United Kingdom, March 3 -- Sony is facing a £2 billion class action lawsuit in the UK over claims it overcharged millions of players through the PlayStation Store.

The case, brought before the Competition Appeal Tribunal in London, has been filed on behalf of an estimated 12.2 million UK gamers by consumer advocate Alex Neill.

The claim alleges Sony abused its dominant market position by imposing "excessive and unfair" prices on digital games and in-game purchases sold via the PlayStation Store.

At the heart of the lawsuit is Sony's 30 per cent commission on digital sales - a fee applied to developers and publishers that the claimants argue is ultimately passed on to consumers.

The legal team contends that Sony's "closed ecosyste...