Hidden Vein Cave Sealed Dungeon · Lv. 10 · Altgard

Sealed Dungeon

Hidden Vein Cave is a Sealed Dungeon in AION 2. This page lists what the global client knows about it: level, party size, difficulties, rewards and where its entrance is.

A hidden cave rich in rare minerals. Crystalline monsters are swarming within.

Type
Sealed Dungeon
Rec. level
10
Region
Altgard

Hidden Vein Cave quick guide

The short version: what you need to enter Hidden Vein Cave and the drops worth the run, read from the game client.

Before you go

  • Level 10+
  • Entrance Nameless Cemetery, Altgard
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Run Hidden Vein Cave with the map open beside you

Party dungeons, raids and instances with entry rules, bosses, rewards and an interactive dungeon map.

  • Interactive dungeon maps with boss pins
  • Bosses, difficulties and weekly reset day
  • Rewards and loot for every mode
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Hidden Vein Cave Map: Bosses, Rooms & Route

Interactive Hidden Vein Cave map for AION 2 showing 6 monster packs, portals, doors and interactive objects on the in-game dungeon map.

Hidden Vein Cave map – AION 2 dungeon layout with boss locations
Scroll to zoom · drag to pan · click a marker

Hidden Vein Cave map (Standard) with every boss, monster pack and object placed from the game client's spawn data.

Hidden Vein Cave Walkthrough: Monsters & Route

Every monster you meet in Hidden Vein Cave on Standard: 6 monster packs with 18 monsters in total, plus the chests, shrines and other interactions on the map.

  1. Entrance

    Start at the dungeon entrance.

  2. Monsters in Hidden Vein Cave

    Hidden Vein Cave has 6 monster packs with 18 monsters in total. Monsters here are Lv. 10. Expect mostly Ore Vein Kalgolem, Ore Vein Odyle Spirit, and Ore Vein Odyle Sparkie. Teleport portals here: Exit.

    • Exit

Monster roster

MonsterCountMonster packs
Ore Vein Kalgolem – AION 2 portraitOre Vein Kalgolem106
Ore Vein Odyle Spirit – AION 2 portraitOre Vein Odyle Spirit43
Ore Vein Odyle Sparkie – AION 2 portraitOre Vein Odyle Sparkie33
Ore Vein Giant Sparkie – AION 2 portraitOre Vein Giant Sparkie32

Hidden Vein Cave entry requirements & limits

Entry level, party size and run limits for each mode of Hidden Vein Cave, read from the game client.

ModeParty size
StandardSolo

Bosses and monsters

Bosses: 0. Other monster types inside: 4. Open any of them for its level and drops.

Monsters:

Ore Vein Kalgolem – AION 2 portraitOre Vein KalgolemOre Vein Odyle Spirit – AION 2 portraitOre Vein Odyle SpiritOre Vein Giant Sparkie – AION 2 portraitOre Vein Giant SparkieOre Vein Odyle Sparkie – AION 2 portraitOre Vein Odyle Sparkie

Clear rewards

What the game hands out for clearing Hidden Vein Cave, per difficulty. Elyos and Asmodians get different rewards here.

DifficultyElyosAsmodian
Standard15,000×Kina (Bound) – AION 2 item iconKina (Bound)1,000×Abyss Points – AION 2 item iconAbyss Points2,500×Enhance Stone – AION 2 item iconEnhance Stone15,000×Kina (Bound) – AION 2 item iconKina (Bound)2×Sealed Wing Featherdown (Bound) – AION 2 item iconSealed Wing Featherdown (Bound)2×Statue Scrap: Night Illusion Wings (Bound) – AION 2 item iconStatue Scrap: Night Illusion Wings (Bound)Title: Sharing is Caring – AION 2 item iconTitle: Sharing is Caring2×Daevanion Crystal (Bound) – AION 2 item iconDaevanion Crystal (Bound)2×Wisdom Stone (Bound) – AION 2 item iconWisdom Stone (Bound)1,250×Enhance Stone – AION 2 item iconEnhance Stone

What Hidden Vein Cave rewards turn into

Substance Morph recipes that spend items Hidden Vein Cave gives out (1). Counts and Kinah costs are read from the game client.

ResultMaterialsSuccess
Amplify Stone (Unique) – AION 2 item iconAmplify Stone (Unique)100%

Every recipe, with its limits and requirements, is on our conversion page: all Substance Morph recipes

Loot table

The global client has no loot table for Hidden Vein Cave. Loot from instanced bosses and monsters is rolled by the game server, so there are no items or drop chances to list.

Entrance location

Where to enter Hidden Vein Cave: Nameless Cemetery on the Altgard map.

Entrance of Hidden Vein Cave on the map

Nameless Cemetery · Altgard

Show on the interactive map

Quests tied to Hidden Vein Cave

The quest Hidden Vein Cave is tied to Hidden Vein Cave.

NameType
Hidden Vein CaveExploration

More Sealed Dungeon

NameRec. level
Abandoned One's Grave10
Cave of the Desperate10
Chilly Hideout10
Dratona Cave10
Dusk Pit10
Lost Ruins10
Lupyllini Habitat10
Mysterious Mushroom Cave10

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

Hidden Vein Cave is a Sealed Dungeon in AION 2 around level 10. The global client lists its bosses, the monsters inside and any clear rewards, all shown on this page. Numbers come straight from the game files and match the North American and European servers.

See Also

DungeonsAltgardAbandoned One's GraveCave of the DesperateChilly Hideout
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Hidden Vein Cave FAQ

What do Hidden Vein Cave rewards turn into with Substance Morph?

Substance Morph turns them into: Amplify Stone (Unique) for 4× Amplify Stone Fragment (Unique) (Bound) and 2,500× Enhance Stone.

Where is the entrance to Hidden Vein Cave?

The entrance to Hidden Vein Cave is in Nameless Cemetery on the Altgard map; the map on this page marks the exact spot.

What level do you need for Hidden Vein Cave?

The game recommends level 10 for Hidden Vein Cave.

What monsters are in Hidden Vein Cave?

Hidden Vein Cave has 6 monster packs with 18 monsters on Standard. The most common are Ore Vein Kalgolem, Ore Vein Odyle Spirit, Ore Vein Odyle Sparkie, and Ore Vein Giant Sparkie; the walkthrough above lists them stage by stage.