Aion 2 cubes mean two different things, and players mix them up. The reward cube is where dungeon loot comes from. The Cube is also the name of your inventory window. NC publishes no cube rules, so the numbers below come from client data read by third-party sites, with NC notices where they exist. Sources disagree on some costs, and those are shown side by side.
What are cubes in Aion 2?
Reward cube (Odyle Energy Cube): a personal chest that appears after you clear eligible dungeon content. You spend Odyle Energy to open it and choose rewards. Client-data 2026-10-17 Source
The Cube (inventory): your main bag, opened from the Main Menu with ESC. Three community guides agree it is the inventory and that it expands as you play. Observed 2026-10-17 Source
If you searched for how to get more loot, read the reward cube sections. If you searched for more bag space, jump to the inventory Cube section.
How does the dungeon reward cube work?
Client-data 2026-10-17 Source
In Expeditions, Transcendence and Sanctuary the clear itself is not the reward. After the final boss you get a cube and spend Odyle Energy to open it. Opening costs energy and is not an entry ticket.
| Content | Energy per cube |
|---|---|
| Most cubes | 40 |
| Krao Cave and Urugugu Exploration | 20 |
| Fire Temple Exploration | 30 |
| Top modes | 60 |
Client-data 2026-10-17 Source Another guide quotes 80 for Sanctuary, but says that figure comes from Korea.
Odyle Energy refills 15 every 3 hours up to a cap of 560, or 840 with Special Quai Membership. Client-data 2026-10-17 Source
Special Quai Membership increases Odyle Energy cube selection in Expedition, Transcendence and Sanctuary and raises the energy cap. Membership also adds a second Odyle Energy injection into reward cubes. Official 2026-10-17 Source
Where to get more energy is covered in the dungeons guide and daily and weekly checklist.
How many cubes can I open per week?
Client-data 2026-10-17 Source
Cube counter: Remaining Unobtained Cube Count is 10 per week per server. At 0 you cannot enter Conquest or Transcendence until the weekly reset. Client-data 2026-10-17 Source
| Item | MetaBot dungeon guide says | Other community guides says |
|---|---|---|
| Conquest and Transcendence | 10 per week per server, shared | Reward pools of up to 21 for Conquest and 14 for Transcendence |
Client-data 2026-10-17 Source
The second figure matches the stored reward counts in the dungeons guide and is not the same counter, so both can be true. Check the in-game dungeon screen. Reset times are on the reset timer.
Is there a guaranteed cube reward?
Yes. Global tracks attempts until a guaranteed reward, and a server transfer keeps both your remaining Cube Reward claim counts and your attempts-until-guaranteed-reward. Official 2026-10-17 Source
What can a reward cube give?
Arcana cards come mainly from Transcendence dungeons. See the Arcana guide. Client-data 2026-10-17 Source
NC has not published loot tables, so exact drop chances are unknown. Do not trust sites that quote a percentage for Global.
How do I get more space in the Cube (inventory)?
Open the Cube from the Main Menu. Each expansion adds one row. Click the lock icon under your active slots to pay Kina, or use a Cube Expansion Voucher from quests, events or the Shop.
- Character Storage belongs to one character and moves with it on a server transfer.
- Server Storage is shared by all characters on a server and stays behind on a transfer.
- Both are expanded from a Storage Manager NPC in a settlement, with their own vouchers sold for Quna.
- Membership lets you open both storages remotely from the storage icon in the Cube window.
See the server transfer guide for what moves with you and the Kinah guide for what rows cost over time.
Not confirmed yet
These points have no reliable Global source yet. Do not plan around them.
- Cube loot tables and drop chances on Global. NC has published none.
- How many reward slots each Odyle Energy injection adds on Global. One secondhand summary says only the first two are guaranteed.
- Whether the 10 per week cube counter and the stored reward counts are separate counters.
- The Global guaranteed reward thresholds. Only Korean tables are public.
- The Cube's starting slot count and Kina cost per row. Two sites say 40 starting slots, which is fewer than the three sources we require.
- Slot counts for Character Storage and Server Storage.
Related guides and tools
Aion 2 cubes FAQ
What is the cube in Aion 2?
It means two things: the reward cube you open after a dungeon clear, and the Cube inventory window.
How much Odyle Energy does a cube cost?
Most cubes cost 40. Krao Cave and Urugugu Exploration cost 20, Fire Temple costs 30 and top modes cost 60.
Does leaving without opening the cube save my count?
No. The weekly cube counter still drops by one.
How fast does Odyle Energy refill?
15 every 3 hours, up to 560, or 840 with Special Quai Membership.
Is there a pity system for cubes?
Yes, NC confirms attempts until a guaranteed reward exist. The Global thresholds are not published.
How do I expand my Cube inventory?
Pay Kina at the lock icon under your active slots, or use a Cube Expansion Voucher. Each expansion adds one row.
Do cube and storage items move on a server transfer?
Kina in your Cube and Character Storage moves. Server Storage items stay behind.