MercurySteam Entertainment, S.L. is a game developer based in San Sebastián de los Reyes, Spain. The company makes titles for the major platforms, including PC, Xbox 360 and PlayStation 3. The company was founded by former members of Rebel Act Studios. Dave Cox is a freelancing producer who has helped MercurySteam during the Castlevania: Lords of Shadow trilogy, mainly with Mirror of Fate and Lord of Shadow 2.