Guinness World Records revealed its reader-voted list of the "Top 50 Videogame Series" of all time, with Bungie's flagship franchise Halo taking the number one spot. The company, which tracks and recognizes record-breaking achievements, notes that the series is the "Best-Selling First-Person Shooter (FPS) Franchise Ever", too. More than 13,000 readers voted for the list in an online poll hosted on the company's Gamer's Edition website between January and August 2009. The list is featured in the Guinness World Records 2010 Gamer's Edition, a variant of the popular record-keeping reference book dedicated to achievements by video games and their players. Activision Blizzard's Call of Duty franchise and Nintendo's The Legend of Zelda series placed second and third on the list respectively. The full list of Guinness World Records's "Top 50 Videogame Series" follows:

"We decided to take a different approach with this list than we did in the previous edition," says Guinness World Records gaming editor Gaz Deaves. "Instead of asking developers, industry insiders and journalists to rank their favorite titles, we approached a different kind of expert: the players themselves! We are confident that this 'top 50' more accurately reflects the tastes of the average gamer and not just the critics."