Microsoft hopes to bring the Xbox Game Pass to "every device" on the market.

Xbox One

Xbox One

That is according to Xbox boss Phil Spencer, who talked about the company's long-term ambitions during a conference in San Francisco, where he revealed plans to reach billions of gamers worldwide with the help of the subscription service.

He said: "When you think about reaching a customer with this content where their only compute device could be an Android phone, you think about, 'What are all the ways that person pays for content today?'

"So we need to make sure that we're world-class at free-to-play content, but we also look at subscription as a much lower barrier way for a customer to build a library of content.

"So we built Xbox Game Pass - it started on console, it will come to PC, and eventually it will come to every device - we use the flywheel that we have with customers on an Xbox to start the growth in Xbox Game Pass.

"But as somebody sitting back and taking a longer-term view of where our business is going, you should look at that as a business model that we think scales to billions of people not hundreds of millions of people like retail does."