What act and difficulty is 3-9 Core of the Abyss?

3-9 Core of the Abyss is Act 3 on Hell difficulty. The full 120-stage campaign is broken into 3 acts times 10 stages times 4 difficulties.

What level should my heroes be for 3-9 Core of the Abyss?

3-9 Core of the Abyss has a recommended level of Lv 77. Heroes below this level will underperform; heroes well above it will clear the stage trivially.

What materials drop from 3-9 Core of the Abyss?

The "What to farm here" panel on this page lists every material whose rarity band brackets this stage's level. The Drop Finder is the inverse tool — pick a material and see which stages to clear.

Stagecommonv1.00.26

3-9 Core of the Abyss

Act 3 / Hell

Act 3 Hell stage 3-9 Core of the Abyss. Recommended hero level Lv 77. Mini-boss: Mummy.

Key attributes

Stage ID: 3309
Difficulty: Hell
Act: 3
Stage in Act: 3-9
Recommended Level: Lv 77
Difficulty Level Range: Lv 53–77
Boss: Mummy
Waves: 27
Kills: 486
Gold: 3,421,275
EXP: 67,442,443
Unlocks Max Item Level: Lv 77

Notes

3-9 Core of the Abyss sits in Act 3 of the Hell run at recommended hero level Lv 77. The stage runs 27 wave(s) with 486 kills and rewards 3,421,275 gold and 67,442,443 experience. Reaching this stage unlocks item level Lv 77 in the drop pool; rarity does not scale by area, so even 3-9 can drop an Immortal. The mini-boss is Mummy.

3-9 Core of the Abyss Farming & Progression Guide

With a recommended level around Lv 77 and guarded by Mummy, this stage is an ideal benchmark for your team's idle DPS. If your taskbar heroes take more than 20 seconds to clear a wave here, consider stepping back to an earlier stage to optimize gold-per-minute farming.