Den Loot
| Destruction Artifact Chance | A guaranteed artifact counter takes priority. Otherwise, the den rolls its base artifact chance plus prestige and spelunker bonuses, with den luck adding up to 30 percentage points. |
|---|---|
| Den Loot Formula | Den loot starts from each item weight and applies den-specific loot multipliers. Gem luck boosts gems, den luck boosts valuable items, and mithril respects extra-mithril caps plus mithril-weight artifacts. |
| Artifact Selection | Destroyed dens roll from artifacts you have not obtained or collected, excluding boss-only artifacts. Artifacts above the den's max tier can still appear, but their weight is halved. |
| Artifact Choice | Artifact-choice screens exclude owned, collected, and boss-only artifacts. Higher mountain level adds more weight to higher-tier artifacts, and the offered choices are unique. |
| Den | Health | Scaling Details | Artifact | Mithril | Loot | Hazards |
|---|---|---|---|---|---|---|
| Ancient Vault | Den HP rolls between 14% and 19% of mountain max HP. After mountain level 100, both ends are reduced by late-game scaling but floor at 1%. | After mountain level 100, den HP is reduced toward the 1% floor. Prestige scaling can create tougher den variants (50% chance). | 16%, max tier 3 | 1 guaranteed, 2 extra max | 5-8 | Interval 12-21 Uses energy hazards for contact and attacks. |
| Dark Castle | Den HP rolls between 11% and 16% of mountain max HP. After mountain level 100, both ends are reduced by late-game scaling but floor at 1%. | Early mountains use 0.7x den health. After mountain level 100, den HP is reduced toward the 1% floor. Prestige scaling can create tougher den variants (50% chance). | 9%, max tier 1 | 0 guaranteed, 1 extra max | 4-6 | Interval 10-21 Uses bone hazards for contact and attacks. |
| Goblin Den | Den HP rolls between 9% and 14% of mountain max HP. After mountain level 100, both ends are reduced by late-game scaling but floor at 1%. | Early mountains use 0.7x den health. After mountain level 100, den HP is reduced toward the 1% floor. Prestige scaling can create tougher den variants (50% chance). | 8%, max tier 1 | 0 guaranteed, 1 extra max | 4-6 | Interval 14-26 Contact hazard: Goblin; attack hazard: Goblin Paraglider. |
| Mithril Vein | Den HP rolls between 11% and 15% of mountain max HP. After mountain level 100, both ends are reduced by late-game scaling but floor at 1%. | After mountain level 100, den HP is reduced toward the 1% floor. Prestige scaling can create tougher den variants (50% chance). | 1%, max tier 2 | 1 guaranteed, 2 extra max | 1-4 | Interval 22-33 Uses boulder hazards for contact and attacks. |
| Troll Cave | Den HP rolls between 12% and 17% of mountain max HP. After mountain level 100, both ends are reduced by late-game scaling but floor at 1%. | After mountain level 100, den HP is reduced toward the 1% floor. Prestige scaling can create tougher den variants (50% chance). | 11%, max tier 2 | 0 guaranteed, 2 extra max | 4-7 | Interval 11-19 Contact hazard: Meat; attack hazard: Boulder. |