Guild Wars Nightfall, the second expansion pack to the hit online RPG series, has shipped to retailers in North America and Europe and should be showing up on store shelves as of today, with the game's servers going live as of 12:01 AM PDT this morning.

Set in the arrid desert lands of Elona, the new Nightfall expansion promises a higher focus on storytelling compared to the previous installments, all the while delivering a ton of new game content including 20 new missions, hundreds of new skills, new customizable Hero companions and one-on-one PVP Hero Battles, two new professions (the Dervish and Paragon), and new armor.

For you collectors out there, also note that Guild Wars Nightfall comes in both a standard version and a Collector's Edition, which contains a "making of..." DVD, a collector's art book, collectible skill pins, a character mini-standee, an Elona map poster, and the official soundtrack CD. That's quite a collection of goodies!