Expedition
Krao Cave
Krao Cave is an Expedition dungeon for 1–5 players with 3 modes (Exploration, Conquest, Conquest [Hard]). Entry needs item level 200–2,400. Entry from character level 20–45 (the entrance table lists 99 for some modes, above the level cap of 45). Bosses: Enhanced Harcon, Neglected Gadioton and Ultimate Berk. 5 other kinds of monster live inside. Rewards: 7 a week (refilled on Wednesday). Rewards come from the Odyle Energy Cube: 20–40 energy a cube, a guaranteed reward after 1–28 cubes.
Krao Cave is rich in a special mineral called Krao, known for its ability to repel external forces. Lepharists conducted various experiments with Krao here and, during the Last War, created the powerful Berk, which played a key role in the conflict. But when Berk went berserk and lost control, the Lepharists sealed the cave and withdrew.
Entry and limits
Party size and modes from the Dungeon table; entry levels from MapEntrance (and PartyDungeonLevel); weekly counts from ContentsTicket; reward cubes from RewardOdEnergyCube.
| Mode | Players | Level | Item level | Energy / cube | Guaranteed after | Rewards per week |
|---|---|---|---|---|---|---|
| Exploration | 1–5 | 20 | 200 | 20 | 1 cubes | 7 a weekrefilled on Wednesday |
| Conquest[Conquest/Transcendence] Remaining Unobtained Cube Count | 1–5 | 45 | 700 | 40 | 14 cubes | 14 a week2 a day, holds up to 14 |
| Conquest [Hard][Conquest/Transcendence] Remaining Unobtained Cube Count | 1–5 | 99above the cap | 2,400 | 40 | 28 cubes | 14 a week2 a day, holds up to 14 |
Level 99 is what the client's entrance table (MapEntrance) lists, above the current level cap of 45; the files don't say what opens these modes.
Bosses
Hero and Legend monsters of this dungeon: from their internal names in the game's NPC table and from the instance maps' spawn lists.
Guaranteed reward
The Odyle Energy Cube (RewardOdEnergyCube): each cube opened counts toward the game's guaranteed reward (“Guaranteed reward available after meeting condensed cube energy conditions”). Days are our calculation: cubes × energy per cube ÷ 120 energy a day (15 every 3 hours), less what a full bar of 560 already holds.
Odyle Energy: 120 a day, so 42 cubes a week at 20; it holds up to 560 (840 with the game's subscription).
Rewards per clear
Chance per clear = 1 − Π(1 − chance of each chest and boss table), every table opened once per clear; avg. clears = 1 ÷ chance; weeks use the mode's weekly reward count n: a week succeeds with q = 1 − (1 − chance)ⁿ, avg. weeks = 1 ÷ q, weeks for 90% = ln(0.1) ÷ ln(1 − q), rounded up.
Exploration54 items · Mid-boss 1, Mid-boss 2, Final boss, boss kills · 7 a week
Conquest76 items · Mid-boss 1, Mid-boss 2, Final boss, boss kills · 14 a week
Conquest [Hard]78 items · Mid-boss 1, Mid-boss 2, Final boss, boss kills · 14 a week
Monsters in Krao Cave
From the instance maps' spawn lists (MapData): 5 kinds and 66 spawn points besides the bosses; per mode Exploration 8 kinds / 36 points, Conquest 8 kinds / 68 points, Conquest [Hard] 8 kinds / 68 points. Levels are the variants placed here.
What the monsters inside drop
Per kill, from each monster's own reward table (RewardData; the shared level tables apart), for the variants placed in this dungeon: the best chance per item. Kills = 1 ÷ chance on average; for 90% = ln(0.1) ÷ ln(1 − chance), rounded up.
| Item | From | Chance / kill | Avg. kills | Kills for 90% |
|---|---|---|---|---|
| Soul: Harcon (Bound)Pet |  Enhanced Harcon | 100% | 1 | 1 |
Achievements
Journal achievements that ask for this dungeon (Achievement.ObjValues).
- ★Krao Cave Exploration Clear ICommon · Clear Krao Cave Exploration 1 time
- ★Krao Cave Conquest Clear ICommon · Clear Krao Cave Conquest on Normal 1 time
- ★Krao Cave Exploration Speedrun ICommon · Clear Krao Cave Exploration within 20 minutes
- ★Krao Cave Exploration Speedrun ICommon · Clear Krao Cave Exploration within 20 minutes
- ★Krao Cave Conquest Speedrun ICommon · Clear Krao Cave Conquest on Normal within 20 minutes
- ★Krao Cave Conquest Speedrun ICommon · Clear Krao Cave Conquest on Normal within 20 minutes
- ★Krao Cave Conquest Speedrun ICommon · Clear Krao Cave Conquest on Normal within 20 minutes
- ★Krao Cave Exploration Perfect ClearCommon · Clear Krao Cave Exploration without dying
- ★Krao Cave Conquest Perfect ClearCommon · Clear Krao Cave Conquest on Normal without dying
- ★Krao Cave Exploration Solo ClearCommon · Clear Krao Cave Exploration solo
- ★Krao Cave Conquest Solo ClearCommon · Clear Krao Cave Conquest on Normal solo
More Expedition dungeons
Urugugu CanyonExplorationConquestConquest [Hard]2–5 players · 7 a week · 3 bosses
Fire TempleExplorationConquestConquest [Hard]1–5 players · 7 a week · 4 bosses
DraupnirExplorationConquestConquest [Hard]1–5 players · 7 a week · 4 bosses
Dying Dramata's NestExplorationConquestConquest [Hard]2–5 players · 7 a week · 4 bosses
Vakron Sky IslandExplorationConquestConquest [Hard]2–5 players · 7 a week · 3 bosses
Ferocious Horn DenExplorationConquestConquest [Hard]1–5 players · 7 a week · 4 bossesKrao Cave FAQ
What level do you need for Krao Cave?
Item level 200–2,400 depending on the mode. Entry from character level 20–45 (the entrance table lists 99 for some modes, above the level cap of 45).
Who are the bosses of Krao Cave?
Enhanced Harcon (level 22–70), Neglected Gadioton (level 22–70) and Ultimate Berk (level 22–70).
What monsters are in Krao Cave?
5 kinds besides the bosses, 66 spawn points in the instance maps; the most common are Enhanced Krao Test Subject, Krao Magic Test Subject and Krao Mutant.
What does Krao Cave drop?
Per clear of Exploration, the likeliest are Enhance Stone (100%), Kina (Bound) (100%) and Silentium (Bound) (100%).
How many players can enter Krao Cave?
1–5 players in every mode.
How do Krao Cave rewards work?
Defeated bosses fill an Odyle Energy Cube; opening it costs 20–40 Odyle Energy, which refills 15 every 3 hours (120 a day). After 1–28 cubes the game gives a guaranteed reward.
Data: client 2.0.6.0 (Steam build 25767555, 2026-10-07). Reward chances are the game's table values (100% = 100,000,000); weeks assume every weekly reward claim is used. All dungeons