eld.gg Diablo 4 Items: Undercity

Farming Strategy Loop

To maximize Rune income, follow this 5-step cycle:

1. Farm Nightmare Dungeons (Tier 31+)

Focus on fast clears to Diablo 4 Items build up Tribute of Harmony drops.

Escalating Nightmares have the best drop rates.

2. Collect Tributes of Harmony

Stockpile at least 5-10 before heading to the Undercity for efficiency.

3. Enter Kurast Undercity

Apply one Tribute of Harmony before each run.

4. Speedrun the Dungeon

Push for the highest Attunement possible to increase Rune quality.

Bring AoE-heavy builds that can wipe mobs quickly.

5. Collect Runes and Repeat

Re-enter with more Tributes.

Funnel Runes directly into Mythic crafting or save them for high-end rune-words.

Rune Drop Rate Buff in Season 9

One major change boosting this route is Season 9's global Rune drop rate increase. Even outside the Undercity, Runes drop more frequently. But when combined with Tribute of Harmony's guaranteed rewards, this route produces some of the best yield-per-hour farming Diablo 4 has ever seen.

In practice, players are reporting 10-15 Runes per run at Diablo 4 Items for sale higher attunement ranks, with Legendary Runes dropping regularly enough to sustain Mythic crafting projects.