The CSGO Lotto scandal and the history of skin gambling

Counter-Strike: Global Offensive launched in 2012. In August 2013, Valve released the Arms Deal update, which added weapon skins: cosmetic designs for in-game weapons, obtained from drops or by opening cases with keys bought for real money.

Skins had no effect on gameplay, but some were rare, and players loved them. Crucially, they could be traded through Steam and sold on the Steam Community Market for Steam Wallet funds. Third-party marketplaces soon let players sell skins for real cash.

That combination made skins behave like a currency:

• They had market prices set by supply and demand.
• They could be moved between accounts in seconds.
• They could, with some effort, be converted to money.

It did not take long for people to realise skins could be used as stakes. First came betting on professional CS:GO matches, then games of chance: jackpots, coinflips and roulette wheels where players deposited skins and the winner took the pot. These are the same formats covered in our CSGO jackpot, CS:GO coinflip and CS2 roulette guides.

From 2014 to 2016, skin gambling grew into a large, largely unregulated industry. Industry analysts at the time estimated that billions of dollars' worth of skins were wagered each year, though exact figures are hard to verify.

Why it grew so fast

• Easy access. Anyone with a Steam account and skins could play. Many sites had no age or identity checks.
• Streaming. Twitch and YouTube creators broadcast big wins to young audiences.
• Social play. Pots and wheels were watched by everyone in chat, making every round an event.
• Low friction. Deposits were trade offers, not bank payments.

How sites worked

Sites used automated Steam accounts, called trade bots, to receive and send skins. When a player deposited, the bot accepted the items; when a player won, the bot sent items back. The site kept a percentage of each pot as its fee.

The weak points

Most sites published little or nothing about how winners were chosen. Players had to trust the operator. Many operators were anonymous, and few were licensed anywhere. And because skins were not legally "money" in many places, it was unclear which rules, if any, applied.

CSGO Lotto was one of many skin gambling sites, but it became the most notorious.

What happened

Two popular YouTubers, Trevor Martin (TmarTn) and Tom Cassell (Syndicate), posted videos showing themselves winning large amounts on CSGO Lotto and encouraging viewers to try it. In early July 2016, other YouTubers and journalists found public business records showing that Martin and Cassell were the owners of the company behind the site.

Neither had clearly disclosed that ownership in their videos. Viewers, many of them young, had been watching the site's owners promote it as if they were ordinary players.

The reaction

The revelation spread quickly and caused an outcry. It raised obvious questions: were the promoted wins real? Were outcomes arranged? Was anyone checking the ages of players? Both creators apologised, and the scandal became a symbol of everything wrong with the skin gambling scene.

The FTC settlement

In September 2017, the US Federal Trade Commission announced a settlement with Martin and Cassell. The FTC said they had endorsed the site without disclosing that they owned it and had paid other influencers to promote it without requiring disclosure. It was the FTC's first complaint against individual social media influencers. The settlement required clear disclosure of such connections in future.

The CSGO Lotto scandal arrived at a moment when pressure was already building.

Lawsuits

In June 2016, a lawsuit was filed in the US against Valve and several sites, arguing that Valve had enabled underage gambling through its trading system. Further lawsuits followed. Outcomes varied, and several were dismissed or moved to arbitration, but they drew mainstream attention.

Valve's statement

On 13 July 2016, Valve published a statement saying it had never had business relationships with gambling sites and that using Steam trading to run gambling businesses broke its terms. It began sending cease-and-desist letters to sites and said it would disable accounts used for gambling.

Regulators

Regulators in several countries looked at skin gambling. In October 2016, the Washington State Gambling Commission ordered Valve to stop allowing its platform to be used for skin gambling. The UK Gambling Commission later prosecuted operators of an unlicensed skin gambling site that had allowed children to gamble.

The result

Many sites closed within weeks. Others moved offshore, changed their deposit methods or continued quietly. The easy, unregulated era was over.

The problems of skin gambling were not about the games themselves. Jackpots, coinflips and roulette wheels are simple and, when run honestly, fair. The problems were about trust and responsibility.

Disclosure

Viewers deserved to know when a promoter owned or was paid by a site. Undisclosed promotion is now recognised as deceptive in many jurisdictions.

Age and eligibility

Many players were children. Any gambling site has a duty to require that players are of legal age and allowed to gamble where they live.

Verifiable results

Most skin sites never proved their results were random. Players had to take their word for it. Provably fair systems, which commit to results before a game and let anyone verify them afterwards, were a direct response. See our provably fair casino guide.

Clear money

Skin values were fuzzy and moved with the market, which led to disputes. Exact dollar-denominated stakes remove that ambiguity.

Responsible play

Fast, social games can encourage playing more than planned. Clear information, limits and signposting to help, such as in our gambling budget guide, matter.

After 2016 the scene changed shape rather than disappearing.

Case openings and loot boxes

The debate moved to loot boxes, including CS:GO's own cases. Several countries examined whether paid random rewards counted as gambling. Belgium and the Netherlands took action against some loot box mechanics in 2018, and the debate continues in other countries.

Valve's trade changes

Valve introduced trade holds and later restrictions on newly acquired items, which made rapid skin movement for gambling harder.

Counter-Strike 2

In September 2023, Counter-Strike 2 replaced CS:GO. Skins carried over, and the community kept its culture, but the gambling formats increasingly moved away from skins.

Crypto PvP

Many players who grew up with skin jackpots now look for the same formats with crypto stakes. Crypto brings exact values, transparent transfers and the ability to publish verifiable results. It also brings its own responsibilities around wallets, networks and security, covered in our crypto wallet guide.

PVPspinArena is inspired by the CS:GO era's player-versus-player games, but it is built to avoid the problems that ended it.

• Player versus player. Jackpot and Coinflip pots are made only of players' stakes. The site keeps only its configured fee, which defaults to 0%.
• Provably fair. Every Jackpot, Coinflip and Roulette round commits a seed hash before entries and can be verified on the Fairness page.
• Exact dollar balances. Balances are held in US dollar cents and funded with USDC or ETH on Base, so there are no price disputes.
• Transparent payments. Deposits and withdrawals are blockchain transactions you can look up, with published limits and review thresholds.
• No skins, no Steam trading. There are no trade bots and no dependence on another platform's terms.
• Eligibility. Players must be of legal age and allowed to gamble where they live.

For the full picture, read how it works and our about page.

• 2012: CS:GO launches.
• 2013: The Arms Deal update adds weapon skins and cases.
• 2014–2015: Skin betting and skin gambling sites grow rapidly.
• June 2016: A lawsuit is filed against Valve and gambling sites in the US.
• July 2016: Reports reveal the owners of CSGO Lotto had promoted it without disclosure.
• 13 July 2016: Valve states gambling via Steam trading breaks its terms and sends cease-and-desist letters.
• October 2016: Washington State Gambling Commission orders Valve to stop skin gambling on its platform.
• September 2017: The FTC announces a settlement with the CSGO Lotto owners.
• 2018: Belgium and the Netherlands act against some loot box mechanics.
• September 2023: Counter-Strike 2 replaces CS:GO.

It is tempting to see the skin gambling era as a closed chapter, but its lessons apply to every new form of online play. Whenever a new currency, platform or game format appears, the same questions come up: who is running the site, how are results chosen, who is allowed to play and how does money move in and out? The answers that skin gambling got wrong are exactly the ones worth checking today.

For players, that means looking beyond flashy wins on stream. Check whether promoters disclose their relationships, whether a site verifies ages, whether it publishes and lets you verify its results, and whether its payment terms are clear before you deposit. For operators, it means building those protections in from the start rather than adding them after a scandal.

The formats themselves, a shared pot, a two-player duel, a colour wheel, remain some of the most straightforward and social games online. Run transparently, with fair maths and honest promotion, they can be enjoyed as entertainment without repeating the mistakes that brought the first generation down.

Weapon skins turned CS:GO into an economy, and from 2014 skin gambling grew into a vast, mostly unregulated industry of jackpots, coinflips and roulette wheels. The CSGO Lotto scandal in 2016, when two YouTubers were revealed to own the site they promoted, became the defining example of its problems.

Valve's crackdown, lawsuits, regulators and an FTC settlement ended the easy era. The lessons were clear: disclose relationships, keep children out, prove results and keep money clear.

The player-versus-player formats survived. Today's crypto PvP sites can offer the same games with exact stakes and verifiable outcomes, as long as they take those lessons seriously.

More cs:go heritage reading lives in our CS:GO heritage guides.