Nightfall previewed this weekend

It's going to be a dark, dark weekend for some PC gamers. ArenaNet, the maker of the Guild Wars games, has announced that Nightfall will be descending all weekend. Starting today and running through Sunday, gamers can preview Guild Wars Nightfall during a special player-versus-player preview event.

The two new professions, dervish and paragon, will be available for trying out, as will their new abilities. Owners of Guild Wars and Guild Wars Factions will be able to create new characters and test out some of the new features of Nightfall. There will also be in-game competitions to receive items that can be exchanged for rewards throughout the event.

For more details on the Guild Wars Nightfall PVP preview event, head over to the game's official Web site.

Guild Wars Nightfall is the third campaign in the Guild Wars series and will be released in late October. For more on the game, check out GameSpot's reviews for Guild Wars and Guild Wars Factions.