Yahoo Games is the section of the Yahoo!website in which Yahoo users can play games either with other users or by themselves. The majority of Yahoo Games were closed down on 31 March 2014. Yahoo Announced that "changes in supporting technologies and increased security requirements for our own Yahoo web pages, made it impossible to keep the games running safely and securely."
The games on the website are typically Java applets or quick Flash games, but there are others which require a download. Many of the games that require a download contain TryMedia Adware (According to McAfee SiteAdvisor). Yahoo Games also includes Yahoo Video Games, which provides news, previews and reviews of currently available or upcoming First Party games–and Yahoo Games on Demand–which provides free demos and full-size downloads of full PC games for a charge.
The site also features an "All Star" system for users, in which a user can pay to get an All Star username. All Star users are able to get extra privileges on Yahoo Games sites such as disabling pop-up ads. All Star users do not have playable games without downloading.
Yahoo Games was built on Yahoo!'s acquisition of ClassicGames.com (previously known as SpringerSpan Games after the programmer's Springer Spaniel) in 1997. The current Yahoo Video Games section of the site was formerly known as Games Domain, from back when Yahoo! acquired the website in 2003. As of April 2011, Yahoo Games holds over 1,400 games, most of which were developed externally.
Yahoo! Games includes a popular internet chess server. In his book, The Chess Player's Bible: Illustrated Strategies for Staying Ahead of the Game, (2004), James Eade recommended Yahoo Chess as the best of Internet chess, writing that "action is to be found there at all times." Yahoo Chess differs from more contemporary Internet chess servers in its complete lack of oversight regarding user conduct or chess engine use.