Cost

Infinite Strong Room 39,000/hour High (23/hour) 9/hour (best) Free

Hell Tides ~45,000/hour Medium-High Low Needs Compass

Nightmare Dungeons 25,000–30,000/hour High Rare Needs Sigils

Pit Runs 20,000–35,000/hour Comparable loot None Free

Verdict:

The Infinite Strong Room is the most well-rounded and consistent method for Obducite and Escalation Sigils. While Hell Tides can beat it slightly in raw Obducite, the lack of entry requirements and high loot density make this method arguably more efficient for everyday farming.

Final Thoughts

The Infinite Strong Room Farm in Diablo 4 Season 9 is one of the most exciting farming discoveries of the season. It offers a fresh, efficient alternative to traditional methods, with stellar returns in Obducite, legendary loot, and escalation keys — all without consuming resources or requiring a group.

With a little prep and discipline (don't pick up that quest item!), you can turn this farm into a daily staple of your Diablo 4 rotation. As the meta continues to evolve in Season 9, we'll likely see even more strategies emerge — but for now, the Infinite Strong Room holds the crown for best Obducite farm in the game.