Guide Events Devil Square

Devil Square

Devil Square Mu Online

In MU's history, the Elf Tree once stood in Noria. Essentially, the tree still stands to this day, but now relocated. The Elf Tree was created by the Queen of all Elves, known as Aria. This tree, a sacred ancient monument, had the ability to produce Elves regularly.

Unfortunately, with time, Secrarium learned of the tree's great ability. Through dishonest tactics, he tricked Lugard into revealing the location of the Elf Tree. Having set his eyes on the tree's power of birth, Secrarium corrupted the tree and transformed it into what is now called the Immoral Tree. The Immoral Tree, now corrupt, gives birth to monsters.

The monsters horde grew to astronomical proportions, and the kingdoms of the MU continent had to combine their forces to entrap the Immoral Tree in a space of nothingness, where monsters could not escape. Monsters continued to spawn at regular intervals, from the tree, however after careful consideration Aria decided to make it a training arena for travelers.

Enter as one of 10 MUtizens to engage the forces of Kundun as they spawn in front of you in a endless barrage of attacks. Either alone or in a team only the strongest will survive the Devils Square. With the Devils Invitation, you are granted access into the Devils Square, where your strength will be tested.

How to play

Main Mission: Kill monsters and survive.

  1. When the event starts the monsters will instantly spawn all over the arena.
  2. You just have to kill monsters.
  3. Monsters will continue to spawn for the whole duration of the event.
  4. As the time progresses, the monsters which spawn will change and their difficulty will slightly increase.

How to enter

To enter the Devil Square, you need a Devil Square Invitation and go to Noria to talk to the NPC Charon which will send you to the event map and you must talk to the same NPC Charon.

Another way to enter is through the command window, if you press M and select Event Square you will be teleported to the event map where you can enter the main Mu events and in turn, you can enter the "Event Square" through the notification icon when the event is available.

Only the first 10 players who show the Devil Square Invitation to the NPC Charon can enter.

Devil Square Invitation
Devil Square Invitation
Item used to enter the Devil Square

Admission Notification

Notification Icon
Notification Icon
A Notification Icon will appear when the event is available for entry.

The Event Icon will be displayed on the game screen when it is available for entry and will disappear when its entry time expires.

You will move to the "Event Square" by clicking on the event notification icon.

Charon
Charon
[Location]
Noria: (171, 105)
Charon
Charon
[Location]
Loren Market: (223, 93)

Devil Square Level Range

Devil SquareEntry LevelExp Multiplier
150 ~ 399x1
2400 ~ 799x1
3800 ~ 999x1
41000 ~ 1199x1
51200 ~ 1399x1
61400 ~ 1599x1
71600+x1

Server Settings

Event statusEnabled
ScheduleEvery 2 hours at minute :50 (starting 01:50, server time)
Entry window5 minutes after announcement
Event duration15 minutes
Max players per room10

How to get the Devil Square Invitation

To get the Devil Square Invitation you must go to the Chaos Goblin Machine and select the "Regular Combination" option and enter the following items.

Required Combination Material:

  • 1 Devil's Key
  • 1 Devil's Eye
  • 1 Jewel of Chaos
  • Zen

* Only items of the same level can be combined to create the Devil Square Invitation for that specific Devil Square.

Probability: It depends on the level of the invitation.
Successful Result: Devil Square Invitation.
Failed Result: All items will be destroyed.

Chaos Goblin Machine
Chaos Goblin Machine
[Location]
Noria: (180, 103)
Loren Market: (217, 62)
Loren Market: (193, 95)
Loren Market: (226, 96)
Loren Market: (230, 31)
Devil's Eye
Devil's Eye
You can get this item by hunting monsters or by buying it from NPC 'Lumen the Barmaid'
Devil's Key
Devil's Key
You can get this item by hunting monsters or by buying it from NPC 'Lumen the Barmaid'

Devil Square Invitation Combination

Devil Square Success Rate Items Zen
1 75% Devil's Key +1 & Devil's Eye +1 100.000
2 70% Devil's Key +2 & Devil's Eye +2 200.000
3 65% Devil's Key +3 & Devil's Eye +3 400.000
4 60% Devil's Key +4 & Devil's Eye +4 700.000
5 55% Devil's Key +5 & Devil's Eye +5 1.100.000
6 50% Devil's Key +6 & Devil's Eye +6 1.600.000
7 45% Devil's Key +7 & Devil's Eye +7 2.000.000

Item Drop

Item Monster Level Drop
Devil's Key +1 & Devil's Eye +1 Level 3
Devil's Key +2 & Devil's Eye +2 Level 36
Devil's Key +3 & Devil's Eye +3 Level 47
Devil's Key +4 & Devil's Eye +4 Level 60
Devil's Key +5 & Devil's Eye +5 Level 70
Devil's Key +6 & Devil's Eye +6 Level 80
Devil's Key +7 & Devil's Eye +7 Level 90

Reward

The event reward is Experience and Zen, based on your final ranking.

The higher you are in the ranking, the more you will receive. Event points are earned by killing monsters, and you must survive the event in order to be ranked and receive the reward.

Devil Square1st place2nd place3rd place4th place
11.07B Exp
3M Zen
536.87M Exp
2.5M Zen
268.44M Exp
2M Zen
134.22M Exp
1.5M Zen
22.15B Exp
30M Zen
1.29B Exp
25M Zen
773.09M Exp
20M Zen
463.86M Exp
15M Zen
320B Exp
30M Zen
15B Exp
25M Zen
10B Exp
20M Zen
5B Exp
15M Zen
448B Exp
30M Zen
32B Exp
25M Zen
20B Exp
20M Zen
10B Exp
15M Zen
5100B Exp
30M Zen
80B Exp
25M Zen
40B Exp
20M Zen
20B Exp
15M Zen
660B Exp
30M Zen
40B Exp
25M Zen
20B Exp
20M Zen
10B Exp
15M Zen

In addition to the above, a "Mastery Box" is added.

Only the Master Level of the events can get the compensation.

The "Mastery Box" contains the new currency, Ruud Items and other items.

How to get the Mastery Box:

According to the points obtained in the events you can obtain a Mastery Box. The reward will be paid at the end in the "Gremory Case" System.

  • Whether you participate individually or in a party, you must kill monsters.

There are 3 Types of Mastery Box.

Mastery Box (Low)
Mastery Box (Low)
Mastery Box (Intermediate)
Mastery Box (Intermediate)
Mastery Box (Advanced)
Mastery Box (Advanced)

Rules

Minimum Players: 1
Maximum Players: 10

  • The Devil's Square Invitation will be removed from your inventory when you enter Devil Square.
  • Each character can play this event a limited times per day. 
  • If you die in Devil Square you will not lose experience, zen or drop items.
  • If the character has 'PK status', they will not be able to enter the Devil Square.
  • Party is allowed and can be formed inside the Devil Square.
  • The warp command can be used after entering the Devil Square.
  • The player who uses 'Town portal scroll' in Devil Square will return to Noria.
  • Players remaining in Devil Square after its completion will be returned to Noria.
  • PVP is not allowed.

Monsters

Devil Square 1

Shadow
Shadow
Waves: minute 0 ~ 7
Level 47Health 2.800Attack 148 ~ 153Defense 78Defense Rate 67
Poison Shadow
Poison Shadow
Waves: minute 0 ~ 7
Level 50Health 3.500Attack 155 ~ 160Defense 85Defense Rate 73
Death Cow
Death Cow
Waves: minute 5 ~ 10
Level 57Health 4.500Attack 170 ~ 180Defense 110Defense Rate 85
Death Knight
Death Knight
Waves: minute 5 ~ 10
Level 62Health 5.500Attack 190 ~ 200Defense 120Defense Rate 91
Bloody Wolf
Bloody Wolf
Waves: minute 10 ~ 14
Level 76Health 13.500Attack 260 ~ 300Defense 200Defense Rate 130
Gorgon
Gorgon
Boss — appears at minute 1, 2
Level 55Health 6.000Attack 165 ~ 175Defense 100Defense Rate 82
Ice Queen
Ice Queen
Boss — appears at minute 3, 4
Level 52Health 4.000Attack 155 ~ 165Defense 90Defense Rate 76
Hydra
Hydra
Boss — appears at minute 5, 6
Level 74Health 19.000Attack 250 ~ 310Defense 200Defense Rate 125
Balrog
Balrog
Boss — appears at minute 7, 8
Level 66Health 17.000Attack 220 ~ 240Defense 160Defense Rate 99
Golden Derkon
Boss — appears at minute 9, 11
Level 80Health 23.000Attack 300 ~ 350Defense 230Defense Rate 90
Golden Wheel
Boss — appears at minute 9, 12
Level 77Health 15.000Attack 320 ~ 360Defense 230Defense Rate 160
Golden Tantalos
Boss — appears at minute 10, 12
Level 90Health 30.000Attack 450 ~ 560Defense 300Defense Rate 185

Devil Square 2

Ferea Archer
Ferea Archer
Waves: minute 5 ~ 10
Level 122Health 98.000Attack 1500 ~ 1600Defense 1180Defense Rate 570
Ferea Fighter
Ferea Fighter
Waves: minute 5 ~ 10
Level 123Health 120.000Attack 1250 ~ 1300Defense 1355Defense Rate 610
Bass
Bass
Waves: minute 10 ~ 14
Level 194Health 120.000Attack 1500 ~ 1600Defense 1400Defense Rate 2500
Old Crimson Lycan
Old Crimson Lycan
Waves: minute 0 ~ 7
Level 195Health 200.000Attack 2650 ~ 2750Defense 1600Defense Rate 750
Old Crimson Harpy
Old Crimson Harpy
Waves: minute 0 ~ 7
Level 195Health 220.000Attack 2450 ~ 2550Defense 1700Defense Rate 850
Zaikan
Zaikan
Boss — appears at minute 1, 2
Level 90Health 34.000Attack 510 ~ 590Defense 400Defense Rate 185
Phoenix of Darkness
Phoenix of Darkness
Boss — appears at minute 3, 4
Level 108Health 75.000Attack 695 ~ 740Defense 510Defense Rate 350
Hell Maine
Hell Maine
Boss — appears at minute 5, 6
Level 98Health 50.000Attack 550 ~ 600Defense 520Defense Rate 300
Golden Iron Knight
Boss — appears at minute 7, 8
Level 145Health 200.000Attack 1743 ~ 2092Defense 650Defense Rate 840
Golden Napin
Boss — appears at minute 9, 10
Level 112Health 77.000Attack 1441 ~ 2017Defense 585Defense Rate 840
Great Golden Dragon
Boss — appears at minute 12
Level 142Health 95.000Attack 1917 ~ 2301Defense 660Defense Rate 800

Devil Square 3

Deep Dungeon Ghost
Deep Dungeon Ghost
Waves: minute 0 ~ 7
Level 187Health 214.987Attack 2580 ~ 2684Defense 1779Defense Rate 890
Deep Dungeon Hellhound
Deep Dungeon Hellhound
Waves: minute 0 ~ 7
Level 196Health 225.736Attack 2631 ~ 2737Defense 1814Defense Rate 908
Deep Dungeon Cyclops
Deep Dungeon Cyclops
Waves: minute 5 ~ 10
Level 206Health 237.023Attack 2684 ~ 2792Defense 1850Defense Rate 926
Deep Dungeon Thunder Lich
Deep Dungeon Thunder Lich
Waves: minute 5 ~ 10
Level 216Health 248.874Attack 2738 ~ 2848Defense 1887Defense Rate 945
Deep Dungeon Skeleton Warrior
Deep Dungeon Skeleton Warrior
Waves: minute 10 ~ 14
Level 227Health 261.318Attack 2792 ~ 2905Defense 1925Defense Rate 963
Hellraiser
Hellraiser
Boss — appears at minute 1, 2
Level 113Health 9.000Attack 600 ~ 630Defense 475Defense Rate 305
Sylphid
Sylphid
Boss — appears at minute 3, 4
Level 113Health 9.500Attack 635 ~ 675Defense 475Defense Rate 315
Gnome
Gnome
Boss — appears at minute 5, 6
Level 113Health 12.000Attack 590 ~ 635Defense 545Defense Rate 295
Salamander
Salamander
Boss — appears at minute 7, 8
Level 113Health 10.000Attack 620 ~ 655Defense 495Defense Rate 315
Undine
Undine
Boss — appears at minute 9, 10
Level 113Health 11.100Attack 600 ~ 635Defense 515Defense Rate 315
Erohim
Erohim
Boss — appears at minute 12
Level 128Health 3.000.000Attack 1500 ~ 2000Defense 1000Defense Rate 800

Devil Square 4

Deep Dungeon Poison Bull Fighter
Deep Dungeon Poison Bull Fighter
Waves: minute 0 ~ 7
Level 263Health 302.509Attack 2963 ~ 3083Defense 2043Defense Rate 1022
Wooden Beast
Wooden Beast
Waves: minute 5 ~ 10
Level 275Health 1.130.000Attack 4815 ~ 5010Defense 2895Defense Rate 1288
Swamp Wizard
Swamp Wizard
Waves: minute 5 ~ 10
Level 275Health 1.205.000Attack 4955 ~ 5215Defense 3162Defense Rate 1393
Mutantile
Mutantile
Waves: minute 10 ~ 14
Level 275Health 1.215.000Attack 4875 ~ 5105Defense 3196Defense Rate 1396
Deep Dungeon Dark Knight
Deep Dungeon Dark Knight
Waves: minute 0 ~ 7
Level 276Health 317.634Attack 3023 ~ 3145Defense 2084Defense Rate 1043
Deep Dungeon Gorgon
Deep Dungeon Gorgon
Boss — appears at minute 2, 4, 6, 8, 10
Level 300Health 40.000.000Attack 4925 ~ 5025Defense 2989Defense Rate 1356

Devil Square 5

Scotched Warrior
Scotched Warrior
Waves: minute 0 ~ 7
Level 470Health 2.293.750Attack 10250 ~ 10450Defense 6445Defense Rate 2857
Scorched Assasin
Scorched Assasin
Waves: minute 0 ~ 7
Level 470Health 2.145.700Attack 7000 ~ 7300Defense 6325Defense Rate 2860
Scorched Wizard
Scorched Wizard
Waves: minute 5 ~ 10
Level 480Health 2.248.000Attack 12900 ~ 13500Defense 6345Defense Rate 3080
Temple Gremlin
Waves: minute 5 ~ 10
Level 525Health 2.882.700Attack 10800 ~ 10950Defense 6975Defense Rate 3660
Underground Dreadfear
Underground Dreadfear
Waves: minute 10 ~ 14
Level 620Health 4.175.000Attack 18600 ~ 19100Defense 9160Defense Rate 5060
Crimson Harpy
Crimson Harpy
Waves: minute 10 ~ 14
Level 650Health 5.050.125Attack 21364 ~ 22050Defense 10060Defense Rate 5688
(Elite) Scorched Warrior
(Elite) Scorched Warrior
Boss — appears at minute 1
Level 540Health 2.348.000Attack 13900 ~ 13950Defense 7345Defense Rate 3080
(Elite) Scorched Assassins
(Elite) Scorched Assassins
Boss — appears at minute 2
Level 545Health 2.848.000Attack 14900 ~ 14300Defense 8345Defense Rate 3090
(Elite) Scorched Wizard
(Elite) Scorched Wizard
Boss — appears at minute 3
Level 550Health 3.048.000Attack 15900 ~ 15950Defense 8945Defense Rate 4000
(Elite) Great Drakan
(Elite) Great Drakan
Boss — appears at minute 4
Level 510Health 2.722.700Attack 9500 ~ 9950Defense 7215Defense Rate 3660
(Elite) Temple Ogre
(Elite) Temple Ogre
Boss — appears at minute 5
Level 530Health 3.082.700Attack 16600 ~ 17050Defense 7495Defense Rate 4080
(Elite) Temple Gremlin
Boss — appears at minute 6
Level 530Health 3.127.000Attack 11000 ~ 11150Defense 7475Defense Rate 3860
(Elite) Temple Gargoyle
(Elite) Temple Gargoyle
Boss — appears at minute 7
Level 530Health 3.227.000Attack 11800 ~ 12450Defense 8100Defense Rate 4146
(Elite) Ashy Golem
(Elite) Ashy Golem
Boss — appears at minute 8
Level 560Health 3.477.000Attack 17400 ~ 17950Defense 8500Defense Rate 4446
(Elite) Ashy Bloody Witch Queen
(Elite) Ashy Bloody Witch Queen
Boss — appears at minute 9
Level 560Health 3.577.000Attack 14300 ~ 15050Defense 7945Defense Rate 4480
(Elite) Crimson Lycan
(Elite) Crimson Lycan
Boss — appears at minute 10
Level 660Health 5.075.250Attack 23190 ~ 24540Defense 9876Defense Rate 5740
(Elite) Crimson Minos
(Elite) Crimson Minos
Boss — appears at minute 11
Level 660Health 5.076.255Attack 20791 ~ 21491Defense 10085Defense Rate 5934
(Elite) Underground Persona
(Elite) Underground Persona
Boss — appears at minute 12
Level 620Health 4.201.000Attack 20600 ~ 21300Defense 8250Defense Rate 5300
(Elite) Underground Twin Tale
(Elite) Underground Twin Tale
Boss — appears at minute 13
Level 620Health 4.343.000Attack 18100 ~ 18700Defense 8800Defense Rate 5490
(Elite) Underground Dreadfear
(Elite) Underground Dreadfear
Boss — appears at minute 14
Level 620Health 4.425.000Attack 19000 ~ 19600Defense 8600Defense Rate 5360

Devil Square 6

Magma Hook
Magma Hook
Waves: minute 0 ~ 7
Level 750Health 6.045.742Attack 27539 ~ 27846Defense 10192Defense Rate 6432
Magma Shaman
Magma Shaman
Waves: minute 0 ~ 7
Level 750Health 6.040.100Attack 26456 ~ 28177Defense 10040Defense Rate 6468
Bloody Beam Knight
Bloody Beam Knight
Waves: minute 5 ~ 14
Level 800Health 6.522.750Attack 28088 ~ 28188Defense 10034Defense Rate 6848
Storm Reaper
Storm Reaper
Waves: minute 5 ~ 14
Level 850Health 7.087.500Attack 31500 ~ 32500Defense 10900Defense Rate 7016
Storm Fiend
Storm Fiend
Waves: minute 12 ~ 20
Level 850Health 7.120.000Attack 30900 ~ 31100Defense 11000Defense Rate 7220
Twisted Condra
Twisted Condra
Waves: minute 12 ~ 20
Level 900Health 7.547.200Attack 32909 ~ 33122Defense 11950Defense Rate 8110
(Elite) Magma Gladiator
(Elite) Magma Gladiator
Boss — appears at minute 1
Level 760Health 6.087.423Attack 25990 ~ 26092Defense 12268Defense Rate 6860
(Elite) Magma Hook
(Elite) Magma Hook
Boss — appears at minute 2
Level 760Health 6.398.820Attack 28089 ~ 28402Defense 10599Defense Rate 6560
(Elite) Magma Shaman
(Elite) Magma Shaman
Boss — appears at minute 3
Level 760Health 6.437.933Attack 26985 ~ 28740Defense 10441Defense Rate 6597
(Elite) Bloody Wolf
(Elite) Bloody Wolf
Boss — appears at minute 4
Level 810Health 7.043.619Attack 29116 ~ 29586Defense 10853Defense Rate 6861
(Elite) Bloody Beam Knight
(Elite) Bloody Beam Knight
Boss — appears at minute 5
Level 810Health 7.032.225Attack 28649 ~ 28751Defense 10435Defense Rate 6984
(Elite) Bloody Tantalus
(Elite) Bloody Tantalus
Boss — appears at minute 6
Level 810Health 7.042.225Attack 30999 ~ 32348Defense 13119Defense Rate 7340
(Elite) Storm Guard
(Elite) Storm Guard
Boss — appears at minute 7
Level 860Health 7.207.219Attack 30240 ~ 30975Defense 12966Defense Rate 7665
(Elite) Storm Reaper
(Elite) Storm Reaper
Boss — appears at minute 8
Level 860Health 7.300.125Attack 33075 ~ 34125Defense 10637Defense Rate 7494
(Elite) Storm Fiend
(Elite) Storm Fiend
Boss — appears at minute 9
Level 860Health 7.333.600Attack 32445 ~ 32655Defense 10838Defense Rate 6829
(Elite) Twisted Crypta
(Elite) Twisted Crypta
Boss — appears at minute 10
Level 910Health 7.639.652Attack 32206 ~ 32988Defense 12650Defense Rate 8250
(Elite) Twisted Gollock
(Elite) Twisted Gollock
Boss — appears at minute 11
Level 910Health 7.738.133Attack 35925 ~ 36943Defense 12100Defense Rate 7590
(Elite) Twisted Condra
(Elite) Twisted Condra
Boss — appears at minute 12
Level 910Health 7.773.616Attack 34554 ~ 34778Defense 12150Defense Rate 7810

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