How is this list worked out?

EXP in each quest's reward table (QuestReward.ExpReward), grouped by the quest's recommended level; the top three per five-level band. EXP per quest, not per minute: the client has no quest durations. Exploration quests without a level are left out.

Computed · AION 2 client 2.0.6.0

Fastest leveling: best EXP quests

The AION 2 quests that give the most EXP in every five-level band, from the game's quest rewards.

The top EXP quests for every five levels are below; across all levels the biggest is The High Priest Awakens (level 44, 77,073,036 EXP).

Best EXP quests by level

#	Quest	Levels	Level	EXP
1	Withered Tree DaminuEpisode · Elyos	1–5	4	3,915
2	Isolated LakeEpisode · Asmodian	1–5	4	3,915
3	Fledgling WingsEpisode · Elyos	1–5	5	2,960
4	Brigade Base NeutralizationEpisode · Elyos	6–10	9	30,937
5	The Longest NightEpisode · Asmodian	6–10	9	30,937
6	Dawn LegionEpisode · Elyos	6–10	10	23,389
7	Rampaging SpiritsEpisode · Elyos	11–15	15	109,797
8	Dead Men Tell No TalesEpisode · Asmodian	11–15	15	102,495
9	Collapsed Barrier TowerEpisode · Elyos	11–15	14	97,407
10	Fortress Ruins InfiltrationEpisode · Elyos	16–20	20	359,068
11	Transformation PrepEpisode · Elyos	16–20	19	282,600
12	A Gesture of SincerityEpisode · Elyos	16–20	18	222,416
13	Best Served ColdEpisode · Elyos	21–25	25	849,322
14	Hidden SchemeEpisode · Elyos	21–25	25	849,322
15	Crime SceneEpisode · Elyos	21–25	25	849,322
16	Dying LightEpisode · Asmodian	26–30	30	2,812,524
17	Contaminated Sacred TreeEpisode · Asmodian	26–30	30	2,812,524
18	The Past RevealedEpisode · Asmodian	26–30	30	2,812,524
19	Fragmented TaleEpisode · Elyos	31–35	35	9,313,661
20	Zumion's WardEpisode · Elyos	31–35	35	9,313,661
21	Headless StatueEpisode · Elyos	31–35	34	7,330,196
22	Fafnite's WhereaboutsEpisode · Asmodian	36–40	40	25,866,929
23	Exiled RitualistEpisode · Asmodian	36–40	40	25,866,929
24	Healing HerbsEpisode · Asmodian	36–40	40	25,866,929
25	The High Priest AwakensEpisode · Asmodian	41–45	44	77,073,036
26	Lingering ApparitionsEpisode · Asmodian	41–45	44	77,073,036
27	Blood BarrierEpisode · Asmodian	41–45	44	77,073,036

How this list is worked out

EXP in each quest's reward table (QuestReward.ExpReward), grouped by the quest's recommended level; the top three per five-level band.

Assumptions: EXP per quest, not per minute: the client has no quest durations. Exploration quests without a level are left out.

From the game files: client 2.0.6.0 (Steam build 25767555, 2026-10-07). A patch that changes these tables changes the list.

Questions

What is the fastest leveling in AION 2?: The top EXP quests for every five levels are below; across all levels the biggest is The High Priest Awakens (level 44, 77,073,036 EXP).
How is this list worked out?: EXP in each quest's reward table (QuestReward.ExpReward), grouped by the quest's recommended level; the top three per five-level band. EXP per quest, not per minute: the client has no quest durations. Exploration quests without a level are left out.