Valve’s £656M UK Steam Lawsuit: Class, Allegations, and Status

The UK lawsuit against Valve, the company behind Steam, is a £656 million collective action certified by the Competition Appeal Tribunal in January 2026. It alleges that Valve abused a dominant position in PC game distribution by charging developers excessive commissions and enforcing pricing rules that kept game prices artificially high for roughly 14 million UK consumers. The case is proceeding on an opt-out basis, which means eligible buyers are already in the class without having to sign up.¹²

Who Is Automatically in the Class

You are covered if you were a UK resident on 11 March 2026 and paid for PC games or add-on content through Steam or another platform during the relevant period. The window depends on where in the UK you live:

England, Wales, and Northern Ireland: purchases between 4 June 2018 and 4 June 2024.
Scotland: purchases between 1 January 2010 and 4 June 2024.

The estimated class size is around 14 million people. If the claim succeeds, the projected payout is between £22 and £44 per person, with Scottish consumers potentially receiving more because of the longer claim period. Nothing is guaranteed; the case still has to be won or settled.³

Because the proceedings are opt-out, qualifying UK consumers do not need to register, pay anything, or take on any personal financial risk if the claim fails. The deadline to opt out was 11 June 2026, and that window is now closed. Anyone who wants updates can sign up through the campaign’s official site.³⁴

What the Lawsuit Says Valve Did

The claim centers on Steam’s commission structure. Valve charges game developers up to 30% on sales made through the platform. The rate drops to 25% on revenue above $10 million per title, and 20% above $50 million, but most games never come close to those thresholds.⁵ The claimants argue this rate is well above what a competitive market would sustain.

The second strand of the claim is about pricing rules. The lawsuit alleges Valve enforces “platform parity obligations,” sometimes called most-favored-nation clauses, that stop developers from selling their games more cheaply on rival storefronts. Competitors such as the Epic Games Store charge just 12% commission, but according to the claim developers cannot pass those savings to consumers because Valve would delist or penalize games found cheaper elsewhere. The result, the claimants say, is that prices stay uniformly high across the PC gaming market.⁶³

A third allegation targets tying and anti-steering. The claim says Valve requires all downloadable content and in-game purchases for games bought on Steam to go through Steam’s own payment system, subjecting every transaction to the same commission and blocking cheaper alternatives.⁷

The class representative is Vicki Shotbolt, founder and CEO of Parent Zone, a UK organization focused on families and the digital world.⁸ Shotbolt has said Steam “needs to cooperate fairly, and it’s clearly not,” and that developers have little practical alternative: “If you want to develop a PC game, you want it on Steam. It’s not like developers have ten other options.”⁹ The case is being run by Milberg London, with Natasha Pearman leading, and instructed counsel from Monckton Chambers alongside Robert Palmer KC.¹⁰

How the Tribunal Let the Case Go Ahead

The claim was filed on 5 June 2024.¹¹ On 26 January 2026, a three-member panel chaired by Mr Justice Hildyard, sitting with Paul Lomas and John Davies, granted a Collective Proceedings Order on an opt-out basis.¹²

Valve opposed certification. It argued that Steam’s “Steam Keys” system, which lets publishers generate free download codes to sell games through third-party stores without paying Valve commission, made the true effective commission rate impossible to calculate. It said the claimant’s economic method for measuring the harm caused by the parity rules was too vague. And it challenged the class definition, arguing that many Steam users are minors who would struggle to identify themselves. Valve also initially questioned the funding arrangements but dropped that objection after amendments.¹²

The tribunal rejected each argument. It accepted that Steam Keys create “a slightly unusual feature” in the economic analysis but said data gaps could be handled through reasonable assumptions at trial.¹³ Certification, it said, was not the moment to resolve disputed economic questions. The class definition point was addressed after the claimant narrowed the class to those who actually suffered loss.² The panel called the claim a “paradigm” example of an opt-out collective action, noting the individual amounts at stake were too small for anyone to bring a standalone claim.⁴

Steam’s Position in the Market

The claimants say Steam holds roughly a 75% share of the third-party PC games market.⁶ A 2025 survey of 306 game industry executives by Atomik Research found that 88% of studios said Steam accounts for more than 75% of their total revenue, and 72% of developers said they consider Steam a monopoly.¹⁴

Rivals exist. The Epic Games Store charges 12% commission and lets developers keep 100% of the first $1 million per product each year.¹⁵ GOG charges 30% and runs without digital rights management. Itch.io lets developers set their own revenue share. None approach Steam’s scale, though. In 2024 Steam generated $10.8 billion in revenue against $1.09 billion for the Epic Games Store.¹⁶ Valve’s Gabe Newell has previously rejected the monopoly framing, saying gamers have “enormous choice” in where they buy.¹⁷

Valve is fighting a similar claim in the United States. Wolfire Games v. Valve, filed in April 2021, was certified as a class action in November 2024 by Judge Jamal N. Whitehead of the Western District of Washington, covering around 32,000 developers.¹⁸ UK claimants cite documents from that case in which a Steam account manager allegedly told a developer Valve “would delist any games available for sale at a lower price elsewhere, whether or not using Steam keys.”⁶

Where the Case Stands Now

The Collective Proceedings Order was formally made on 11 March 2026, and a case management conference was scheduled for 22 June 2026. No trial date has been set. The core questions that still have to be decided are whether Steam holds a dominant position in the relevant market, whether Valve systematically enforced parity obligations on developers, and whether those practices caused UK consumers to pay more than they would have in a competitive market.¹⁹⁶

If you bought PC games during the claim period and were a UK resident on 11 March 2026, you are already in the class. There is nothing to file and nothing to pay. Any payout, and the timing of one, will depend on how the case is resolved.

1
BBC News. Steam Owner Valve Faces £656m UK Collective Action
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Competition Appeal Tribunal. Vicki Shotbolt Class Representative Limited v Valve Corporation, Judgment (CPO Application)
3
Steam You Owe Us. FAQs
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Milberg London. PC Gamers Win the First Battle Against Valve Corporation as £656m Competition Claim Receives Judicial Approval
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ClassAction.org. Class Action Claims Agreement Between Steam, Major Video Game Developers Led to Higher Prices for PC Games
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Esports Legal News. Steam £656m Lawsuit Platform Pricing
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Game Developer. Valve Faces Lawsuit Over Developer Commissions on Steam
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Cambridge Judge Business School. Parent Zone
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GamesIndustry.biz. Why Valve Is Facing a £656m Day in the UK Courts
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Consumer Voice UK. Video Gaming Platform Steam Faces Significant Lawsuit From UK Consumers
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Competition Appeal Tribunal. Summary of Collective Proceedings Claim Form
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Competition Appeal Tribunal. Vicki Shotbolt Class Representative Limited v Valve Corporation, Judgment (CPO Application), [2026] CAT 4
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ICLG. Steam Owner Valve Forced to Face GBP 656m Collective Action
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GamesPress. 53% of PC Developers Worry About Steam Reliance
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Epic Games Store. Epic Games Store Distribution
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Logrus IT. Beyond Steam
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PC Gamer. 72 Percent of Game Developers Reckon Steam Has a Monopoly on PC Games
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GamesIndustry.biz. Wolfire and Dark Catt’s Antitrust Lawsuit Against Valve Granted Class Action Status
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Steam You Owe Us. Steam You Owe Us