PRS for Music has initiated legal proceedings against Valve Corporation, the operator of the games distribution service Steam, alleging that works represented by its members have been made available on the platform without the appropriate license. The society alleges that Valve has never obtained a license covering the musical works on behalf of songwriters, composers, and music publishers since Steam launched in 2003. The case will proceed unless Valve Corporation agrees to a licence covering both historic and future uses of music written by PRS on Steam.