PokerStars is the largest online poker cardroom in the world, with nearly 50 million registered players at the start of 2012.It hosts more daily tournaments than any other poker site or live card room, and more hands have been dealt on PokerStars.com than any other site.
A PokerStars.com online satellite tournament produced the 2003 World Series of Poker (WSOP) champion, Chris Moneymaker. As the first person to become a world champion by qualifying at an online poker site,Moneymaker's 2003 win was an important factor in catalyzing the poker boom of the mid-2000s. This has been referred to in the press as the "Moneymaker Effect."
PokerStars offers a downloadable poker client for both Windows and Macintosh operating systems, offering the same features to users of each client. The Windows client has been reported to work on Linux operating systems using the Wine software. In January 2012, PokerStars introduced a downloadable mobile client for the iOS from iTunes, and in February 2012 for the Android from the PokerStars website.
On July 31, 2012, PokerStars purchased its former competitor, Full Tilt Poker.The deal worth $731 million settles a civil lawsuit with the Department of Justice and acquires the assets of Full Tilt Poker.