An International e-Sports team which is headquartered in the United Kingdom competes  in what developed and published by Riot Games for Microsoft Windows and macOS?
Team Dignitas Team Dignitas is an International e-Sports team which is headquartered in the United Kingdom. It was founded on 9 September 2003 as a fusion of the "Battlefield 1942" clans Legion Condor and Sweden Kompanix and it was acquired by the Philadelphia 76ers in September 2016. While the clan began as a pure Battlefield clan in the beginning, it has since expanded into a wider range of games. In July 2004, Team Dignitas was registered as a company: Team Dignitas Ltd. The Managing Director is Michael "ODEE" O'Dell. Team Dignitas "League of Legends" currently competes in the North American League of Legends Championship Series, having been merged with Apex Gaming under 76ers ownership. The team had previously been relegated from the league by Team Dragon Knights.
Backyard Basketball Backyard Basketball is an entry into the "Backyard Sports" franchise of video games. Originally developed by Humongous Entertainment and published by Infogrames Entertainment SA, the game was released for Microsoft Windows and Macintosh platforms in 2001. Since its original release, the game has been ported to a variety of consoles, each sporting different characters and slightly altered gameplay mechanics.