Devil Square – The Challenge of Kundun’s Forces
Face endless waves of monsters in one of MU’s most challenging events. Devil Square is the battlefield where only the strongest warriors can withstand Kundun’s infernal siege. Enter solo or with a team — survival is what matters.
To access this battlefield, you must craft the Devil Square Invitation using the required items at the Chaos Machine.
How to Access Devil Square
Access is done through the NPCs Charon, located in:
- Noria (172,106)
- Lorencia (140,138)

Items Required to Create the Invitation:
- Devils Eye
- Devils Key
- Jewel of Chaos
With the three items above, you can craft the Devil Square Invitation at the Chaos Machine:

Limits and Categories
- Only 15 players can join per round.
- The invitation must match your characters level range.
- Different invitation levels are crafted using item versions from +1 to +6.
Drop Table by Item Level:
Eye & Key Level | Recommended Monsters to Drop |
---|---|
+1 | Goblin or higher |
+2 | Elite Yeti or higher |
+3 | Shadows or higher |
+4 | Devils or higher |
+5 | King Lizard or higher |
+6 | Iron Wheel or higher |
Event Rules
- You cannot enter once all 15 slots are taken.
- If you die inside Devil Square, your character will be teleported to Noria.
- PK (Player Kill) is not allowed, except in declared guild wars.
Level Restriction by Devil Square Tier:
Devil Square Level | Allowed Character Level |
---|---|
1 | 15 ~ 130 |
2 | 131 ~ 180 |
3 | 181 ~ 230 |
4 | 231 ~ 280 |
5 | 281 ~ 330 |
6 | 331 ~ 400 |
Note: For Dark Lord and Magic Gladiator, a 20-level penalty applies.
Reward System
- Players compete in a performance ranking.
- 1st place receives 6 random jewels.
- Ranking is based on monsters killed and EXP earned.
Experience
- Devil Square offers the highest EXP rate in the game: 4500x.
- Up to 850 resets, a single run may grant one full reset.
- Beyond that, the progression remains significant.