Valve Corporation will face a £656m lawsuit in the UK over alleged unfair prices on its global online store, Steam, following a tribunal ruling that the case could continue.

The gaming giant is being accused of abusing its market dominance by imposing restrictive terms on game publishers and locking players into using Steam, the world’s largest distribution platform for PC gaming.

The legal action was brought by digital rights campaigner Vicki Shotbolt in 2024 on behalf of up to 14 million Steam users across the UK, who could be in line for compensation if she wins.