Many gaming companies enable BOKU's service, including Electronic Arts, Playfish, Playdom, Cie Studios, GameDuell, Cyberstep Communications, IGG, King.com, NHN USA, Ntreev, Outspark, Perfect World, Aeria Games, Games-Master (Cabal Online), K2Networks/GamersFirst, Meez, Three Rings and WeeWorld, among others.