Obsidian Fortress
The Obsidian Fortress is an endgame dungeon featuring the fearsome Dragon of Darkness, Abyssus. Located in the Crypt, this dungeon drops the powerful Obsidian Dragon armor sets.
Overview
Face Abyssus, the Dragon of Darkness, in his dark fortress. This dungeon requires Dragon Rank 150+ and offers class-specific Obsidian Dragon armor sets.
Requirements
| Requirement | Value |
|---|---|
| Level | 150+ |
| Dragon Rank | 150-200 |
| Gear Score | 11,500 |
| HP Requirement | 1M |
| Party Size | Recommended 4-8 |
| Daily Entries | 2 |
| Minimum Kills | 20 |
| Difficulty | Ultimate |
Monsters
All monsters in this dungeon are Dragon Rank 150.
Mini-Bosses
| Monster | Dragon Rank | HP | Attack | Rank |
|---|---|---|---|---|
| Shadow Claw Gargoyle | 150 | 500,000,000 | High | SUPER |
| Headless Horseman | 150 | 500,000,000 | High | SUPER |
| Cursed Guardian | 150 | 500,000,000 | High | SUPER |
| Dark Sentinel | 150 | 500,000,000 | High | SUPER |
[Dragon of Darkness] Abyssus (Final Boss)
| Stat | Value |
|---|---|
| Title | [Dragon of Darkness] Abyssus |
| Level | 155 |
| Dragon Rank | 150 |
| HP | 1,000,000,000 |
| Attack | 431,334 - 452,901 |
| STR | 140 |
| STA | 580 |
| DEX | 140 |
| INT | 140 |
| Rank | SUPER |
Drops
Abyssus can drop up to 2 items per kill.
Gold Drop: 800,000 - 1,000,000 Penya
Dark Dragon Hearts
| Item | Drop Chance |
|---|---|
| Dark Dragon Heart | ~40% |
| Dark Dragon Heart | ~10% |
| Dark Dragon Heart | ~15% |
Multiple rolls for Dark Dragon Hearts per kill.
Obsidian Dragon Sets (AOE)
All classes have male and female versions available. Each set piece has approximately 0.003% drop chance (Ultra Rare).
| Class | Male Set | Female Set |
|---|---|---|
| Crackshooter | Obsidian Dragon Crackshooter Set (M) | Obsidian Dragon Crackshooter Set (F) |
| Harlequin | Obsidian Dragon Harlequin Set (M) | Obsidian Dragon Harlequin Set (F) |
| Slayer | Obsidian Dragon Slayer Set (M) | Obsidian Dragon Slayer Set (F) |
| Templar | Obsidian Dragon Templar Set (M) | Obsidian Dragon Templar Set (F) |
| Mentalist | Obsidian Dragon Mentalist Set (M) | Obsidian Dragon Mentalist Set (F) |
| Seraph | Obsidian Dragon Seraph Set (M) | Obsidian Dragon Seraph Set (F) |
| Force Master | Obsidian Dragon Forcemaster Set (M) | Obsidian Dragon Forcemaster Set (F) |
| Arcanist | Obsidian Dragon Arcanist Set (M) | Obsidian Dragon Arcanist Set (F) |
Obsidian Dragon Sets (1on1)
Same class sets available for 1on1 builds with identical drop rates.
Set Pieces
Each set includes:
- Helmet
- Suit
- Gauntlets
- Boots
Upgrade Materials
- Obsidian Dragon Sapphire - Required to upgrade Obsidian Dragon Sets
- Obsidian Dragon Sap (Fragments) - Crafting material from set exchanger
Upgrade System
"Use Obsidian Dragon Sapphire for Obsidian Dragon Sets."
To upgrade Obsidian Dragon Sets:
- Obtain Obsidian Dragon Sapphire
- Visit the Obsidian Set Exchanger (Hiroshi)
- Exchange fragments and sapphires for upgrades
Set Exchanger
The [Obsidian Set Exchanger] Hiroshi NPC offers:
- AOE set exchanges (100 Obsidian Dragon Sap each)
- 1on1 set exchanges (100 Obsidian Dragon Sap each)
Strategy
Preparation
- Reach Dragon Rank 150+
- Obtain Black Dragon/Dragon gear
- Prepare for darkness-based attacks
- Coordinate party roles
During Combat
- Clear Shadow Claw Gargoyle first
- Watch for Abyssus's darkness attacks
- Coordinate heals during high damage phases
- Focus fire when possible
Tips
- Abyssus has powerful darkness-based AoE attacks
- Mini-bosses are challenging - don't underestimate them
- Bring plenty of consumables
- Coordinate with party for efficient clears
Related Content
- Shadow Citadel - DR 180 dungeon
- Depths of Desolation - DR 200 dungeon
- Obsidian Dragon Sets - Armor guide
- Dragon Rank - Progression guide
Sources
- Dragon Crusade Features
- Game files: propMover.txt, PartyDungeon.lua, Exchange_Script.txt