share of the digital distribution market for video games. In February 2011, Forbes reported that Steam sales constituted 50–70% of the market for downloaded PC games and that Steam offered game producers gross margins of 70% of purchase price, compared with 30% at retail. Steam has been criticized for its reported 30% cut on revenue with publishers from game sales, a value that is similar to other digital storefronts according to IGN. However, some critics have asserted that the share no longer scales with cheaper costs of serving data a decade since Steam's launch. A 2019 Game Developers Conference survey showed only 6% of the 400 respondents deeming the share justified. Epic Games' Tim Sweeney postulated that Valve could reduce its cut to 8%, given that content delivery network costs has dropped significantly. Shortly following an announcement from Valve that they would reduce their cut on games selling over , Epic launched its Epic Games Store in December 2018, promoting that Epic would take only a 12% cut of revenue for games sold through it, as well as not charging the normal 5% revenue cut for games that use the Unreal Engine. The chat application Discord followed suit a few days later, promoting only a 10% cut on games sold through its store. In November 2009, online retailers Impulse, Direct2Drive and GamersGate refused to offer Call of Duty: Modern Warfare 2 because it includes mandatory installation of Steamworks. Direct2Drive accused Steamworks of being a "trojan horse", directing users to Valve's store. In December 2010, MCV/Develop reported that "key traditional retailers" would stop offering games that integrate Steam. One UK retailer said if there was already a digital service, they did not want to start selling a rival in physical stores. In June 2009, Doug Lombardi said Steam free weekends for Left 4 Dead on Steam had boosted sales at retail and Xbox 360 as well. Valve's business development director Jason Holtman replied Steamworks' features were chosen by developers and based on consumer wants and that Modern Warfare 2 was one of Steam's "greatest sellers". In December 2011, Football Manager 2012 developer Sports Interactive said the Steam requirement was a success because the game was not cracked for 10 days. Legal disputes Steam's predominance in the gaming market has led to Valve becoming involved in various legal cases. The lack of a formal refund policy led the Australian Competition & Consumer