Games developers are involved in the creation and production of games across various platforms and their work involves design or programming. Games development is a multi-billion pound industry that can take teams of up to 200 professionals up to three years to make a game from concept to finished product. Video game publishers finance development, distribute published games, and perform other functions like deciding on licenses, localization, packaging, and marketing. Console manufacturers serve as gatekeepers that approve games for their platforms and provide support to developers, while having power over what titles get priority marketing.