FAQ / GAME GUIDE / WIKI

Events, items, systems, quests and progression guides. Read the full game guide below.

FAQ KNOWLEDGE BASE

Browse game systems, events, items and progression guides.

Choose a category or search the wiki.

Blood Castle

Blood Castle Event in Mu online. One of the strongest warriors in the Continent of MU, the Archangel; has secretly been laying watch over the lands that he has sworn to protect. As Kundun's presence approaches, the Archangel has been warding off all the monsters trying to invade the Continent of MU. But alas, our Guardian Archangel can not fend on his own forever...

LAST UPDATED30.08.2026 22:11

Blood Castle

One of the strongest warriors in the Continent of MU, the Archangel; has secretly been laying watch over the lands that he has sworn to protect. As Kundun's presence approaches, the Archangel has been warding off all the monsters trying to invade the Continent of MU. But alas, our Guardian Archangel can not fend on his own forever. Kundun's Army has invaded his Castle and has overcome the strength of the Archangel. The Archangel, Injured and in peril; summons forth the warriors of MU, to come aid him in his most dire time of need. Unable to summon his strengths without his Divine Weapon of Archangel, you have been asked to infiltrate this now over ridden Castle and retrieve his weapon for him. Fight thru the bridge and gain entrance into the castle. Be the first to retrieve the Divine Weapon of Archangel, and return it to him will complete the event. With the Cloak of Invisibility, you will be allowed onto the castle grounds. Will you be able to infiltrate the castle and retrieve what is needed without fear?

How to play

 

Main Mission: Destroy the statue and return the weapon to its owner. Kill the number of monsters indicated in the lower right corner. (The number of monsters depends on the number of participants.) Destroy the Castle Gate. Kill the number of 'Magic Skeleton' indicated in the lower right corner. (The number of 'Magic Skeleton' depends on the number of participants.) Destroy the crystal statue. Pick up the Archangel Weapon, which drops after destroying the Spirit Statue, and return it to its owner.When you return the weapon the monsters will disappear, you decide if you want to continue hunting monsters or end the event.

Owner of the weapon that you must pick up in the event

How to enter

To enter the Blood Castle, you need a Cloak of Invisibility and go to Devias to talk to the NPC Messenger of Archangel which will send you to the event map and you need to talk to the NPC Spirit of Archangel .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 Cloak of Invisibility to the NPC Spirit of Archangel can enter.

Item used to enter the Blood Castle

                          Admission Notification 

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. 

[Location]
Devias: (210, 29)

[Location]
Devias: (218, 9)

[Location]
Event Square: (188, 92)

Blood Castle level range

 

Blood CastleCharacter Level
11 ~ 80
281 ~ 130
3131 ~ 180
4181 ~ 230
5231 ~ 280
6281 ~ 330
7331 ~ MAX

 

How to get the Cloak of Invisibility

To get the Cloak of Invisibility you must go to the Chaos Goblin Machine and select the "Regular Combination" option and enter the following items.

 

Required Combination Material:

  1. Archangel Scroll
  2. Blood Bone
  3. Jewel of Chaos
  4. Zen

* Only items of the same level can be combined to create the Cloak of Invisibility for that specific Blood Castle.

Probability: 80%

Successful Result: Cloak of Invisibility.

Failed Result: All items will be destroyed.

[Location]

Noria: 180, 102

Archangel Scroll

You can get this item by hunting monsters or by buying it from NPC

'Lumen the Barmaid'

Blood Bone

You can get this item by hunting monsters or by buying it from NPC

'Lumen the Barmaid'

Invisibility Cloak Combination

Item Drop

Blood Castle Success Rate Items Zen
1 80% Archangel Scroll +1 & Blood Bone +1 50.000
2 Archangel Scroll +2 & Blood Bone +2 80.000
3 Archangel Scroll +3 & Blood Bone +3 150.000
4 Archangel Scroll +4 & Blood Bone +4 250.000
5 Archangel Scroll +5 & Blood Bone +5 400.000
6 Archangel Scroll +6 & Blood Bone +6 600.000
7 Archangel Scroll +7 & Blood Bone +7 850.000
Item Monster Level Drop
Archangel Scroll +1 & Blood Bone +1 Level 2
Archangel Scroll +2 & Blood Bone +2 Level 32
Archangel Scroll +3 & Blood Bone +3 Level 45
Archangel Scroll +4 & Blood Bone +4 Level 57
Archangel Scroll +5 & Blood Bone +5 Level 68
Archangel Scroll +6 & Blood Bone +6 Level 76
Archangel Scroll +7 & Blood Bone +7 Level 84

Reward

The reward Exp rate will be given by each level when the event is completed.

There are 3 different levels:

  1. Destroy the castle gate.
  2. Destroy the crystal statue.
  3. Return the weapon to the Archangel.

There will be an additional exp rate depending on the event completion time.

The player or party member who survived after completing the event will receive 1 Jewel of Chaos . (1 for each party member)

For the party member who completed all the levels the reward Exp rate below will be given.

Blood Castle
A
Destroy the Gate
B
Destroy the Statue
C
Return the Weapon
D
Time Multiplier
1 20.000 20.000 5.000 160
2 50.000 50.000 10.000 180
3 80.000 80.000 15.000 200
4 90.000 90.000 20.000 220
5 100.000 100.000 25.000 240
6 110.000 110.000 30.000 260
7 120.000 120.000 35.000 280
Experience Conditions Examples
1 Player who destroys the gate, destroys the statue and returns the weapon. A + B + C + (Seconds remaining * D)
2 Player who destroys the gate and destroys the statue but does not return the weapon. A + B
3 Player who destroys the gate. A
4 Party members who destroyed the gate or destroys the statue and returns the weapon. C + (Seconds remaining * D)

[DROP] Blood Castle

Blood Castle 1
NameTypeLevelLuckSkillExcellentAncientSocket
Ancient itemsItem0 - 0randrand-yes-
Jewels (x2)Item0 - 0-----
Miracle CoinItem0 - 0-----
Blood Castle 2
NameTypeLevelLuckSkillExcellentAncientSocket
Ancient itemsItem0 - 0randrand-yes-
Jewels (x2)Item0 - 0-----
Miracle CoinItem0 - 0-----
Archangel WeaponsItem0 - 0randrand----
Blood Castle 3
NameTypeLevelLuckSkillExcellentAncientSocket
Ancient itemsItem0 - 0randrand-yes-
Jewels (x4)Item0 - 0-----
Miracle CoinItem0 - 0-----
Archangel WeaponsItem0 - 0randrand----
Talisman of Luck (3% / 5%)Item0 - 0-----
Talisman of Chaos AssemblyItem0 - 0-----
Blood Castle 4-7
NameTypeLevelLuckSkillExcellentAncientSocket
Ancient itemsItem0 - 0randrand-yes-
Jewels (x5)Item0 - 0-----
Miracle CoinItem0 - 0-----
Archangel WeaponsItem0 - 0randrand----
Talisman of Luck (3% / 5%)Item0 - 0-----
Talisman of Chaos AssemblyItem0 - 0-----
Elemental Talisman of LuckItem0 - 0-----
Elemental Talisman of ChaosItem0 - 0-----
Elemental Rune (1-3)Item0 - 0-----
Seed CapsuleItem0 - 0-----
Ruud Box (1000)Item0 - 0-----
Golden Sentence (x1)Item0 - 0-----
Steel of HeavenItem0 - 0-----
Mysterious StoneItem0 - 0-----

Blood Castle Event Points

Blood Castle
A
B
C
D
E
1 1.000 800 600 300 -300
2 1.005 800 600 300 -300
3 1.010 800 600 300 -300
4 1.015 800 600 300 -300
5 1.020 800 600 300 -300
6 1.025 800 600 300 -300
7 1.030 800 600 300 -300

A: Event points to who returns the Archangel weapon individually.

B: Event points for players who are in the party of the player who returned the Archangel weapon.

C: Event points for the player who survived but did not return the Archangel weapon.

D: Event points for the player one who got killed.

E: Event points for the player who fails to complete the event.

Rules

Maximum Duration: 15 minutes

Minimum Players: 1

Maximum Players: 10

  • Each character can play this event a limit of 4 times per day.
  • If you die in Blood Castle you will not lose experience, zen or drop items.
  • If the character has 'PK status', they will not be able to enter the Blood Castle.
  • Party is allowed and can be formed inside the Blood Castle.
  • The warp command can be used after entering the Blood Castle.
  • The player who uses 'Town portal scroll' in Blood Castle will return to Devias.
  • If the event is finished before 15 minutes, all the monsters will disappear and the Blood Castle will close after 2 minutes, the characters still inside will be returned to Devias.
  • PVP is not allowed.
  • Trade command is not allowed.

 


Sub Quest

In order to do a Sub Quest you must go to the NPC Shadow Phantom Soldier and according to your level complete the mission.

Sub quests can only be done 1 time.

Level Quest Name Quest Requirements Reward
1 - 80 Listen to the Blood Castle Description Press F1 to see the time of Blood Castle 1 -
Get the supplies for Blood Castle Kill 40 Hellhound located in Dungeon Invisibility Cloak +1
Destroy the gate in Blood Castle! Enter a party and destroy the gate of Blood Castle 1 100.000 Zen
Clear Blood Castle! Complete the Archangel quest from Blood Castle 1
100.000 Exp
200.000 Zen
81 - 130 Listen to the Blood Castle Description Press F1 to see the time of Blood Castle 2 -
Get the supplies for Blood Castle Kill 60 Poison Bull located in Dungeon Invisibility Cloak +2
Destroy the gate in Blood Castle! Destroy the gate of Blood Castle 2 200.000 Zen
Clear Blood Castle! Complete the Archangel quest from Blood Castle 2
400.000 Exp
300.000 Zen
131 - 180 Get the supplies for Blood Castle Kill 80 Death Knights located in Losttower Invisibility Cloak +3
Destroy the gate in Blood Castle! Destroy the gate of Blood Castle 3
800.000 Exp
500.000 Zen
Clear Blood Castle! Complete the Archangel quest from Blood Castle 3
1.000.000 Exp
1 Jewel of Chaos
181 - 230 Get the supplies for Blood Castle Kill 80 Mega Crusts located in Icarus Invisibility Cloak +4
Destroy the gate in Blood Castle! Destroy the gate of Blood Castle 4
1 Jewel of Chaos
500.000 Zen
Clear Blood Castle! Complete the Archangel quest from Blood Castle 4 1 Jewel of Soul
231 - 280 Get the supplies for Blood Castle Kill 100 Tantalos located in Tarkan Invisibility Cloak +5
Destroy the gate in Blood Castle! Destroy the gate of Blood Castle 5 1 Jewel of Soul
Clear Blood Castle! Complete the Archangel quest from Blood Castle 5 1 Jewel of Bless
281 - 330 Get the supplies for Blood Castle Kill 100 Phantom Knights located in Icarus Invisibility Cloak +6
Destroy the gate in Blood Castle! Destroy the gate of Blood Castle 6 1 Jewel of Bless
Clear Blood Castle! Complete the Archangel quest from Blood Castle 6 1 Jewel of Life
331 ~ MAX Get the supplies for Blood Castle Kill 100 Twin Tails located in Kantru Relics Invisibility Cloak +7
Destroy the gate in Blood Castle! Destroy the gate of Blood Castle 7 2 Jewel of Soul
Clear Blood Castle! Complete the Archangel quest from Blood Castle 7 2 Jewel of Bless
NextDevil Square