Devil Square — The Challenge of Kundun's Forces
⚔️ Face the forces of hell!
Devil Square is one of the most challenging events in Mu Online. Face waves of monsters, test your endurance in groups or solo, and compete for the best rewards. To enter, you need to create a Devil Square Invitation at the Chaos Machine.
How to Access
- Talk to the NPC Charon in Noria (172,106) or Lorencia (140,138).
- Create the invitation with the correct items at the Chaos Machine.

NPC Charon (access to the event)

Devil Square Invitation (result of the combination)
Items Required to Create the Invitation

Devil's Eye

Devil's Key

Jewel of Chaos

Combine the 3 items to create the Invitation
Limits and Categories
| Information | Detail |
|---|---|
| Limit per round | Maximum of 15 players |
| Invitation level | Must be compatible with the character's level |
| Invitation variation | +1 to +6 |
| Progression | Higher invitations require stronger monsters |
Drop Table by Item Level
| Eye/Key Level | Recommended Monsters |
|---|---|
| +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
- Entry limited to 15 players per round.
- Upon death, the player is teleported to Noria.
- PK is not allowed, except between warring guilds.
Level Range Restrictions
| Devil Square Level | Allowed Range |
|---|---|
| 1 | 15 ~ 130 |
| 2 | 131 ~ 180 |
| 3 | 181 ~ 230 |
| 4 | 231 ~ 280 |
| 5 | 281 ~ 330 |
| 6 | 331 ~ 400 |
Schedules and Duration
| Event Times |
|---|
| 05:00 | 09:00 | 15:00 | 19:30 | 23:00 |
| 5 times a day |
| Phase | Time |
|---|---|
| Advance notice | 5 min |
| Active event | 15 min |
| Time to exit | 1 min |
Rewards
- 20 GP
- 1x Box of Event
EXP by Ranking
Devil Square 1 to 5
| Rank | EXP |
|---|---|
| 1st | 6,000 |
| 2nd – 3rd | 4,000 |
| 4th – 6th | 2,000 |
| 7th – 10th | 1,000 |
Devil Square 6 / 7
| Rank | EXP |
|---|---|
| 1st | 26,000 |
| 4th – 6th | 22,000 |
| 7th – 10th | 20,000 |
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