You told yourself it was entertainment. Just a way to make the game more interesting. Twenty dollars here, fifty there. The apps made it so easy, so seamless, that placing a bet felt less like gambling and more like participating. You could do it from your couch, during commercial breaks, in line at the grocery store. The notifications kept you engaged. The free bets kept you coming back. And then, somewhere along the way, something shifted. You started chasing losses. You started betting on games you did not care about, sports you barely understood. You lied to your spouse about where the money went. You borrowed from family members, promising yourself this would be the last time. When you finally admitted you could not stop, when the shame became unbearable and you sought help, you learned there was a name for what had happened to you: gambling disorder.
Your therapist explained it as a behavioral addiction, as real and as devastating as substance addiction. The same brain pathways, the same compulsive patterns, the same inability to stop despite mounting consequences. You felt relief at having a diagnosis, but also confusion. You had never been a gambler before. You had never set foot in a casino. You had simply downloaded an app that was advertised during every football game, that promised a safe and fun way to enhance your sports watching experience. How had this happened so quickly? How had you lost control so completely? And why had no one warned you that this was possible?
What you did not know then, and what the litigation now unfolding against the major sports betting companies alleges, is that the speed and severity of your addiction may not have been an accident. Court filings claim these platforms were designed using behavioral psychology research specifically intended to maximize engagement and encourage continuous betting. The lawsuits allege that companies like DraftKings, FanDuel, and BetMGM had access to data showing how quickly users developed problematic gambling behaviors, and that they made design choices that prioritized user retention and betting frequency over safety.
What Happened
Gambling disorder is what clinicians call a behavioral addiction. It affects the same reward centers in your brain that respond to drugs or alcohol. People with gambling disorder experience an inability to control their betting despite serious negative consequences. They chase losses, betting more to try to win back what they lost. They become preoccupied with gambling, thinking about it constantly, planning their next bet even when they are supposed to be focused on work or family. They need to bet increasing amounts to achieve the same excitement. They become restless or irritable when they try to cut back or stop.
The financial devastation can be swift and total. People drain their savings accounts, max out credit cards, take out loans they cannot repay. They borrow from friends and family under false pretenses. Some commit fraud or theft to fund their gambling. The average debt for someone seeking treatment for gambling disorder often exceeds fifty thousand dollars, and many people lose far more. Retirement accounts disappear. College funds vanish. Homes go into foreclosure.
The emotional and relationship destruction runs even deeper. Marriages collapse under the weight of lies and broken trust. Children lose their sense of security. People with gambling disorder experience rates of depression and anxiety far higher than the general population. Suicidal thoughts are common. The shame is profound and isolating. Many people describe feeling like they were watching themselves from outside their body, unable to stop behaviors they knew were destroying their lives.
What makes mobile sports betting particularly dangerous is the speed at which this progression occurs. Traditional problem gambling often developed over years. With betting apps, the research shows people can go from casual user to severe gambling disorder in a matter of months. The constant accessibility, the integration with live sports, the immediate gratification, and the elimination of any natural pause in the betting cycle all contribute to an accelerated addiction timeline.
The Connection
Mobile sports betting apps create gambling disorder through a combination of accessibility, design features, and psychological manipulation techniques that exploit known vulnerabilities in human decision-making and reward processing. The mechanism is both psychological and neurological.
First, there is the issue of accessibility. Research published in the journal Addictive Behaviors in 2019 found that continuous access to gambling significantly increases the risk of developing gambling disorder. When gambling is available twenty-four hours a day from a device in your pocket, the natural barriers that once limited gambling behavior disappear. You do not have to drive to a casino. You do not have to wait for a weekly poker game. You do not have to cash a check or withdraw money from an ATM. The friction that once provided natural stopping points has been eliminated.
Second, the apps employ what behavioral psychologists call variable ratio reinforcement schedules. This is the most powerful type of behavioral conditioning known to science. The reward comes at unpredictable intervals, which creates a much stronger compulsive response than predictable rewards. Research dating back to B.F. Skinner in the 1950s demonstrated that variable ratio schedules produce behavior that is extremely resistant to extinction. You keep betting because the next bet might be the winner, and there is no way to predict when that will occur. A study published in the Journal of Gambling Studies in 2021 found that mobile betting apps create reinforcement schedules more similar to slot machines than to traditional sports betting.
Third, there is the phenomenon of in-play or live betting. This feature allows users to place bets continuously throughout a game, not just before it starts. Research published in the International Gambling Studies journal in 2020 found that in-play betting is associated with significantly higher rates of problem gambling compared to traditional pre-game betting. The constant decision-making, the immediate results, and the opportunity to chase losses in real-time create a gambling experience that is far more addictive than conventional sports betting. Each bet triggers a dopamine response in the brain, and with in-play betting, users can experience dozens of these dopamine hits during a single game.
Fourth, the apps use personalization algorithms that track user behavior and adjust offerings accordingly. A 2022 study in the journal Computers in Human Behavior found that betting apps employ sophisticated data analytics to identify users who are showing signs of heavy engagement and to target those users with promotions, bonuses, and inducements to continue betting. The algorithms can identify when a user is chasing losses and can present offers at precisely the moment when the user is most vulnerable.
Fifth, there is the psychological impact of what researchers call losses disguised as wins. This occurs when a bet returns some money but less than the amount wagered, yet the app presents it with the same celebratory sounds and visual effects as a actual win. Research published in the Journal of Behavioral Addictions in 2018 found that these false wins activate the same reward pathways in the brain as genuine wins, creating a distorted perception of success and encouraging continued play.
The neurological mechanism involves the brain dopamine system. Gambling triggers dopamine release in the nucleus accumbens, the same brain region activated by cocaine and other addictive drugs. Brain imaging studies published in Nature Neuroscience in 2017 showed that people with gambling disorder have altered dopamine responses, with reduced sensitivity to wins and heightened motivation to chase losses. Over time, the brain requires more gambling to achieve the same dopamine response, creating tolerance and escalation just like substance addiction.
A longitudinal study conducted in Australia and published in Psychology of Addictive Behaviors in 2020 tracked new users of mobile betting apps and found that 18 percent developed moderate to severe gambling problems within the first twelve months of use. The strongest predictors were frequency of in-play betting, use of credit-based betting, and engagement with promotional offers. Among users who engaged in daily in-play betting, the rate of gambling disorder exceeded 40 percent within one year.
What The Lawsuits Allege They Knew
The lawsuits filed against DraftKings, FanDuel, and BetMGM allege that these companies had access to extensive research on gambling addiction and made deliberate design choices with full knowledge of the risks they were creating. The complaints cite internal data, regulatory filings, and industry research that the companies would have known about when making product decisions.
According to complaints filed in 2023 and 2024 in multiple jurisdictions, the defendants were aware of decades of research on gambling disorder and the specific features that increase addiction risk. The lawsuits allege that when these companies designed their mobile platforms, they had access to established literature showing that continuous gambling access, in-play betting, variable reinforcement schedules, and targeted promotions all significantly increase the likelihood of developing gambling disorder.
The complaints point to research from the United Kingdom, where mobile sports betting became legal several years before widespread legalization in the United States. Studies published by the UK Gambling Commission between 2016 and 2019 documented rising rates of gambling disorder correlated with mobile betting app use. A 2018 UK study found that online in-play betting was associated with problem gambling rates three times higher than traditional betting. The lawsuits allege that U.S. betting companies were aware of this data as they designed their domestic platforms and made the deliberate choice to include high-risk features.
Court filings allege that DraftKings conducted internal research on user engagement patterns and understood that a subset of users was exhibiting problematic gambling behaviors. According to the complaints, internal analytics would have shown the company which users were betting daily, chasing losses, and responding to promotional offers at rates consistent with gambling disorder. The lawsuits allege the company used this information not to protect vulnerable users but to maximize revenue from high-frequency bettors.
The complaints cite FanDuel investor presentations and regulatory filings that discuss the company financial model. According to documents referenced in the lawsuits, a relatively small percentage of users generates a disproportionate amount of revenue. The complaints allege this business model depends on cultivating and retaining heavy users, many of whom the company would have known were exhibiting signs of gambling disorder. One lawsuit filed in 2024 alleges that internal FanDuel data showed that users in the top 10 percent of betting frequency accounted for more than 60 percent of company revenue.
The lawsuits point to regulatory submissions made by BetMGM to state gaming commissions. According to the complaints, these submissions included responsible gambling plans that the company represented would protect vulnerable users. The lawsuits allege that the actual implementation of these protections was inadequate and that the company continued to market aggressively to high-risk users. Court filings cite examples of users who had set deposit limits but continued to receive promotional offers encouraging them to bet more.
Congressional testimony from 2023 is referenced in several complaints. A researcher who testified before a House committee examining sports betting regulation stated that the major betting companies had access to user data that would clearly identify problem gambling patterns, but that the companies rarely intervened until a user self-identified as having a problem. The lawsuits allege this represents a deliberate choice to prioritize revenue over user welfare.
The complaints allege that all three major defendants were aware of the Australian research on mobile betting and gambling disorder. Studies published between 2017 and 2021 by Australian universities and public health organizations documented that mobile betting apps were creating gambling disorders at rates far higher than traditional forms of gambling. A 2019 Australian study found that the median time from first bet to seeking help for gambling disorder had dropped from three years for traditional gambling to less than one year for mobile betting. The lawsuits allege the defendants had access to this research and understood the risks their platforms posed.
Court filings cite the existence of industry conferences and trade publications where gambling addiction research was discussed. The complaints allege that executives from the defendant companies attended conferences where the addictive potential of in-play betting and algorithmic targeting were openly acknowledged. The lawsuits claim the companies chose to implement these high-risk features despite the known dangers.
What The Lawsuits Say About Concealment
The complaints allege that the major sports betting companies engaged in multiple forms of concealment to downplay the addiction risks of their platforms and to prevent users from understanding the true dangers of mobile betting.
According to the lawsuits, the defendants funded responsible gambling programs that created the appearance of concern while doing little to address the actual risks of their products. The complaints allege these programs focused on user self-exclusion tools that placed the burden entirely on the user to identify their own problem and take action, rather than on the company to design less addictive products or to identify and protect vulnerable users proactively. The lawsuits characterize this as a form of concealment because it creates public relations value without meaningfully reducing harm.
Court filings allege that the companies concealed the extent to which their algorithms target vulnerable users. According to the complaints, the defendants track detailed data on user betting patterns, win-loss ratios, and response to promotions. The lawsuits allege this data would clearly identify users exhibiting problem gambling behaviors, but that the companies do not disclose to users that they are being monitored and categorized in this way. The complaints allege that users are unaware their increased promotional offers are a result of the algorithm identifying them as high-value targets, potentially because they are chasing losses.
The lawsuits allege that promotional materials and advertising campaigns concealed the addiction risk of sports betting by portraying it as entertainment and skill-based rather than as gambling. Court filings cite advertisements that emphasize strategy, research, and sports knowledge while minimizing the reality that outcomes are largely random and that the house always maintains a mathematical edge. The complaints allege this marketing creates a false sense of control that makes it easier for users to rationalize continued betting even as they incur losses.
According to court filings, the defendants concealed the speed at which mobile betting can create gambling disorder. The complaints allege that the companies were aware from international research that mobile betting creates addiction far more quickly than traditional gambling, but that they did not disclose this risk in their responsible gambling materials or in communications with regulators. The lawsuits allege users were not warned that they could develop a severe behavioral addiction within months of first downloading the app.
The complaints allege concealment through the normalization of constant betting. Court filings claim the apps are designed to make betting seem casual and ordinary through integration with sports watching, through social features that show friends betting, and through celebrity endorsements that portray betting as a normal part of sports fandom. The lawsuits allege this normalization obscures the reality that frequent betting on mobile apps creates gambling disorder at high rates.
Several complaints allege that the defendants used settlement agreements with nondisclosure provisions to conceal problems with their platforms. The lawsuits claim that when disputes arose with users over betting practices or account issues, the companies sometimes settled with confidentiality clauses that prevented public awareness of platform problems. These allegations remain to be proven in court.
The lawsuits allege that the companies concealed the extent of gambling disorder among their user base by relying on voluntary self-reporting rather than conducting systematic screening or intervention. Court filings claim the defendants had the data to identify problem gamblers through betting patterns but chose not to use that data for intervention purposes. The complaints allege this concealment allowed the companies to maintain that problem gambling rates among their users were low, when in fact they had no reliable measure because they were not looking for it.
Why Your Doctor May Not Have Told You
Gambling disorder is significantly underdiagnosed in primary care settings. Most doctors receive little to no training on behavioral addictions during medical school or residency. The focus of addiction medicine has historically been on substances, and even as behavioral addictions have gained recognition in the psychiatric literature, that knowledge has been slow to reach general practitioners.
When sports betting apps first became widely available in the United States following the 2018 Supreme Court decision in Murphy v. NCAA, the medical community had limited awareness of the specific risks posed by mobile gambling. The rapid expansion of legalized betting outpaced the dissemination of research on its health impacts. Many physicians were unaware that mobile betting creates problem gambling at rates significantly higher than traditional forms of gambling.
The lawsuits allege that the betting companies contributed to this knowledge gap by promoting a narrative that sports betting is entertainment rather than gambling, and that it is primarily skill-based. According to court filings, this framing made it less likely that healthcare providers would recognize sports betting as a significant addiction risk. When a patient mentioned they enjoyed sports betting, doctors may have heard that the same way they would hear about any other hobby, not recognizing it as a potential behavioral health crisis.
There is also the issue of stigma. Gambling disorder carries significant shame, and many people do not disclose their betting behavior to their doctor. Unlike substance use, which may produce physical symptoms that prompt medical inquiry, gambling disorder can remain hidden until the consequences become catastrophic. By the time a person seeks help, they may have lost their savings, damaged their relationships, and experienced severe psychological distress, all without their primary care physician having any awareness of what was happening.
The complaints allege that the defendant companies did not provide adequate risk information to the medical community. According to the lawsuits, as the companies aggressively marketed their apps and acquired millions of users, they did not undertake corresponding efforts to educate healthcare providers about the signs of gambling disorder or the specific risks of mobile betting. Court filings claim this omission was deliberate, allowing the companies to expand without the scrutiny that would have accompanied proper medical awareness of the risks.
Additionally, the lawsuits allege that the companies promoted responsible gambling messages that placed all responsibility on the user. These messages typically said to gamble responsibly, to set limits, to stop if it stops being fun. According to the complaints, this framing reinforced the idea that problems were the result of individual failure rather than product design, which further reduced the likelihood that doctors would recognize gambling disorder as a product-related harm requiring medical intervention.
Who Is Affected
If you have used sports betting apps and experienced problems, you are not alone. The research suggests that somewhere between 10 and 20 percent of people who use mobile betting apps develop gambling disorder within the first two years of use.
You may be affected if you downloaded a betting app in the past few years and found that your use quickly escalated. Perhaps you started betting small amounts on games involving your favorite teams. Then you started betting more frequently. Then you started betting on sports you did not follow. You found yourself checking the apps constantly, placing bets throughout the day, not just during games.
You may be affected if you have experienced financial harm. This includes draining savings, maxing out credit cards, taking out loans, borrowing from family or friends, or selling possessions to fund betting. The amounts vary, but the pattern is the same: you bet more than you could afford, you chased losses, and the financial damage accumulated faster than you thought possible.
You may be affected if betting has damaged your relationships. Perhaps you lied to your spouse or partner about how much you were betting. Perhaps you withdrew from family activities to watch games and place bets. Perhaps your mood became tied to your betting outcomes, making you irritable, angry, or depressed when you lost.
You may be affected if you have tried to stop or cut back and found that you could not. This is one of the core criteria for gambling disorder. You recognize the harm, you make a genuine decision to stop, and then you find yourself betting again within days or even hours. You delete the apps and then reinstall them. You promise yourself this will be the last bet, and it never is.
You may be affected if you have spent significant amounts of time thinking about betting even when you are not actively doing it. Planning your next bets, replaying losses in your mind, calculating what you need to win to break even. This preoccupation is a hallmark of gambling disorder and indicates that the behavior has moved beyond recreation into compulsion.
The litigation is focusing on people who developed gambling disorder after beginning to use mobile sports betting apps offered by DraftKings, FanDuel, BetMGM, or other major platforms. The timeframe is generally 2018 forward, after the Supreme Court ruling that allowed states to legalize sports betting. The progression of harm often occurred within one to two years of first downloading an app, though for some people it happened even faster.
You do not need to have lost any specific amount of money. The disorder is defined by loss of control and continued gambling despite negative consequences, not by a dollar threshold. Some people have lost hundreds of thousands of dollars. Others have lost amounts that might seem smaller but were devastating given their financial circumstances.
You do not need to have a prior history of gambling problems. In fact, many of the people affected by mobile sports betting had never gambled problematically before. They had never had issues with casinos or poker or lottery tickets. The specific design and accessibility of mobile betting apps created a new addiction in people with no prior vulnerability.
Where Things Stand
Litigation against the major sports betting companies is in its early stages but is expanding rapidly. As of early 2024, lawsuits have been filed in multiple states against DraftKings, FanDuel, and BetMGM alleging that the companies designed addictive products, failed to warn users of addiction risks, and targeted vulnerable users with promotional offers.
The legal theories in these cases include product liability, negligence, fraud, and violations of state consumer protection statutes. Plaintiffs allege that mobile betting apps are defectively designed products that create unreasonable risks of gambling disorder. The complaints argue that the companies knew or should have known of these risks based on available research and their own internal data, and that they failed to implement adequate safeguards or provide sufficient warnings.
Some cases are being pursued as individual lawsuits, while others are seeking class action status to represent larger groups of affected users. The class action complaints typically define the class as people who used the defendant apps, developed gambling disorder or suffered financial losses, and were residents of particular states during particular time periods.
No cases have yet reached trial, and no settlements have been publicly announced as of early 2024. The litigation is in the discovery phase in most jurisdictions, with plaintiffs seeking internal company documents, user data, and communications that would show what the companies knew about addiction risks and when they knew it. The defendants have filed motions to dismiss in several cases, arguing that users assumed the risk of gambling and that the companies have no legal duty to protect users from their own decisions.
Legal observers expect the litigation to follow a pattern similar to other product liability cases involving behavioral harms. Early cases will establish key facts through discovery, set important legal precedents about the scope of company duties to users, and potentially lead to bellwether trials that will shape the value and trajectory of the broader litigation. If plaintiffs can demonstrate through internal documents that the companies deliberately designed addictive products with knowledge of the harms they would cause, that would significantly strengthen the cases.
Regulatory activity is also increasing. Several state legislatures have held hearings on sports betting and gambling disorder. Some states are considering legislation to restrict certain high-risk app features such as in-play betting or algorithmic targeting. In 2023, Massachusetts implemented new regulations requiring betting companies to monitor for problem gambling indicators and to intervene with at-risk users. The effectiveness of these regulations remains to be seen.
Congressional attention has increased as well. A 2023 House subcommittee hearing examined the public health impacts of mobile sports betting, and multiple members of Congress have called for federal oversight. However, no federal legislation has advanced as of early 2024, and regulation remains primarily at the state level.
The timeline for resolution of the current litigation is uncertain. Product liability cases of this complexity typically take several years to reach trial. Discovery is likely to extend through much of 2024 and into 2025. First trials may occur in late 2025 or 2026. Settlement discussions could begin earlier if discovery produces documents that significantly strengthen the plaintiffs cases.
New cases continue to be filed as more people recognize that their gambling disorder may have been caused by product design features rather than personal failure. Attorneys representing plaintiffs report receiving inquiries from people across the country who used betting apps, lost control rapidly, suffered severe financial and personal consequences, and are now learning that their experience was not unique but rather a predictable outcome of using products designed to maximize engagement without adequate safety measures.
What happens in these cases will have implications beyond the individual plaintiffs. If the litigation establishes that betting companies have a duty to design less addictive products and to identify and protect vulnerable users, it could reshape the entire mobile gambling industry. It could lead to design changes that reduce addiction risk, to better screening and intervention systems, to more honest marketing about the risks of rapid-onset gambling disorder, and to compensation for those who have already been harmed.
You became trapped in something that was designed to trap you. The constant access, the in-play betting, the personalized promotions, the psychological manipulation of variable rewards and losses disguised as wins—none of this was accidental. The research existed. The international data was available. The companies made choices about how to design these platforms, and according to the lawsuits, those choices prioritized engagement and revenue over user safety. What happened to your finances, your relationships, your sense of self was not a personal failing. It was the predictable result of behavioral psychology applied deliberately and without adequate safeguard.
The litigation now unfolding is an attempt to establish accountability for those choices. It cannot undo the harm already done, cannot restore the money lost or repair every damaged relationship. But it can create a record of what was known and when it was known. It can establish that companies have responsibilities to the people who use their products, especially when those products can create devastating behavioral addictions. And it can provide a measure of acknowledgment that what happened to you was not your fault, but rather the result of documented design decisions made by companies that understood the risks they were creating. You were not weak. You were not uniquely vulnerable. You were a person using a product that was designed, according to the allegations in these lawsuits, to do exactly what it did to you.