Next session: Friday 21:00 · 4d 09:52
What is Under The Castle?
The game describes it like this: alliances can be formed without national distinction, and you must defeat the bosses and their minions through a total of 4 stages. The NPC's warning is clear too: the bosses are powerful, so you need a good and big party.
In order, the bosses are Mammoth the 3rd, Crasher Gimmick, Purious and Pluwitoon. Other spellings such as Mammoth III, Crashergimmic, Furious and Fluwiton also appear in the game. Mammoth the 3rd's soldiers are [Kapikulu Guard] and [Turkman], and Purious's subordinate is [Garioneus].
How do you get into UTC?
- Be in Moradon before 21:00 on Friday. If you are not in Moradon at opening time, you are not teleported in.
- Between 20:55 and 20:59 talk to [Twilight Observer] Eyre in Moradon and apply through the 'How to enter Under the Castle' menu. If you click the menu again after applying, it tells you the application is complete.
- The selected players are moved in at 21:00: half the places go to the first applicants, half are random. The rest can enter 5 minutes later; after 21:05 anyone can enter freely.
- Without Premium you need 500 ladder points; 500 points are deducted when you apply. Applying again deducts them again.
- Only one character per IP can enter. You cannot enter while your nation is in Lunar War; if it is full, you wait.
- Entry is only open on Friday from 21:00 to 01:00.
Entry requirements
| Requirement | What you need |
|---|---|
| Day and time | Friday 21:00; entry 21:00–01:00 (Turkey time, UTC+3) |
| Application | 20:55–20:59, [Twilight Observer] Eyre in Moradon |
| Selection | Half first come, half random; free entry after 21:05 |
| Without Premium | 500 ladder points deducted when you apply |
| IP | One character per IP |
| Blocker | No entry while your nation is in Lunar War |
| Level | No entry level |
The level 75 you often hear about is the requirement of the UTC weapons, not of the entry. The UTC daily quests start at level 51 and the bombs at level 35.
Useful inside
- Crystal of Life: you revive without penalty when you die in UTC. Eyre gives one a day (the 'Give [Crystal of Life]' menu).
- Fire and Ice bombs (weak, medium, strong) can only be used in UTC; they need level 35, 51 and 61.
- The bosses are strong: the NPC recommends a big, good party. Alliances form regardless of nation.
UTC weapons: [Disciple of Hepa] Shozin
| Material | Amount |
|---|---|
| The weapon's own fragment | 10 |
 Refined gemstone |
15 |
| Chain | 13 |
 Five colored skein of thread |
11 |
 Connected iron |
11 |
 Special leather |
5 |
 Decoration jewel |
5 |
| Aragonite | 1 |
Shozin stands in Moradon (705, 577). The weapons are Khanjar (dagger), Moonlight (jamadar), Buju (spear), Azagai (bow), 
Secret Armor and Trophies
The class materials of Secret Armor are tied to the UTC bosses: 
Shozin also makes two Trophies. 
UTC achievements and titles
| Achievement | Condition | Reward |
|---|---|---|
| Welcome to Under the Castle | Kill Mammoth the 3rd | — |
| Under the Castle I | Kill Crashergimmic and Purious | — |
| Under the Castle II | Kill Pluwitoon and [Destroyer of Flame] Pluwitoon | — |
| Emperor of 1000 years | Mammoth the 3rd to Crashergimmic without dying | Castle Destroyer (+7 Lightning) |
| Darkness, Snakes, and Magic | Kill Purious without dying | Kimera (+7 DEX, +1% CONT) |
| Blocking of Consciousness | Mammoth the 3rd to Pluwitoon without dying | Saved from the Flame (+7 HP, +1% CONT) |
| Flame Destroyer | Mammoth the 3rd and [Destroyer of Flame] Pluwitoon without dying | Fire Destroyer (+7 STR, +1% CONT) |
| True Owner of the Castle | Immortal of Under the Castle I and II | Castle King (+3 HP, +1% CONT) |
| Advancement of Knight | Kill Pluwitoon and Mammoth the 3rd within 20 minutes | — |
The minion achievements (for example 100 [Elite] Safahee Heavy Calvary) reward a 
UTC daily quests
| Quest | Level |
|---|---|
| Species | 51–60 |
| Isaac | 61–70 |
| Dolkin | 71–80 |
| Balmanfae | 81–100 |
| [Twilight Knights] Fire support (Eyre → Martin) | 35–100 |