Achievements are optional tasks that can be solved for Achievement Points and titles. Achievements are subdivided into different categories (General, Events, etc.), and can be found in the "Tasks" window (default: Q), between Compendium and Daily Challenges.
All achievements under Legacy tab can't be done anymore.

Select the category from the menu below (click the appropriate picture)

General-A-M Dracania-A-M
Heroic Deeds-A-M Parallel World-A-M
Events-A-M Workshop-A-M
Battle-A-M Legacy-A-M

The old, outdated Achievement article can be found HERE!

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