Dungeons and boss challenges
Where you fight Deep Underground Cave Mass, and what each boss challenge tier asks for and pays out.
Appears in:
Deep Underground Cave Mass Lv. 15 · Normal · Varian
Deep Underground Cave Mass is a level 15 Normal monster in AION 2. This page shows where it spawns and how it behaves, read straight from the global client. Deep Underground Cave Mass is aggressive: it attacks players who come near, and it fights on the ground.
- Level
- 15
- Rank
- Normal
- Type
- Varian
- Behavior
- Aggressive
Deep Underground Cave Mass drops
The game client has no drop table for this monster. Instanced monsters and bosses have their loot rolled by the game server, so there are no items or chances to list.
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Deep Underground Cave Mass profile
Deep Underground Cave Mass is a level 15 Normal monster of the Varian type. The client gives it a movement speed of 400.
| Detail | Value |
|---|---|
| Level | 15 |
| Rank | Normal |
| Type | Varian |
| Behavior | Aggressive |
| Habitat | Ground |
| Movement speed | 400 |
Monsters to farm near level 15
Deep Underground Cave Mass has no open-world spawn or drop table in the game client. These monsters near level 15 have both: Marsh Targon, Marsh Slime, and Foul Slime.
Field zones that cover level 15: Contaminated Marsh (14–15)Sanctum Outskirts Watch (1–18)Silent Hill (1–18)Munin's Bridge (1–20)Tranein Highland (1–20)Tranein Pond (1–20)
Versions of Deep Underground Cave Mass
The game has 2 versions of Deep Underground Cave Mass with different levels or ranks; this page combines their spawns and drops.
| Name | Level | Rank |
|---|---|---|
 Deep Underground Cave Mass | 15 | Normal |
| Deep Underground Cave Mass | 15 | Normal |
Similar monsters
| Name | Level | Rank |
|---|---|---|
 Contaminated Zelophi | 15 | Normal |
 Deep Underground Cave Mutant | 15 | Normal |
 Deep Underground Cave Drana Mutant | 15 | Normal |
 Fafnium Protector | 15 | Normal |
 Tainted Wraith | 15 | Normal |
 Storage Room Fafnium | 15 | Normal |
 Tome Grave Gnat | 15 | Normal |
 Marsh Targon | 14 | Normal |
Data read from the AION 2 global client (build 0.0.4387.0). Updated for the Nov 4, 2026 patch. How we read the game files
Deep Underground Cave Mass is a level 15 Normal enemy in AION 2 with no open-world spawn in the global client, so it is met in instanced content such as dungeons or events. Drop chances and challenge rewards come straight from the game's reward tables. Monster HP and combat stats are kept on the game server and are not in the client files, so they are not listed here.
See Also
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Deep Underground Cave Mass FAQ
Which dungeon is Deep Underground Cave Mass in?
Deep Underground Cave Mass appears in Deep Underground Cave.
Where can I farm monsters like Deep Underground Cave Mass?
Deep Underground Cave Mass has no drop table in the game client. Monsters near level 15 that spawn in the open world and do drop items include Marsh Targon, Marsh Slime, and Foul Slime.
What level is Deep Underground Cave Mass?
Deep Underground Cave Mass is level 15 (Normal).
How much HP does Deep Underground Cave Mass have?
The AION 2 client does not contain monster HP or combat stats – they live on the game server – so no database built from game files can show real values. Level, rank, spawns and drops on this page come from the client.