Betting as an Offense: Risks for Players and iGaming Affiliates

In many jurisdictions, liability for illegal gambling doesn't fall only on operators, organizers, and payment intermediaries. Players themselves can be on the hook too. In the harshest regimes, placing an illegal bet, playing at an underground casino, or using an unauthorized online operator can end in an administrative fine, confiscation of winnings, or even a criminal case and imprisonment.

For affiliate teams and iGaming project owners, this is critical: having traffic from a country doesn't imply it can safely be pushed to an offer. If local law criminalizes the bettor's actions, marketing an unlicensed platform raises not only regulatory but also reputational risks for the brand, affiliates, payment providers, and the users themselves.

Important: this article is for informational purposes and is not legal advice. How a case is classified depends on the player's citizenship and location, the type of game, the size of the bets, the operator's status, whether the violation is repeat, and other circumstances. Before launching campaigns, you need a current check with a local lawyer.

So what happens when a state punishes not just the operator but the player too, for illegal gambling? In a 3S.INFO article, we break down where liability for engaging in illegal play carries fines and imprisonment, why a foreign license doesn't always protect the user, and how these rules play out in real cases. We also explain what affiliates need to check before launching traffic so they don't create a false impression that an offer is legal.

Why the Player Can Be Liable Too

Regulators use different models for tackling illegal gambling.

In the lenient model, the state pursues almost exclusively the supply side: unlicensed operators, organizers, venue owners, ad networks, and payment intermediaries. The player is treated as an end consumer, not as a key offender.

In the strict model, taking part in illegal play constitutes an offense in its own right. It's usually framed as:

• joining an unauthorized game of chance;
• betting with an illegal bookmaker;
• playing in an illegal gambling establishment;
• taking part in underground poker, a lottery, or betting;
• using an illegal remote gambling service;
• systematic or habitual participation in gambling.

That said, "illegal" doesn't always amount to a total ban on gambling in the country. Often the market is formally legal, but the player is punished for betting with an operator that lacks a local license, or outside a permitted channel.

An Important Distinction: Somewhere the Game Is Banned, Somewhere It's the Game With a Specific Operator

These are two different legal models.

In Latvia, the problem is that an online operator lacks a local license. In Poland, a foreign license also doesn't make an offer legal: the Ministry of Finance warns plainly that a permit from another country doesn't legalize activity in Poland.

In Japan, the police frame the ban more broadly: connecting from the country to an overseas online casino to play for money is a crime, even if the site operates legally abroad.

In China, what matters for the relevant administrative offense isn't just the fact of any play, but participation with a significant stake. South Korea also has exceptions and special permitted regimes, so the phrase "any play for money always leads to prison" would be wrong.

This Isn't Just About Formal Bans

There's evidence that the law is applied to participants. In its 2026 investigation reports, Singapore police separately list penalties for those who play with an illegal provider. Japanese police publish examples of users being prosecuted for connecting to overseas online casinos from home.

Still, the statistics shouldn't be conflated: the total number of people detained in an operation can include players, organizers, intermediaries, and bank account holders. That figure isn't the same as the number of ordinary users convicted.

Countries Where the Player Is Liable for Taking Part in Gambling and Betting

We've put together representative jurisdictions where the rules explicitly provide for sanctions against the participant in illegal gambling.

Singapore: Separate Liability for Playing With an Illegal Operator

Singapore is one of the clearest examples of a "three-tier" model. Legislators and law enforcement separate operators, agents, and players, meaning punters are treated as a distinct category of potential offenders.

For the player, betting with an illegal operator can carry a fine of up to SGD 10,000, up to six months' imprisonment, or both. Crucially, the approach isn't limited to land-based games: illegal offline betting and play over the internet can be equally risky.

For traffic, the claim that "the site operates outside Singapore" doesn't by itself eliminate the risk: the regulator looks at whether the service is illegal and whether the user took part in it.

• Singapore is an attractive Asian GEO with a high-spending audience and strong conversion, but its online gambling regulation is among the strictest in the world. For a media buyer, it's important to clearly distinguish what's permitted locally, which offers can genuinely be considered "white," and in which cases you're working with foreign .com brands for an audience that is looking for ways to bypass restrictions on its own.

Singapore: Player Fined S$10,000 for Betting on an Illegal Site

• Date: November 25, 2019.
• Who: Lau Jian Bang.
• Final penalty after appeal: two fines of SGD 5,000 each.

This is an older but telling case of a penalty imposed specifically on an ordinary bettor. Lau placed football bets through an unauthorized site. Across two charges, the case involved 13 bets worth SGD 50,000. He was initially sentenced to two weeks in jail, but the High Court replaced that with fines. The defense stressed that the accused was only a player, a punter, not an organizer. The court considered what penalty was proportionate for a first offense tied to remote gambling. The case was heard under the previous Remote Gambling Act. It can't be used to describe the maximum sanctions in force today, but it does confirm that a player can, in fact, be punished by a court.

Hong Kong: Betting With an Illegal Bookmaker Is Punishable Too

In Hong Kong, participating in illegal gambling is also expressly classified as an offense. In the authorities' official guidance, betting with an illegal bookmaker is cited as a specific example. The maximum penalty for a participant is a HKD 50,000 fine and up to nine months' imprisonment.

This matters especially for the sportsbook vertical. In such systems, the risk for the player arises not only from visiting an underground casino or taking part in a physical game, but also from dealing with a bookmaker that has no right to accept the relevant bets.

• For iGaming and gambling/betting media buyers, Hong Kong is far from a "light" market you can enter with a set of casino offers and turn a quick profit. It's a strictly regulated jurisdiction with a single-operator monopoly, extremely high household incomes, near-total digitalization, and a pronounced audience interest in horse racing and football betting, rather than in slots as iGaming usually understands them.

Japan: A Fine for Gambling, and a Separate Offense for Habitual Gambling

Japanese criminal law uses a broad construction: a person who takes part in a game of chance can be punished with a fine of up to JPY 500,000 or a minor fine. The only exception covers occasional bets on items intended for short-term entertainment.

Separately, the criminal code singles out habitual gambling, meaning habitual and systematic participation. It carries imprisonment with labor for up to three years.

So when preparing content or buying Japanese traffic, simplifications like "only online casinos are banned" are especially dangerous. The baseline risk in the Japanese model comes from taking part in an unauthorized game of chance itself, though in practice how a case is classified always depends on the specific format and circumstances.

• Japan isn't a market where international iGaming operators can enter through the classic playbook. Everything here is closed, tightly regulated, and under close state control. Legal play is only possible within narrow limits: pachinko and pool betting on four sports. Meanwhile, getting into the market through integrated resorts means overcoming a mountain of bureaucracy, investing enormous sums, and running into public disapproval.

Japan: JO1 Member Fined for Playing at an Overseas Online Casino

• Date: August 21, 2025.
• Who: Shion Tsurubo, a member of the group JO1.
• Penalty: a ¥100,000 fine, about $675 at the time of publication.

According to a CasinoBeats report citing Yomiuri Shimbun, the Tokyo Summary Court issued the fine after the defendant pleaded guilty. Prosecutors said he played roulette several times on the overseas site K8 from within Japan between December 2023 and June 2024. This case is specifically about using an online casino: the report does not accuse him of operating the site or recruiting other players. According to police, total play amounted to about $104,000, with losses of about $48,600.

Japan: Baseball Club Employee Fined for Online Gambling

• Date: October 7, 2025.
• Who: an unnamed representative of the Chunichi Dragons club.
• Penalty: a ¥100,000 fine.

CasinoBeats, citing Mainichi Shimbun, reports that the Nagoya Summary Court issued a fine for playing at an online casino. Prosecutors did not disclose the names of those involved or the grounds for individual procedural decisions. Two club representatives appeared in the case: one was fined, and the second was not brought to court. The club previously said that manager Shinichiro Koyama was among those under review, but the source doesn't allow for a confident claim that he was the one fined.

Separately: Sports Fines Are Not Criminal Judgments

On March 24, 2025, the Japanese baseball organization NPB announced sanctions against 16 players for using online casinos. The total amount of sanctions was ¥10.2 million; the individual amounts were set by the teams based on the circumstances. This is real punishment for players, but it's disciplinary, coming from the sports system.

South Korea: A Bet Isn't Always Harmless

Article 246 of the Criminal Act of the Republic of Korea provides for a fine of up to KRW 10 million for a person who commits a gambling offense. The exception is framed for play "for mere pastime," but that exception can't automatically be extended to bets with a notable financial interest, regular play, or commercial schemes.

If participation is habitual or systematic, the penalty ceiling rises: up to three years' imprisonment or a fine of up to KRW 20 million.

For performance marketing, this is an important signal: product communication that pushes toward regular betting, VIP activity, or aggressive deposit win-backs can look considerably riskier than a single interaction between a user and a permitted product.

• For a media buyer, South Korea's iGaming isn't a GEO where you push traffic into the green and forget about it. Online is squeezed into tight regulatory limits, but the offline market is powerful. At the same time, the country has a wealthy population, furious digitalization, a cult of sports and esports, a high average order value, and a stable economy. Everything we love, except there's a thick layer of legal restrictions on top.

South Korea: Comedian Gets Suspended Sentence in Illegal Gambling and Drunk Driving Case

• Date: September 1, 2026.
• Who: Lee Jin-ho.
• Penalty: 1 year and 6 months' imprisonment, suspended for 3 years, plus 120 hours of community service.

The court found systematic participation in illegal online gambling. According to case materials, between May 11, 2023 and October 14, 2024, Lee transferred more than ₩870 million to gambling sites across 664 transactions. But there's a crucial caveat: the sentence was handed down on a combined set of charges, including drunk driving. So a headline like "a year and a half for betting alone" would be inaccurate. In September, The Korea Herald reported that neither the prosecution nor the defense filed an appeal within the deadline, and the verdict took effect.

Vietnam: Amounts and Repeat Offenses Matter

In Vietnam, a player can face criminal liability for illegal gambling when betting money or property worth between VND 5 million and less than VND 50 million. Potential sanctions include a fine of VND 20 million to VND 100 million, non-custodial corrective measures of up to three years, or imprisonment from six months to three years.

Even if the amount is under VND 5 million, the risk doesn't disappear entirely. Criminal liability can apply if the player has already received an administrative penalty for a similar violation or has an unexpunged conviction for the relevant offenses.

Under qualifying circumstances, including high bet amounts, the maximum prison term can range from three to seven years.

• If Vietnam brings to mind only straw hats and fishermen in boats, that image is long outdated. Amid the endless flow of motorbikes and Southeast Asian bustle, one of the world's most dynamic gambling markets is thriving here.

Penalties for iGaming in Vietnam: Two Former Officials Get Prison Time for Taking Part in Illegal Gambling

• Date: November 12, 2025.
• Location: Hanoi, the King Club gambling venue at the Pullman hotel.

According to an AFP report published by The Straits Times, the court handed down:

Both appear in the news as players, not as organizers of the club.

An important detail: the slot machines, roulette, and baccarat tables at the club were licensed to serve foreigners, but not Vietnamese citizens. According to the prosecution, local visitors were issued cards with fictitious foreign names. In other words, the venue's license didn't make these particular users' participation legal.

Macau: Risks Remain Even in a Casino Hub

Macau is associated with a large legal casino industry, but that doesn't mean you're free to take part in any gambling product. Local law separates permitted gambling from illegal operations. Taking part in illegal games can carry liability in the form of up to six months' imprisonment or a monetary penalty.

The rules also separately cover being present in an unauthorized gambling establishment, and regulatory changes have sharpened the focus on illegal online betting and illegal gaming operations.

The main takeaway for the industry: the existence of a legal casino market doesn't automatically make offshore online offers, unauthorized bets, or gray schemes around the licensed sector permissible.

What This Means for iGaming Content and Affiliates

In a GEO review, it's not enough to write: "Illegal operators get blocked." If there's a penalty for the player, that's a separate, material risk worth flagging alongside the licensing information.

Especially dangerous is the wording "the casino has an international license, so it's fine to play." The examples of Poland and Japan show that a foreign permit doesn't protect the user from a local ban.

For the material, consider a disclaimer like this:

In some countries, taking part in illegal gambling is itself an offense. Liability can include a fine, administrative detention, or imprisonment. You need to check not only the operator's license, but whether the specific game is permitted for the user in the relevant jurisdiction.

And separately: failure to pay tax on winnings, fraud, using someone else's documents, and the participation of a minor are independent grounds for liability. They shouldn't be conflated with a penalty specifically for playing with an illegal operator.

What to Check Before Launching Traffic

For an affiliate manager or an SEO team, it's not enough to check whether gambling is legal "in general." You need a narrower legal matrix.

• Check whether a local license exists for online casino, sports betting, poker, lotteries, and fantasy sports: the regimes for these verticals often differ.
• Establish who the ban applies to: the operator, the agent, the ad platform, the payment intermediary, the player, or everyone in the chain.
• Separate "not licensed in the country" from "completely banned": in the first case, some local operators may be legal; in the second, the risk is often higher for every participant.
• Check extraterritorial wording: the user's location, the method of accepting the bet, local payment methods, and ad targeting all matter.
• Study the amount thresholds, repeat-offense rules, and qualifying circumstances: Vietnam and a number of Asian countries use exactly this escalation model.
• Don't confuse a domain block with the absence of an offense: a site being technically accessible doesn't confirm that playing is legal.
• Factor in KYC and payment risks: if an illegal operator is identified, a bank or payment service may freeze the transaction, request proof of source of funds, or terminate service.

The most notable examples of countries where the player themselves can face punishment for illegal gambling are Singapore, Hong Kong, Japan, South Korea, Vietnam, and Macau. Sanctions range from fines to actual imprisonment, and in some systems they escalate for repeat offenses, large bets, or systematic participation.

For the iGaming affiliate market, the practical takeaway is simple: when evaluating a GEO, you need to analyze not only the operator's status and advertising restrictions, but also the legal risk to the end user. If a player can be punished for the very act of betting with an unlicensed brand, that market demands an especially conservative compliance approach, a local legal check, and a complete refusal to use wording that creates the impression an offer is legal without a confirmed license.