What act and difficulty is 3-8 Citadel of Ruin?

3-8 Citadel of Ruin is Act 3 on Nightmare difficulty. The full 120-stage campaign is broken into 3 acts times 10 stages times 4 difficulties.

What level should my heroes be for 3-8 Citadel of Ruin?

3-8 Citadel of Ruin has a recommended level of Lv 51. Heroes below this level will underperform; heroes well above it will clear the stage trivially.

What materials drop from 3-8 Citadel of Ruin?

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

3-8 Citadel of Ruin

Act 3 / Nightmare

Act 3 Nightmare stage 3-8 Citadel of Ruin. Recommended hero level Lv 51. Mini-boss: Kobold Guard.

Key attributes

Stage ID: 2308
Difficulty: Nightmare
Act: 3
Stage in Act: 3-8
Recommended Level: Lv 51
Difficulty Level Range: Lv 33–52
Boss: Kobold Guard
Waves: 23
Kills: 345
Gold: 1,006,894
EXP: 19,212,300
Unlocks Max Item Level: Lv 51

Notes

3-8 Citadel of Ruin sits in Act 3 of the Nightmare run at recommended hero level Lv 51. The stage runs 23 wave(s) with 345 kills and rewards 1,006,894 gold and 19,212,300 experience. Reaching this stage unlocks item level Lv 51 in the drop pool; rarity does not scale by area, so even 3-8 can drop an Immortal. The mini-boss is Kobold Guard.

3-8 Citadel of Ruin Farming & Progression Guide

With a recommended level around Lv 51 and guarded by Kobold Guard, 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.