October 13 brings two scheduled additions to Guild Wars 2: Shadow of the Mad King's return and Nexus of Eternity raid Legendary Mode. The Halloween festival runs through November 3.

ArenaNet announced both dates in its September fall roadmap. This is a reminder ahead of the update, rather than a new reveal or confirmation that either is already live.

Nexus of Eternity arrived with Code of Creation, the September finale of Visions of Eternity. Its raid Challenge Mode was scheduled for September 29. October 13 is the separate Legendary Mode date, so check which version your squad intends to attempt.

Purple vegetation and tall structures fill the blue-lit caverns of Leyspring Hollows.
Image: ArenaNet / NCSOFT.

The official Halloween event listing and Nexus Legendary Mode listing provide the event destinations. The checked sources confirm the schedule but do not establish this year's festival rewards or Legendary encounter mechanics.

Plan a return around October 13, then check the release notes before choosing a reward farm or a raid strategy. Older Halloween prize lists and Challenge Mode tactics need current evidence before they become advice for this update.