Guides
Devil Square
Devil Square event guide for MU Online Season 21 MajesticMU. How to enter, kill ranking, boss mechanics, and rewards for Devil Square.
Devil's Square — Event Overview
Devil's Square is a wave-based kill competition where up to 20 players fight through increasingly powerful monster waves. The player with the highest kill count at the end wins a bonus reward — making it both cooperative (monsters must die) and competitive (your rank matters).
Quick Facts
| Property | Details |
|---|---|
| Schedule | ~22 sessions per day (every 30–60 minutes) |
| Duration | 20 minutes per session |
| Entrance Items | Devil's Eye + Devil's Key (combine in inventory) |
| Max Players | 20 per room per tier |
| Levels | DS1 (Level 50–399) through DS7 (Level 1600+) |
| Daily Limit | 1 entry (2 for Silver VIP, 3 for Gold VIP) |
How to Enter
- Collect entrance items: Devil's Eye and Devil's Key drop globally from all monsters.
- Combine them in your inventory to create the Devil's Square ticket.
- Find the Devil's Square gate NPC and enter during the open period.
- You are automatically placed in the tier matching your level.
Level Tiers
| Tier | Level Range |
|---|---|
| Devil's Square 1 | Level 50–399 |
| Devil's Square 2 | Level 400–799 |
| Devil's Square 3 | Level 800–999 |
| Devil's Square 4 | Level 1000–1199 |
| Devil's Square 5 | Level 1200–1399 |
| Devil's Square 6 | Level 1400–1599 |
| Devil's Square 7 | Level 1600+ |
Monster Waves
Monsters spawn in three waves:
- Wave 1 (Minutes 0–7): Weakest monsters for the tier
- Wave 2 (Minutes 5–14): Medium-tier monsters replace wave 1
- Wave 3 (Minutes 12–20): Strongest monsters for the tier
At minute 15, corner boss monsters spawn at all four corners of the arena. These are powerful mini-bosses — target them for extra kill points.
Kill Ranking & Rewards
| Rank | EXP Bonus (DS7) | Zen Bonus (DS7) |
|---|---|---|
| 1st | 26,000 | 150,000 |
| 2nd | 24,000 | 140,000 |
| 3rd | 22,000 | 120,000 |
| 4th | 20,000 | 90,000 |
All participants receive EXP and item drops from kills. The ranking bonus is additional on top of standard rewards.
Rewards
- EXP and Zen from kills
- Item drops from monsters (level-appropriate equipment)
- Ranking bonus EXP and Zen for top kill count
- Jewels of Bless, Soul, and Chaos from monster drops
Tips
- AoE classes dominate — Summoners, Soul Masters, and Muse Elves can rack up kills rapidly.
- Target corner bosses — They give bonus points and drop good items.
- Enter DS as often as possible — 20 minutes of focused grinding yields excellent rewards.
See Full Guide
For complete strategy, class recommendations, and advanced tips, visit the Devil's Square — Horde Hunt Guide.