Hidden Cubes are small reward chests tucked into the open world of AION 2. They never appear on the map or minimap. Each one disappears as soon as a single player opens it. On the two maps live in the global version, every cube is locked until you spend a Key: Hidden Cube. That makes the key the real limit on how many cubes you can claim. The key is a Special-grade Misc item, and its one job is to open a cube. Using it boosts the cube’s energy, which moves your opening into a more valuable reward pool.
Quick answer: Earn keys from Duty quests, achievements, Monoliths, the Season Shop and attendance. Then follow the cube’s chime to cliffs and ledges, and open red cubes with one key each.
Key: Hidden Cube versions and how they differ
Every Hidden Cube accepts any version of the key. Each opening uses exactly one key, and every version stacks to 100. No version can be traded with other players, and all of them need only level 1 to use.
| Key | Binding | Expiry |
|---|---|---|
 Key: Hidden Cube | Not tradable, storable | None |
| Key: Hidden Cube (Bound) | Bound to character | None |
| Key: Hidden Cube (7 Days) (Bound) | Bound to character | 7 days |
| Key: Hidden Cube (10 Days) (Bound) | Bound to character | 10 days |
| Key: Hidden Cube (30 Days) (Bound) | Bound to character | 30 days |
The plain Key: Hidden Cube can go into storage and guild storage. The bound key stays in character storage only. It can’t be moved to server storage or sold through public or personal trade.
Spend the timed keys first. They vanish when the timer runs out, and the permanent keys will still be there later.
How to get Key: Hidden Cube
Keys come from many places, and none of them gives a large pile at once. One-time quest and achievement rewards fall well short of the 154 key-only cubes on the global maps. Recurring sources are what keep your stack topped up.
| Source | Keys | Limit or cost |
|---|---|---|
| Hero quests | 1 each | One time |
| Duty quests | Varies | Daily refresh |
| Achievements | 1 per tier | One time |
| Verteron and Altgard Monoliths | 12 total | Tiers 2 to 9 |
| Eltnen and Morheim Monoliths | 15 total | Tiers 2, 4, 6, 7, 8 |
| Season Shop | 1 | 3,000 Oath Coin |
| Shop | 1 | 50 Quna or 2,000 A2 Mileage |
| AION 2 Season 1 Starter | 10 | One box |
| Daeva Pass and Attendance | Varies | Reward tracks |
Several quests give one key each. Odyle Collection and Nine Wonders of Verteron: 2nd Leg are Elyos quests. Contaminated Area and Nine Wonders of Altgard: 2nd Leg are their Asmodian counterparts. Many Wanted and district quests in Verteron and Altgard also list the key, and so do quests in the Abyss.
Duty quests open at level 45 and refresh daily. Check the list after each refresh and pick the entries that show a key reward. The Verteron and Altgard Monoliths pay 1 key at reward tiers 2 to 5 and 2 keys at tiers 6 to 9. The Eltnen and Morheim Monoliths pay 3 keys at each of their listed tiers.
The Season Shop key is capped at 10 per account on each server. That listing runs from September 30 to December 16, 2026. The Quna shop sells up to 3 keys per day per character. Sealed dungeons and vendor shops round out the list.
Achievements that award keys
Several achievement chains pay one key per tier:
- Stories of the People I to VII
- Veteran Wing Collector I to V
- Shugo Collection II, IV and VI
- Essence Extraction Specialist I and II
- The Broken Seal of Verteron IV and VI, and The Broken Seal of Altgard IV and VI
Some achievement category milestones also pay 1 or 2 keys. The Who Brought the Chest? chain is the one that pays you back for opening cubes in the first place. Every tier returns a bound key along with Kina.
| Tier | Cubes opened | Rewards |
|---|---|---|
| Who Brought the Chest? I | 3 | 1 key, 4,000 Kina |
| Who Brought the Chest? II | 10 | 1 key, 6,000 Kina |
| Who Brought the Chest? III | 30 | 1 key, 8,000 Kina, title |
| Who Brought the Chest? IV | 50 | 1 key, 10,000 Kina |
| Who Brought the Chest? V | 100 | 1 key, 12,000 Kina, title |
| Who Brought the Chest? VI | 150 | 1 key, 13,000 Kina |
| Who Brought the Chest? VII | 200 | 1 key, 14,000 Kina |
Tier III grants the title BLEEP BLOOP BLEEP BLOOP, and tier V grants It’s Okay to Be Imperfect. All seven keys are Key: Hidden Cube (Bound).
Red vs gold Hidden Cubes: which need a key
Interact with a cube and its prompt tells you which kind you found. A red cube shows “Cannot open without a key.” and opens only if a key is in your bag. A gold, or yellow, cube shows “Use a key to get better rewards.” You can open a gold cube for free, or spend a key to roll the richer pool.
| Region | Faction | Hidden Cubes | Key needed? |
|---|---|---|---|
| Verteron | Elyos | 95 | Always |
| Altgard | Asmodian | 59 | Always |
| Eltnen | Elyos | 26 | Not on gold cubes |
| Morheim | Asmodian | 26 | Not on gold cubes |
That adds up to 154 cubes in Verteron and Altgard, and 206 with Eltnen and Morheim included. Eltnen and Morheim came with the Chapter 1 update for levels 45 to 50. That update is live in Korea and Taiwan but not in the global version as of October 2026. For global players, every cube is a red cube for now.
If you find a red cube without a key, drop a pin on it and come back later. The Map Pin tab on the world map holds up to 30 named pins.
Where Hidden Cubes spawn in AION 2
Cubes appear only in Verteron, Altgard, Eltnen and Morheim. Poeta, Ishalgen, the Abyss and dungeons have none. Each cube rotates among many possible spots rather than sitting at one fixed point. Two players can find the same cube in different places on different days.
Cubes avoid auto-path routes, monster packs and mid-air positions. Instead they settle on the edges of a zone:
- Cliff tops, rock faces, narrow ledges and high corners
- Small caves, hollows and gaps off the main path
- Floating rock platforms and the corners of hanging structures
- Rooftops, ruins and areas with little player traffic
- Riverbeds, lakeshores and shallow water
15 of the 206 spawn groups use a water cube. Verteron has 8, Altgard has 3, and Eltnen and Morheim have 2 each. Swim along the surface rather than diving deep, because the chime is easier to hear from there.
Verteron cube areas (Elyos)
Verteron has 1,440 possible cube spots spread over more than 50 areas. Ten areas hold the most:
| Area | Possible spots |
|---|---|
| Aullaeu Village | 115 |
| Verteron Fortress Ruins | 93 |
| Ellun River Midstream | 92 |
| Altamia Canyon | 81 |
| Kraka Footpath | 78 |
| Southern Altamia Highland | 76 |
| Western Cantas Valley | 64 |
| Forest of Exiles | 60 |
| Eternal Isle | 58 |
| Scarlet Forest | 58 |
Several Verteron spots are reliable to check. The cliffs below Dawn Legion Base are visible if you drop off the fortress edge. The four corners of the floating rock island north of Spirit’s Rest are another option. Pipe alcoves and upper gantries around Drana Processing Area also hide cubes. The river strip through Altamia Canyon is worth a pass both on the ledges and in the water.
Altgard cube areas (Asmodian)
Altgard has 1,371 possible cube spots across more than 60 areas.
| Area | Possible spots |
|---|---|
| Dredgion Crash Site | 122 |
| Purifying Forest | 112 |
| Basfelt Ruins | 85 |
| Battlescar Mound | 85 |
| Fafnite Deposit | 74 |
| Sanctum Outpost | 69 |
| Black Claw Village | 65 |
| Dranactus | 63 |
| Immortal Isle | 60 |
| Western Gribade Highland | 59 |
| Nameless Cemetery | 59 |
To reach Immortal Isle, teleport to Sanctum Outpost. Head to the warp point at the southern tip of the peninsula, then ride the wind stream across. The island gets busy whenever the field boss Immortal Gartua is due, so skip it around those spawns.
Eltnen and Morheim cube areas
Eltnen has 456 possible spots and Morheim has 455. In both regions, a handful of areas hold most of them.
| Eltnen area | Spots | Morheim area | Spots |
|---|---|---|---|
| Ruberein Highland | 113 | Iralcig Highland | 107 |
| Eiron Hill | 91 | Nephra Snowfield | 106 |
| Eltnen Barrier Tower Ruins | 62 | Muspel Volcano Zone | 97 |
| Mystic Spring of Anathe | 57 | Patamor Plains | 49 |
| Lankusis Highland | 40 | Halabana Canyon | 35 |
| Fractured Land | 24 | Patamor Plains Outskirts | 31 |
| Eastern Dartas Plains | 22 | Icecap Ridge | 11 |
| Western Dartas Plains | 20 | — | — |
How to hear a Hidden Cube before you see it
With no map marker to go on, you have to listen for cubes. Each one gives off a faint, shimmering chime that carries farther than you can see. It sounds much like an Empyrean Trace feather.
Some ambient objects jingle too. The angel statue near Spirit’s Rest in Verteron sounds close to a cube, so don’t trust a chime until you can actually see the cube.
Opening a Hidden Cube with a key
You can confirm a successful open in a few ways. The cast completes, the loot drops, and the cube disappears. Your Who Brought the Chest? count goes up by one. The Daeva Pass objective for opening a Hidden Cube also ticks forward, worth +50 points.
Each cube allows only one opening, and whoever starts the cast first gets the loot. In a crowded zone, open a cube the moment you find it. Late-night and early-morning hours bring less competition, and so do the high, awkward ledges most players fly past.
What a key changes in Hidden Cube rewards
Both reward pools always pay Silentium and can roll extra items. The key pool pays larger amounts, gives better odds on rare items, and includes some items that free openings never give.
| Reward | Free opening | Key opening |
|---|---|---|
| Soul Crystal | 100 | 1,000 |
| Soul Codex | 1 | Up to 5 |
| Silentium | Smaller amount | Larger amount |
| Power Shards | Smaller stack | Larger stack |
 Small Odyle Energy | Lower chance | Higher chance |
| Skins and wings | Base chance | Higher chance |
A typical keyed haul looks like 1,000 Soul Crystals, 180 Superior Power Shards and 5 Soul Codices, plus a few consumables. Soul Crystal feeds Genus Insight, and Soul Codex raises Soul Binding on your gear. The full item pool includes:
- Materials: Silentium, Soul Crystal, Soul Codex, Soul Codex: Reset, Power Shard, Superior Power Shard, Seed of Detection, manastones
- Consumables: Small Odyle Energy, Mana Potion, Life Crystal, Resurrection Spiritstone, Status Effect Resist Scroll
- Lucky Aura in Common, Rare, Epic and Unique versions, plus Shugo Transformation Candy
- Cosmetics: helm, earring and necklace skins, Emote: Kurukuru, pet souls
- Radiant Love Wings (Unique)
Radiant Love Wings drop at a rate in the low single digits. Equipped, they grant Defense Bonus 400, Evasion Bonus 35, Natural MP Regen 90 and a 5.5% increase to HP Potion Recovery.
Hidden Cube respawn rules
Hidden Cubes have no fixed respawn timer. Each map keeps a set number of cubes active, and opening one spawns a replacement somewhere else on that map. The new cube rarely appears in the spot you just cleared. Players on the longer-running Korean servers report gaps of anywhere from 30 minutes to three hours.
Camping a single spot wastes your time. Clear the cube, check the rest of that area’s ledges and water, then follow the next chime. Fold cube hunting into gathering runs, feather collection or Duty quest travel, and keep a spare key on hand for the cubes you stumble into along the way.
