A game provider is the studio that makes slots and supplies them to casinos. It designs the theme and features, builds the maths model that sets RTP and volatility, and gets each game tested and certified.
Providers supplying games to GB customers need their own Gambling Commission licence, and their games must pass testing against the Remote Technical Standards before release. Most games are hosted on the provider's own servers, with the casino connecting to them, so the operator cannot alter a game's maths beyond choosing from the certified RTP versions.
Well-known providers include NetEnt, Pragmatic Play, Play'n GO, Big Time Gaming and Nolimit City. Some studios are subsidiaries of larger groups. See our provider pages for more.