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Ultima's Dungeon guide: times, entry rules, Destroying Strike and rewards

Knight Online Ultima's Dungeon runs at 10:00 and 21:30 Turkey time. Level 80 and 50 Ladder Points, rooms of up to 30, the seal, escaping the Destroying Strike and the Fragment rewards for each stage you survive.

Updated 17.10.2026 3 min read 8 sections
Short answer

Ultima's Dungeon is a rotating boss event. The registration window opens twice a day at 10:00 and 21:30 Turkey time (UTC+3). You need level 80 or higher and at least 50 Ladder Points (monthly NP) on your character when you apply and when registration closes. In a room of up to 30 players you have 30 minutes: break the seal first, then kill Ultima. The reward depends on the stage you survive: Ascent Scroll, Fragment of Arrogance or Fragment of Gluttony.

Contents (8)
  1. 01What is Ultima's Dungeon?
  2. 02Entry requirements
  3. 03How do you enter the dungeon?
  4. 04What happens inside?
  5. 05Destroying Strike and the escape structures
  6. 06Ultima's power
  7. 07Rewards
  8. 08What do the rewards do?

What is Ultima's Dungeon?

In the story, Ultima has invaded the Bifrost map and you go into her lair. Your goal in the dungeon is to kill Ultima, but you first have to destroy the seal before she takes any damage.

It is a rotating event: it has no fixed calendar and runs for set periods. The latest run was announced on 17 September 2026.

Entry requirements

Requirement What you need
Time Twice a day, 10:00 and 21:30 Turkey time
Level 80 or higher
Ladder Points At least 50 (monthly NP) when you apply and when registration closes
Room Up to 30 players, pulled in the order they registered
New room After 30 and each multiple of 30, at least 5 more players must register

To be sure to get in, have 50 Ladder Points.

How do you enter the dungeon?

  1. When the time comes, register in the window that appears on your screen. You are pulled into a room in the order you clicked.
  2. Keep your Ladder Points until registration closes. For example, a player with 90 points dies once in Ronark Land, drops to 40 and cannot enter even though they applied.
  3. If one of the 5 players needed for a new room cannot enter because of missing points, the other 4 cannot enter either. Example: if 1 of 35 applicants is short on points, the first 30 go in; the remaining 4 and the one short on points do not.
  4. To back out, press "Cancel" in the countdown window.

What happens inside?

  • Two minutes after you enter, Ultima and the seal structure appear. The game calls the structure the Center Artifact and says you cannot damage Ultima before you destroy it.
  • The seal only takes fixed damage from the basic attack (R). Bow users have to take their bow off to hit it.
  • You have 30 minutes to kill Ultima.
  • Field ability: at any point Ultima uses a skill centred on whoever she is attacking, and the players around them take damage too. It can take 30% of your health, so standing right next to her target gets you hit as well.

Destroying Strike and the escape structures

When Ultima's health drops to 70%, 40% and 10%, she uses the Destroying Strike, which covers the whole map and hits everyone caught in it hard. The game warns you with a message when it comes.

The moment the strike starts, escape structures appear on four sides of Ultima with a coloured circle around each. The safe spot is exactly inside that circle, and you have 5 seconds from the start of the skill to get there. The escape structures cannot be damaged or targeted.

If nobody dies to a Destroying Strike, Ultima enters a Lethal State for 10 seconds and takes 1.5 times the damage. The game announces it with "Ultima is weakened for 10 seconds. Attack now".

Ultima's power

Players in room Health Defence Damage
4–10 1,000,000 2,683 7,338
10–20 2,000,000 4,025 11,007
20–30 3,000,000 8,051 22,015

Rewards

How long you lasted Reward
Died before the first Destroying Strike No reward
Survived the 1st strike, died before the 2nd Ascent Scroll
Survived the 2nd strike, died before the 3rd Fragment of Arrogance
Survived the 3rd strike, died before Ultima fell Fragment of Gluttony
Finished without dying Fragment of Gluttony and Fragment of Arrogance

Players with a full inventory get no reward. A 30-day Lunar Tattoo can also come out of the boss box: the bigger your share of the damage to the boss, the higher the chance the box opens for you.

Ascent Scroll
Ascent ScrollSurvived the 1st strike
Fragment of Arrogance
Fragment of ArroganceSurvived the 2nd strike
Fragment of Gluttony
Fragment of GluttonySurvived the 3rd strike
Lunar Tattoo
Lunar TattooBoss box, 30 days

What do the rewards do?

  • Ascent Scroll: raises the base EXP you get from killing monsters by 20% for an hour.
  • Fragment of Arrogance and Fragment of Gluttony: fragments sealed with one of the seven disasters, and you can obtain a powerful item from them.
  • Do not mix them up with the Dark Fragments in Bifrost; those are separate items (Bifrost guide).

Frequently asked

Twice a day, at 10:00 and 21:30 Turkey time (UTC+3).

Level 80 or higher. You also need at least 50 Ladder Points (monthly NP) when you apply and when registration closes.

Up to 30 per room. After 30 and each multiple of 30, at least 5 more players must register for a new room to open.

When the strike starts, escape structures appear on four sides of Ultima. Get inside the coloured circle around one of them within 5 seconds.

Depending on the stage you survive: Ascent Scroll, Fragment of Arrogance or Fragment of Gluttony; finish without dying and you get both Fragments. A 30-day Lunar Tattoo can also come out of the boss box.

The seal only takes the basic attack (R). If you use a bow, take it off first.