Chaos Castle
All realms
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Events
MU Online Events and Castle Siege Schedule in Your Timezone
Every MU Online event on MUOnline.ai, counted down in your own timezone. Castle Siege runs every Saturday from 21:00 to 22:00 UTC on both the Permanent Realm and the Speed Realm Autumn Edition.
Magbasa pa
Blood Castle opens 22 times a day, and Chaos Castle, Crywolf, Boss Battle Together, Arca War and Icewind Valley follow fixed UTC times read from the server's event files.
Upcoming events
Ipinapakita ang oras sa UTC – Palitan
Current time in selected zone:
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Event type
Realm
Blood Castle
All realms
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View full schedule – Blood Castle
Icewind Valley
Permanent Realm
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View full schedule – Icewind Valley, Permanent Realm
Arca War
Permanent Realm
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View full schedule – Arca War, Permanent Realm
Crywolf
All realms
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View full schedule – Crywolf
Boss Battle Together
All realms
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View full schedule – Boss Battle Together
Castle Siege
Permanent Realm
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View full schedule – Castle Siege, Permanent Realm
Events are sorted by the next start time. Cards below are shown in your selected timezone, with live and registering events highlighted.
Countdown ng registration
Natitirang oras bago magbukas ang registration ng bawat event sa bawat realm. Kapag gold ang cell, bukas na ngayon ang registration at nagka-countdown na ito papunta sa start ng event.
| Event | Permanent Realm |
|---|---|
| Chaos Castle | --:--:-- |
| Blood Castle | --:--:-- |
| Icewind Valley | --:--:-- |
| Arca War | --:--:-- |
| Crywolf | --:--:-- |
| Boss Battle Together | --:--:-- |
| Castle Siege | --:--:-- |
Buong lingguhang schedule ng events (UTC at CEST)
Bawat oras ng simula sa ibaba ay kinuha mula sa event files ng server. UTC ang server time; ang CEST column ay Central European time, na UTC+2 (CEST) hanggang sa huling Linggo ng Oktubre at UTC+1 (CET) pagkatapos nito.
| Event | Realm | Mga araw | Simula (UTC) | Simula (CEST) | Tagal | Mga kondisyon |
|---|---|---|---|---|---|---|
| Castle Siege | Permanent Realm | Saturday (lingguhan) | 21:00 | 23:00 | 60 min | Guild laban sa guild. Magre-register ang guild master sa registration stage, na nagbubukas sa cycle day 0 nang 16:00 UTC (Sunday sa schedule na ito). |
| Blood Castle | Parehong realm | Araw-araw | 00:10, 00:40, 01:10, 01:40, 02:10, 02:40, 03:10, 03:40, 05:10, 07:10, 09:10, 11:10, 13:10, 15:10, 17:10, 19:10, 21:10, 21:40, 22:10, 22:40, 23:10, 23:40 | 02:10, 02:40, 03:10, 03:40, 04:10, 04:40, 05:10, 05:40, 07:10, 09:10, 11:10, 13:10, 15:10, 17:10, 19:10, 21:10, 23:10, 23:40, 00:10, 00:40, 01:10, 01:40 | 15 min | Bumubukas ang gate 5 min bago ang bawat simula. Mga level bracket: 50–399, 400–799, 800–899, 900–1099, 1100–1299, 1300–1499, 1500+. |
| Chaos Castle | Parehong realm | Araw-araw | 01:00, 15:00, 17:00, 19:00, 21:00, 23:00 | 03:00, 17:00, 19:00, 21:00, 23:00, 01:00 | 15 min | Bukas ang entry sa nakalistang oras; magsisimula ang laban pagkalipas ng 5 min. Mga level bracket: 50–399, 400–799, 800–899, 900–1099, 1100–1299, 1300–1499, 1500+. |
| Crywolf | Parehong realm | Araw-araw | 02:10, 05:10, 08:10, 11:10, 14:10, 17:10, 20:10, 23:10 | 04:10, 07:10, 10:10, 13:10, 16:10, 19:10, 22:10, 01:10 | 15 min na laban | Walang registration; sa Crywolf Fortress nilalabanan ang Balgass invasion. |
| Boss Battle Together | Parehong realm | Araw-araw | 00:15, 04:15, 08:15, 12:15, 16:15, 20:15 | 02:15, 06:15, 10:15, 14:15, 18:15, 22:15 | 5 min | Bukas ang entry 5 min bago ang simula. Max 100 players bawat round. |
| Arca War | Permanent Realm | Mon, Wed, Fri, Sat | 00:00, 08:00, 14:00, 20:00 | 02:00, 10:00, 16:00, 22:00 | 10 min | Mga guild na may hindi bababa sa 10 members. Unang magre-register ang guild master (5 min), susunod ang members (5 min). |
| Icewind Valley | Permanent Realm | Araw-araw | 07:30, 19:30 | 09:30, 21:30 | 60 min | Mga guild na may 10–50 members. Ita-type ng guild master ang /regicewind sa 5-min registration window bago ang bawat simula. |
Daily event entries ayon sa VIP level
| Event | Walang VIP – VIP5 | VIP6 | VIP7+ |
|---|---|---|---|
| Chaos Castle | 2 | 3 | 4 |
| Blood Castle | 5 | 6 | 7 |
| Devil Square | 5 | 6 | 7 |
| Imperial Fort | 2 | 3 | 4 |
| Illusion Temple | 2 | 3 | 4 |
| Doppelganger | 3 | 4 | 5 |
| Boss Battle Together | 2 | 3 | 4 |
Entries bawat account kada araw. Ang events na nandito pero wala sa schedule sa itaas ay walang timetable sa event files ng server, kaya entry limits lang nila ang nakalista.
On this page (7)
Which event times differ between the two realms?
Blood Castle, Chaos Castle, Crywolf, Boss Battle Together and Castle Siege share one schedule; only the guild events differ, so set the realm switch on the countdown cards to the realm you play.
| Event | Permanent Realm (5000x EXP) | Speed Realm Autumn Edition (99,999x EXP) |
|---|---|---|
| Arca War (Mon, Wed, Fri, Sat) | 00:00, 08:00, 14:00, 20:00 UTC | 01:00, 07:00, 13:00, 19:00 UTC |
| Icewind Valley (daily) | 07:30 and 19:30 UTC (2x a day) | Every 3 hours from 00:30 UTC (8x a day) |
| Icewind Valley guild size | 10 to 50 members | 10 to 20 members |
Castle Siege on MUOnline.ai – schedule, registration and rewards
When is Castle Siege? Saturday 21:00-22:00 UTC (60 minutes)
The battle starts every Saturday at 21:00 UTC (23:00 CEST) and ends at 22:00 UTC on both realms.
Weekly cycle: registration, Sign of Lord, preparation, battle
The server runs a 7-day cycle. The site's schedule maps cycle day 0 to Sunday, which gives this week:
| Stage | Starts (UTC) |
|---|---|
| Guild registration | Sunday 16:00 |
| Sign of Lord registration | Thursday 00:00 |
| Attacking guilds announced | Friday 00:00 |
| Siege battle | Saturday 21:00-22:00 |
| Cycle ends, next registration | Sunday 16:00 |
How to register
As in Webzen's rules:
- The guild master registers the guild at the Castle Siege NPC in the Valley of Loren during the registration stage.
- In the Sign of Lord stage, the guild hands in Signs of Lord to raise its rank.
- The top-ranked guilds are named as attackers and face the castle owner on Saturday.
Webzen's rules also ask for a guild of 20 or more members.
How the crown and switch work
As in Webzen's game, attackers hold the crown switches so their guild master can reach the crown and register the Seal. On MUOnline.ai any guild member can operate a crown switch, only the guild master can use the crown, and friendly fire is off during the siege.
What the winning guild gets
Under Webzen's rules, the winning guild master becomes Lord of MU, with access to the Land of Trials and control of the merchant tax. On this server the castle Lord Mix is limited to the guild master, once a day. Join Discord through the community page for siege announcements, and check guild standings on the Permanent Realm ranking or the Speed Realm ranking. For tactics, read the Castle Siege guide.
Blood Castle – 22 entries a day
All 22 start times (UTC)
03:10, 03:40, then every two hours from 05:10 to 21:10, then every 30 minutes from 21:40 to 02:40. The gate opens five minutes before each start and a run lasts 15 minutes. Each player needs 200 monster kills, and a team can finish early once 60 seconds have passed.
Which Blood Castle for your level
| Blood Castle | Character level |
|---|---|
| BC1 | 50-399 |
| BC2 | 400-799 |
| BC3 | 800-899 |
| BC4 | 900-1099 |
| BC5 | 1100-1299 |
| BC6 | 1300-1499 |
| BC7 | 1500 and up |
Daily entry limits by VIP level
Standard accounts enter Blood Castle five times a day, VIP6 six times and VIP7 or higher seven times. You need the event's entry item; check the item database before the gate opens.
Chaos Castle, Crywolf and Boss Battle Together
Chaos Castle: six starts a day, same level brackets as Blood Castle
Chaos Castle starts at 01:00, 15:00, 17:00, 19:00, 21:00 and 23:00 UTC. Entry opens five minutes before the start and the fight lasts 15 minutes. Daily entries: 2 standard, 3 for VIP6, 4 for VIP7 and higher.
Crywolf: 02:10, 05:10, 08:10, 11:10, 14:10, 17:10, 20:10, 23:10 UTC
Crywolf starts eight times a day, every three hours from 02:10 UTC, on both realms.
Boss Battle Together: every 4 hours from 00:15 UTC, max 100 players, 5 minutes
Boss Battle Together runs at 00:15, 04:15, 08:15, 12:15, 16:15 and 20:15 UTC. Entry opens five minutes early, a 30-second countdown follows, and the fight lasts five minutes with room for 100 players. Daily entries follow the same 2 / 3 / 4 split as Chaos Castle.
Guild events: Arca War and Icewind Valley
Arca War: Mon/Wed/Fri/Sat, four rounds a day, 10 minutes, guilds of 10+
Arca War runs on Monday, Wednesday, Friday and Saturday. A guild needs at least 10 members. The guild master registers first, members have five minutes to follow, and each round lasts 10 minutes. The tower buff adds 20% EXP.
Icewind Valley: 8x a day on the Speed Realm, 2x a day on the Permanent Realm
- Speed Realm Autumn Edition: every three hours from 00:30 UTC, guilds of 10 to 20 members.
- Permanent Realm: 07:30 and 19:30 UTC, guilds of 10 to 50 members.
On both realms the guild master types /regicewind in the five-minute window before the start, and each round lasts 60 minutes. The event config holds separate reward bags for guild masters and guild members. The 99,999x seasonal realm is built for a short season, so Icewind Valley runs there far more often (8x a day against 2x on the Permanent Realm).
Event tips: entering, party play and where to go next
- Check your level bracket before the five-minute entry window opens.
- Use the realm switch on the cards so you only see times for the realm you play.
- On a new character, type /evoquest for a fast class upgrade before your first Blood Castle.
- Pick a siege-ready class on the class guides and see event items on the item database.
- Compare rates and rules on the realm page, find vote rewards on the community page, and read server announcements in the news section.
MU Online events FAQ
When is Castle Siege on MUOnline.ai?
Castle Siege is fought every Saturday from 21:00 to 22:00 UTC (23:00 to 00:00 CEST) on both the Permanent Realm and the Speed Realm Autumn Edition. It lasts 60 minutes. The site's schedule opens registration on Sunday at 16:00 UTC.
How do I register for Castle Siege?
As in Webzen's rules, your guild master registers the guild at the Castle Siege NPC in the Valley of Loren during the registration stage, then the guild hands in Signs of Lord to raise its rank. The top-ranked guilds attack the castle owner on Saturday. Webzen's rules also ask for 20 or more guild members.
How many times a day does Blood Castle run?
22 times a day on each realm: 03:10, 03:40, every two hours from 05:10 to 21:10, and every 30 minutes from 21:40 to 02:40 UTC. Standard accounts enter five times a day, VIP6 six times and VIP7 or higher seven times.
Which Blood Castle or Chaos Castle do I enter at my level?
Both use seven brackets: 1 for levels 50-399, 2 for 400-799, 3 for 800-899, 4 for 900-1099, 5 for 1100-1299, 6 for 1300-1499 and 7 from level 1500. Chaos Castle starts at 01:00, 15:00, 17:00, 19:00, 21:00 and 23:00 UTC.
What do I need for Arca War?
A guild with at least 10 members. Arca War runs Monday, Wednesday, Friday and Saturday at 01:00, 07:00, 13:00 and 19:00 UTC on the Speed Realm Autumn Edition and at 00:00, 08:00, 14:00 and 20:00 UTC on the Permanent Realm. Members have five minutes to join after the guild master registers; each round lasts 10 minutes.
When is Icewind Valley, and why does the Speed Realm have it 8 times a day?
On the Speed Realm Autumn Edition it starts every three hours from 00:30 UTC for guilds of 10 to 20 members; on the Permanent Realm at 07:30 and 19:30 UTC for guilds of 10 to 50. The seasonal 99,999x realm is built for a short season, so Icewind Valley runs there far more often (8x a day against 2x on the Permanent Realm).
Are the event times the same on both realms?
Blood Castle, Chaos Castle, Crywolf, Boss Battle Together and Castle Siege share one schedule. Arca War runs on the same days on both realms at different hours, and Icewind Valley runs 8x a day on the Speed Realm Autumn Edition against 2x on the Permanent Realm.
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