Boss Battles: Solo and Party
Choose Normal or Solo, then a difficulty you have unlocked for that mode. Each mode has 10 difficulties and independent progression. Winning Solo does not replace your Normal unlock progress.
Entering
- Leave your party before starting a Solo run.
- Normal party capacity and entry requirements depend on the selected boss. There is no universal 5-player cap for this system.
- Check the boss window for its current access rules, cooldown and reward preview before entering.
Difficulty scaling
| Rule | Normal | Solo |
|---|---|---|
| Boss HP and scaled direct damage | 1 + 0.5 × (difficulty − 1) | Normal value × 0.65 |
| Difficulty loot multiplier | 1 + 0.2 × (difficulty − 1) | Same difficulty multiplier, then final chance × 0.65 |
| Victory EXP multiplier | 1 + 0.25 × (difficulty − 1) | Same difficulty multiplier |
At difficulty 10, the difficulty loot bonus is +180%, and configured victory EXP is multiplied by 3.25. Solo has 35% less boss HP, scaled direct damage and final loot chance than the corresponding Normal fight. Damage-over-time, native fields and special percentage mechanics can retain their own rules.
Solo mechanic changes
- Timira starts in the vulnerable version.
- Timira, Drume, Grand Master Oberon, Keeper of Secrets and Abyssal King disable their Solo room mechanics.
- Urbatulhu uses a special Solo vortex encounter.
- Other bosses keep their configured mechanics; Solo does not mean every room puzzle is disabled.
Victory experience in Classic
Some configured bosses grant extra victory EXP to eligible living participants inside the room. It uses the current level’s EXP cost, the boss/level reward bracket and the difficulty multiplier. It is not a guaranteed number of real levels after crossing a curve boundary, and normal hunting EXP boosts do not multiply it.
| Boss group | 200–299 | 300–399 | 400–499 | 500–599 | 600–699 |
|---|---|---|---|---|---|
| Jotunn | 50% | 25% | 10% | 5% | 2.5% |
| Drume / Obliterator | 150% | 100% | 50% | 25% | 15% |
| Timira / Dracola / Oberon | 200% | 125% | 65% | 32% | 16% |
| Minion of Devovorga / Mujina King / Urbatulhu | 300% | 200% | 100% | 50% | 25% |
| Scarlett / Morgaroth | 300% | 250% | 150% | 75% | 35% |
These percentages are difficulty-1 victory rewards. Multiply by 1 + 0.25 × (difficulty − 1). No extra victory EXP is configured for these groups at level 700+. This table does not describe normal creature kill EXP.
Current Classic rules in this article were reviewed against the deployed gameplay definitions on 4 October 2026. This does not certify all linked historical guides or every encounter in play.
Classic reference: Classic gameplay review — Boss Battles: Solo and Party
Verification evidence
- Classic boss difficulty and victory rewards
- Classic boss difficulty and victory rewards
- Classic boss difficulty and victory rewards
- Classic boss difficulty and victory rewards