King.com has nine computers running its Hadoop cluster and nine analysts looking the data. However, Eirksson said that this is a 'moving target' and plans to increase capacity often.

He also said that finding the skills to run Hadoop, which can be tricky, wasn't a problem for the gaming giant.

He said: "We were lucky because the founders of King have a lot of connections in the IT world and got a contractor from a start-up called Big Data AB.

"He has been working with us for a year now and without his knowledge and great engineering skills it would have been quite hard to do because nobody internally knew the best way to set this up."

He added: "It can be hard to find people to work with Hadoop because you have to be a cross-breed between data warehousing, analytics and programming."