AION 2 Trick or Treat Event 2026 — Dates, Rewards & Shop

AION 2’s Trick or Treat event runs from the October 13, 2026 maintenance to the November 3 maintenance. Log in daily and clear weekly missions for Halloween Pumpkin Coins, then buy a skeleton skin, Odyle Energy and consumables at the Coin Merchant.

That is the whole loop, and it takes about ten minutes a day plus whatever dungeons you were already running. The rest of this page is the official notice unpacked: the real schedule (which is not the October 16 date some event calendars show), the full coin math, every merchant price, and the two different deletion dates that decide what you should buy first.

When does the Trick or Treat event run?

After the scheduled maintenance on October 13, 2026 (Tuesday) PDT, until before the scheduled maintenance on November 3, 2026 (Tuesday) PST. The notice prints the European equivalent on the same line: after the October 14 (CEST) maintenance until before the November 4 (CET) maintenance. Those are the same two maintenance boundaries, not a longer European event.

Date check: the official Event Schedule says October 13, not October 16. Some event listings use October 16, probably because that is the first Friday of the window or because a regional maintenance landed later, but the notice itself is unambiguous. Use October 13 and treat the first day as a partial day: the event cannot start before maintenance ends.

The end is also a maintenance boundary, not a clock time. If your server’s November 3 maintenance runs long, the event does not extend to compensate — spend coins before the maintenance window rather than during it.

How do you earn Halloween Pumpkin Coins?

There are two faucets, and they reset on different clocks.

Attendance is a 14-day board inside the in-game menu: open Menu → Attendance, find the Trick or Treat track, and claim the day’s coins. The notice says the board resets daily at 12:00 AM (PDT), which it also gives as 9:00 AM (CEST). One detail worth flagging: the reset line only names PDT and CEST, while the schedule line switches to PST and CET after daylight time ends. November 1, 2026 is the US changeover, so if the board keeps resetting at midnight Pacific it moves to 08:00 UTC for the last two days. The notice does not restate the reset in PST, so plan to claim before midnight Pacific rather than after.

Weekly missions live under [Season Mission] → [Event]. Each one pays coins once per week per server, and the reset is weekly rather than daily. Ten missions are listed:

That is 235 coins per weekly reset if you clear the board. The event window spans three weekly resets (October 13, 20 and 27), which would put the mission ceiling near 705 coins — that total is our arithmetic on the published per-week values, not a number NCSOFT prints. The attendance ceiling is easier: 620 coins, because the 14-day table is fixed.

What does the attendance track pay each day?

The board is front-loaded around two milestone days:

Everything is the same currency, so there is no wrong day to claim — the only way to lose value is to miss a day entirely. The board is 14 days long inside a 21-day window, which leaves a week of slack, but the notice describes no catch-up purchase. Treat a missed day as lost coins.

Because the board is once per server, an alt on the same world cannot run a second copy. An alt on a different server can, and the merchant limits are also per server — so if you play two worlds, the coin economy doubles.

Where is the Coin Merchant, and what does it sell?

The notice adds a Coin Merchant NPC to each town and names the faction locations:

The stock is identical for both factions. Prices and limits, exactly as published:

Two level gates matter. The Odyle Energy and Lower Abyss Rift Stone rows require level 45, so a fresh character cannot convert coins into dungeon energy yet. Everything else opens at level 10, including the chest.

Is the Special Halloween Chest worth 250 coins?

Yes, if you care about cosmetics at all. It is the only item on the list you cannot get another way, it is limited to one per server, and it contains two things:

The skin is a breastplate slot transmog, not a stat item, and it is bound. The 10,000 Pet Soul Crystals are the practical half of the bundle — the pets guide covers what that currency buys, and 10,000 is a meaningful head start on pet growth.

At 250 coins the chest costs 40% of the 620 attendance coins, so a player who only logs in can still afford it with 370 coins left over. Add the weekly missions and the chest stops competing with anything else: two weekly resets pay for it outright.

The buff food is the other novelty. Halloween Candy gives Attack 25, Defense 250, Max Stamina 300 and 40% natural stamina regeneration for 5 minutes; Halloween Cookie gives Max HP 500, Max MP 250, Max Stamina 300 and the same 40% regeneration. Both cost 2 coins, are limited to 10 per character, and are deleted on November 3 — buy them to use, not to bank.

What are Candy Keys and Candy?

Candy Keys are a second, dungeon-fed layer of the event. Candy Key Fragments drop from Expedition and Transcendence dungeons, and the Event Substance Morph converts them:

The keys open event candies placed around town. Each candy pays all of its contents at once:

Blue is the progression pick (Odyle Energy is the dungeon-entry currency explained in the dungeon entry guide), Yellow is the PvP pick if you are pushing Abyss Points, and Red is the pet and enhancement pick. You can morph one of each per week, so the choice is really about which dungeons you run, not about scarcity.

Fragments that do not become keys can always become Superior Power Shards at 1 fragment per 10 shards, with no morphing limit. That is the correct sink for leftovers in the final week, because fragments are deleted on November 3.

What expires, and when?

Two deletion dates, and they are three weeks apart:

Note that the Special Halloween Chest itself expires on the December date — if you buy it and never open it, the unopened chest is removed. Open it on the day you buy it. The skin and Pet Soul Crystals inside are not on the removal list, so the contents survive.

The December date is shared with the Atreia’s Call attendance event, which also deletes Odyle Energy on December 16. If you are stacking energy from both events, the two stocks expire together.

What the notice does not state

A few questions the announcement leaves open, marked as unknown rather than guessed:

• Whether unspent Halloween Pumpkin Coins carry over or convert. No conversion NPC or coin-to-Kina rate is listed.
• Whether the attendance board is per character or per account. The notice says “once per server” and stops there.
• The exact per-week purchase limit on the Candy Key morphs is stated as “once per week per server”, so one key of each colour per week is the safe reading — but the notice does not say whether that is one morph total or one per colour.
• Whether the event returns next year. Nothing calls it annual.

None of these change the play: claim daily, clear the ten missions, buy the chest first, and spend the rest on Odyle Energy if you are level 45.

The same November 3 boundary closes the Halloween Twitch Drops campaign, which runs alongside this event but has its own claim deadline of November 17. If you still want the Chubby Panda helm from that track, the drops page has the watch-time math and the account-link check that decides whether the rewards arrive at all.

Sources and verification

• Schedule, attendance reset, 14-day reward table, mission list and merchant stock — AION 2 Steam announcement “Trick or Treat”, AppID 3393110, published October 15, 2026 (gid 1846651706678483)
• Candy Key morph rates, candy contents and both removal schedules — same announcement
• Coin totals (620 attendance, 235 per weekly mission reset) — arithmetic on the published tables, labelled as such above
• Buff values for Halloween Candy and Cookie — the notice’s item-effect table

Evidence level: Official / Global. Every date, price, limit and quantity on this page is copied from the announcement. The only inferred numbers are the summed totals, and the only unresolved items are listed in the section above. The event is subject to the AION 2 Event Terms and Conditions linked from the notice.