The massively-multiplayer online (MMO) game will see its first major expansion 'Shadow of the Mad King' run over ten days, starting from October 22 and ending on October 31.
Copyright: ArenaNet/NCSOFT'Shadow of the Mad King' will focus on the possible return of Mad King Thorn - for most people, simply a myth and a "figure of folklore".
The expansion will also add a variety of new dynamic events, mini-games, decorations and paid PvP tournaments.
A webpage for the event will launch at 2pm BST today (October 17) on the official Guild Wars 2 website.
Guild Wars 2 was released last month for PC and Mac.
> Read Digital Spy's review of Guild Wars 2
Watch a trailer for Guild Wars 2 below: