King.com has overtaken Electronic Arts with their games on the Facebook gaming platform.
They now have around 10 million users playing their games on Facebook on a daily basis.
Bubble Witch Saga is one of their most successful games with more users than even Farmville.
The company said: “Our ultimate ambition is to be the leader in our segment of games for the casual social player, mainly female, social and mobile. Our target is to reach Zynga.”