Forgotten Repository Guide Ascension Trial
Forgotten Repository is an Ascension Trial in AION 2 where you face Karlix. Start with the quick guide below (requirements, boss order and mechanics), then the map, every difficulty, the clear rewards and the loot table.
An underground repository that was been buried underneath the earth for many years, forgotten, until marauders turned it into a hideout and slaughterhouse. Defeat the band of ruthless, headhunting ruffians and their leader.
- Type
- Ascension Trial
- Min. item level
- 1,000
- Weekly counter
- 3 per week
- Difficulties
- 6
- Bosses
- 1
Forgotten Repository quick guide
The short version: what you need to enter, the bosses with their enrage timers and named skills, and the drops worth the run, all read from the game client. Boss levels are for Conquest.
Before you go
- Item level Exploration 1,000 · Conquest 1,500 · Transcendence 2,000 · Challenge 2,500 · Insane 3,000 · Hell 3,500
- Reward limit 3 per week, refills on Wednesday
- Difficulties Exploration, Conquest, Transcendence, Challenge, Insane, and Hell
Forgotten Repository boss guide: mechanics
- Route to this boss ↓
Karlix
Lv. 50 · Hero
Run Forgotten Repository 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
Forgotten Repository Map: Bosses, Rooms & Route
Interactive Forgotten Repository map for AION 2 showing 1 boss and named-monster locations, 18 monster packs, portals, doors and the reward cube on the in-game dungeon map. Switch between all 6 difficulties – the spawns change with each one.
Forgotten Repository map (Conquest) with every boss, monster pack and object placed from the game client's spawn data.
What changes by difficulty
| Difficulty | Bosses | Monster packs | Monsters | Objects |
|---|---|---|---|---|
| Exploration | 1 | 18 | 99 | 14 |
| Conquest | 1 | 18 | 99 | 14 |
| Transcendence | 1 | 18 | 99 | 14 |
| Challenge | 1 | 18 | 99 | 14 |
| Insane | 1 | 18 | 99 | 14 |
| Hell | 1 | 18 | 99 | 14 |
Forgotten Repository Walkthrough: Bosses, Monster Packs & Route
Step-by-step Forgotten Repository walkthrough on Conquest: the route to the boss, 18 monster packs (99 monsters) and every chest, shrine, door and portal along the way. The boss marker matches the map above. Other difficulties change the spawns – switch the difficulty on the map above to compare.
Entrance
Start at the dungeon entrance.
Stage 1: KarlixFinal boss
Fight through 9 monster packs – 32 monsters in total – on the way to Karlix. Monsters here are Lv. 50. Expect mostly Void Helicoid, Ascended Repository Warrior, and Ascended Repository Mage. Watch for the stronger foes mixed in: Ascended Repository Ancient Totem (Elite). Along the way: Door, Veil, and Attack increase. Teleport portals here: Teleportation Portal and Ascension Room Entrance.
Monsters on the way- Door
- Veil
Attack increase (Rolls one of: Attack Speed increase, Max HP increase, Critical Hit increase, Reduces Skill cooldown, and Defense increase)
Teleportation Portal ×2- Ascension Room Entrance
Karlix is the final boss of Forgotten Repository; defeat it to complete the run.
Optional areas off the route
9 more monster packs (67 monsters) sit off the main route. Monsters here are Lv. 50. Expect mostly Void Helicoid, Ascended Repository Defense Cannon, and Ascended Repository Supporter. Along the way: Attack increase ×4 and Door ×4.
- Attack increase ×4 (Rolls one of: Attack Speed increase, Max HP increase, Critical Hit increase, Reduces Skill cooldown, and Defense increase)
- Door ×4
Forgotten Repository entry requirements & limits
Forgotten Repository needs item level 1,000 or higher to enter. The table lists level, party size and run limits for each mode.
| Mode | Level | Min. item level | Party size | Limit | Resets |
|---|---|---|---|---|---|
| Exploration | 45+ | 1,000 | Solo | 3 per week | Wednesday |
| Conquest | 45+ | 1,500 | Solo | 3 per week | Wednesday |
| Transcendence | 45+ | 2,000 | Solo | 3 per week | Wednesday |
| Challenge | 45+ | 2,500 | Solo | 3 per week | Wednesday |
| Insane | — | 3,000 | Solo | 3 per week | Wednesday |
| Hell | — | 3,500 | Solo | 3 per week | Wednesday |
Counters used: Ascension Trial Entry Count (3 per week)
Reset days follow the server's weekly schedule; the client does not state the time of day in a way we can verify, so only the weekday is shown.
Item level by mode
Difficulties
Each difficulty of Forgotten Repository with its recommended level, party size, death limit and boss count.
| Difficulty | Death limit | Bosses |
|---|---|---|
| Exploration | 5 | 1 |
| Conquest | 3 | 1 |
| Transcendence | 2 | 1 |
| Challenge | 2 | 1 |
| Insane | 2 | 1 |
| Hell | 2 | 1 |
Bosses and monsters
Bosses: 1. Other monster types inside: 61. Open any of them for its level and drops.
| Name | Level |
|---|---|
 Karlix | 70 |
Monsters:
Repository Ancient Totem
Repository WarriorRepository Mage
Repository Assault Captain
Repository Bomber
Repository Defense Cannon
Void Helicoid
Repository Supporter
Repository ReaperRepository GuardRepository WarmageAscended Repository Ancient TotemAscended Repository WarriorAscended Repository MageAscended Repository Assault CaptainAscended Repository BomberAscended Repository Defense CannonAscended Repository SupporterAscended Repository ReaperAscended Repository GuardAscended Repository WarmageForgotten Repository Ancient TotemForgotten Repository WarriorForgotten Repository MageClear rewards
What the game hands out for clearing Forgotten Repository, per difficulty.
What Forgotten Repository rewards turn into
Substance Morph recipes that spend items Forgotten Repository gives out (1). Counts and Kinah costs are read from the game client.
| Result | Materials | Success |
|---|---|---|
 Amplify Stone (Unique) | 100% |
Every recipe, with its limits and requirements, is on our conversion page: all Substance Morph recipes
Score rewards
Forgotten Repository pays out by score: reach a threshold to earn that tier's rewards. The highest tier is listed first.
Loot table
The 4 items the game lists as loot for Forgotten Repository, strongest grade first. Each item page shows its full stats and other sources.
 Amplify Stone Fragment (Unique) (Bound) | Unique | Game loot list |
|---|---|---|
 Enhance Stone | Common | Game loot list |
 Growth Pet Chest (Bound) | Common | Game loot list |
 Ascension Binding Chest (Bound) | Common | Game loot list |
More Ascension Trial
| Name |
|---|
| Chamber of the Dead |
| Chamber of the Dead (Doom) |
| Depository of Fates |
| Forgotten Repository (Doom) |
| Nightmare Altar |
| Sanctum of Loathing |
| Tyrant's Hideout |
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
Forgotten Repository is an Ascension Trial in AION 2 with 6 difficulty settings. The story text above is the game's own. The bosses, the 61 monster types inside and the 4 items on its loot table all come from the global client, so names and numbers match what North American and European players see. Entry needs item level 1,000. Its weekly counter allows 3 per week.
Help us maintain accuracy! If you notice incorrect stats, missing data, or any issues, your feedback directly improves the quality of our data for the entire community.
Forgotten Repository FAQ
What do Forgotten Repository 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.
Who is the boss of Forgotten Repository?
The bosses of Forgotten Repository are Karlix. Each boss page shows its level and any boss challenge tiers.
What does Forgotten Repository drop?
The game lists 4 loot items for Forgotten Repository, including Amplify Stone Fragment (Unique) (Bound), Enhance Stone, Growth Pet Chest (Bound), and Ascension Binding Chest (Bound). The loot table on this page links every item.
What difficulties does Forgotten Repository have?
Forgotten Repository has 6 difficulties: Exploration, Conquest, Transcendence, Challenge, Insane, and Hell.
Where is the final boss in Forgotten Repository?
Karlix is the final boss of Forgotten Repository; the interactive map above marks its exact spot.
What monsters are in Forgotten Repository?
Forgotten Repository has 18 monster packs with 99 monsters on Conquest. The most common are Void Helicoid, Ascended Repository Defense Cannon, Ascended Repository Assault Captain, and Ascended Repository Bomber; the walkthrough above lists them stage by stage.
Are there portals or shortcuts in Forgotten Repository?
Yes. Forgotten Repository has teleport portals that move the party ahead: Teleportation Portal and Ascension Room Entrance. Each one is marked on the map.
What item level do you need for Forgotten Repository?
The minimum item level for Forgotten Repository depends on the mode: Exploration 1,000, Conquest 1,500, Transcendence 2,000, Challenge 2,500, Insane 3,000, and Hell 3,500.
What weekly limits apply to Forgotten Repository?
Forgotten Repository uses the "Ascension Trial Entry Count" counter: 3 per week. The counter refills every Wednesday.