Xbox Live Arcade (XBLA) is an online service operated by Microsoft that is used to distribute video games to Xbox and Xbox 360 owners and from late 2007 to Games for Windows - Live users blank">http://www.xbox360fanboy.com/2007/08/15/xbla-hits-pcs-by-the-end-of-2007/. The service was first launched in late 2004 and offers games ranging in price from roughly _US$5 to US$15. In late 2005, Xbox Live Arcade was relaunched with the release of the Xbox 360 in which new games and features were offered. The games are generally aimed toward more casual gamers, striving for "pick up and play" appeal. Examples of some of the more popular among them are Lumines Live!, Doom, Street Fighter II: Hyper Fighting, Geometry Wars: Retro Evolved, Catan, Pac-Man Championship Edition, Gauntlet, Smash TV, Prince of Persia Classic, Bomberman Live and Cloning Clyde. As of March 12, 2008, there have been 121 titles released for Xbox Live Arcade on the Xbox 360.