When I was playing poker professionally, I had one constant wish: more fish at the table. Weak players, recreational gamblers, people who just wanted to have fun. Not because I was cruel — because that’s how the ecosystem works. More often than not, pros prefer to play against weaker recreational players or weaker regulars. The…

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But that raises a harder question. Prediction markets, unlike equity markets that grow alongside the economy, are a pure zero-sum game. Every dollar won is a dollar lost by someon…

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I have two accounts on prediction markets. The first one is purely degenerate. I occasionally throw money at sports, esports, and politics just for fun. There’s probably no real edge there, which is why I do it rarely.

The second account is different. I'm running a hypothesis there: small bets first, scale up if it works. A bot handles all the trades, exclusively on sports events. The logic is dead simple — so simple I suspect a lot of sports bettors are doing the same thing. I'll write about it properly once the experiment reaches a conclusion. For now, here are the interim numbers: nearly 3,000 predictions, ~1% ROI.

I also had another hunch: bets with 90%+ implied probability should carry a small structural edge, because people chasing big multipliers are on the other side. Turns out this hunch has evidence behind it.

Spoiler: the gap between the best and worst position is 64 percentage points. More on that below.

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The man who spent his whole life upholding the law started lying to his family, his clients, his colleagues.

Was he just weak? Did he stop caring?

No. He had a gambling disorder. The money that should have gone to…

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I had been playing for 30 hours straight. Slept maybe two or three hours during that whole stretch. And at some point this message popped up on screen: another player has won the Mega Jackpot with an amount of $547,543.92.

I felt this crushing exhaustion and a desperate urge to just quit. Close the chapter.…

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I waited for a positive deck and started betting 1000. The deck kept improving, but as often happens, I was losing and gradually raising my bets. I was down about 20k and the deck was getting better and better, so I decided to bet on 3 boxes at 5k each. I don’t think thi…

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But here's the thing: roughly 80% of those losses come from just 20% of players. And VIP programs, personalized hosts, and loyalty perks play a massive role in keeping it that way.

The Loyalty Pitch

Ou…

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The premise is simple: if you gamble at an offshore casino while living in a country with strict regulations (Germany, Austria, Netherlands), your losses can often be declared legally invalid and you can get your money back.

Where This Actually Works

Bad news for US players. This doesn’t work in America. The logic there is straightforward: if you played at an offshore casino, it’s on you. Courts won’t help. There are exceptions for social and sweepstakes casinos, though. In Washington state, for example, social casino players recovered $415 million.

Kentucky players alone account for around $14.2 million in sweepstakes casino settlements. But these are one-off situations under special legal frameworks.

Europe is different. And that’s where opportunities open up that some people don’t hesitate to exploit again and again.

The Perfect Plan

Play at an offshore casino for serious money.

If you win, cash out and move to the next casino.

If you lose, recover your money through court and move to the next casino anyway.

The amount doesn’t matter. Could be $1,000, $10,000, or $100,000. There’s no upper limit. That’s what opens up some truly unusual possibilities.

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The core question is simple: when a casino offers you a $100 bonus, what’s it actually worth? The answer turns out to be surprisingly complex—and deliberately so.

1. Introduction

Financial incentives a…

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I played there for about five years. Hit Divine Fortune jackpots multiple times, Mercy of the Gods, grabbed bonuses and cashback. From day one I was in profit, never had issues with withdrawals.

Then they decided I’d won too much. The way they handled it was a masterclass in incompetence.

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Big Brother Is Watching From Day One

…

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It’s a simple map of the whole blog. You can think of it in three big sections:

1. Must Read. The foundation everyone should know first: how to improve your odds, how RNG and slots actually work, where bonuses can have +EV, how to understand volatility, what the real max win odds look like, and a high level view of how the industry operates. Everything in Must Read is always free.

2. Advantage Play. The math and the real-world edge. This includes my personal case studies: tournaments, jackpots, bonuses, and more.

3. How the Industry Works. A look at the gambling ecosystem itself: information asymmetry, regulation, manipulative design, and deeper topics that go beyond Must Read.

From now on, I’ll keep this page updated as new posts come out, so it stays the best entry point and a clean table of contents.

It’s also a great excuse to catch up on posts you might have missed.

Worth bookmarking. Start here: How to read Casinos Hate Winners

For quick updates and short takes, check Notes.

But the wager was calculated in a clever way. Slots with 4% house edge gave twice as many points as slots with 2% house edge. The math worked like this: for every dollar lost, you got 50 points. Not actual dollars lost, but expected dollars lost. In other words, it wasn’t about who wagered the most—it was about who was willing to lose the most.

I don’t usually look at these tournaments as +EV opportunities. The competition is typically too fierce relative to the prize. Like first place spends $1M to win $100k. But this one had a ton of side tournaments.

Throughout the month, there were weekly tournaments with prize pools from $500k to $1M. Daily tournaments from $50k to $100k. Some days had hourly tournaments. You could rack up points that counted toward four tournaments simultaneously: hourly, daily, weekly, and monthly. Meaning you play once, and your points count across all four tournaments at the same time.

There was too much money in play for this not to be profitable. This was the third tournament in the series; the previous two had $1M prize pools each. Winning on the down-low while nobody knew about it was no longer possible. But as you can tell from the title, it was profitable to play.

Why This Was Profitable

The sum of all first-place prizes was $4,625,000. Even if you lost $3M to win $2.5M, you’d still be up thanks to the side prizes. I was confident the winner would finish in profit, but I didn’t play myself.

Risking that kind of money at a new casino is a questionable idea. There’s always the risk of payout issues. Plus I was worried about shill players or several big high rollers destroying all expectations.

But you don’t have to win the tournament to finish in profit. Even though first place gets 50% of the prize pool in all tournaments, there were still winning strategies with minimal risk.

Before we look at optimal strategies, let’s start with how it all ended.

Tournament Results

The winner, signature, took first place and netted +$490k. He skipped some days, didn’t always claim first places, and sometimes won by too large a margin. If he’d spent more efficiently, he could have made another +$195k.

The second-place player lost $1.7M. Of that, $600k was spent on the last day trying to overtake the leader.

Out of all tournament participants, only two finished in profit: first and tenth place. Everyone else lost. In total, the tournament earned the organizers $3.4M.

The Dollar Auction on the Final Day

On the last day of the tournament, a classic dollar auction played out. Player wpgg, who was in second, spent $600k trying to overtake the leader. Winner signature responded by also spending $600k to defend first place.

In the end, nothing changed. Each player lost an extra $600k!

t might seem like this was rational for wpgg. Spending $600k for a shot at an additional $1.75M (the difference between first and second place) sounds like a deal. But it's a trap.

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By January 2018, after two of the most intense years of play, I thought it was all about to end. Conditions kept changing: getting banned here, rules beco…

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Let’s map out who these power brokers are, what roles they play, and how the system perpetuates itself.

The Power Structure

Landowners and ranch barons

The landowners are today's casinos and betting operators. They control the territory and set the rules. The entire system is on their side: the sheriff, the courts, the newspapers, the telegraph, and everyone else.

Their ultimate goal is all of the prospectors' money. Information asymmetry makes this easy. The prospector takes the risk. The landowner monetizes it. The target is not a single player, but a continuous flow.

How do they achieve this? Through two core mechanisms.

Saloon

The casino interface is the saloon. It is the place where prospectors' money disappears. The saloon is engineered down to the smallest detail. Every button and every design element is built to manipulate behavior1 and maximize profit. The sheriff’s requirements are followed only formally2.

Gold Mine

The gold mine is jackpots, max wins, and bonuses that attract players. The landowners’ job is to keep prospectors ignorant about the real odds and risks3. Winning probabilities are secret. The true value of bonuses cannot be calculated. House edge is replaced with a manipulative metric called RTP, return to player.

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Workers and prospectors

These are ordinary players who hope to make money, or at least get back what they spent. They are the fuel of the system.

The most valuable fuel of all, the one that feeds most of the system4, is saloon debtors: problem gamblers. The entire system is stacked against them. Newspapers, the telegraph, saloons, touts, minstrels, street performers, bartenders — all of them live off the money of workers and prospectors. Any gambling advertising is inherently misleading to players.5 The structure itself makes harm inevitable.

The sheriff is powerless. He can only try to minimize the harm. But the prospectors need tools. That's where the next players come in.

Pickaxes and shovels

The sellers of pickaxes and shovels are game manufacturers, the providers. They cannot exist without the landowners and the mines, just as casinos cannot exist without games.

Pickaxes and shovels are engineered to maximize addictiveness. They rely on mechanics such as losses disguised as wins: a €1 bet returns €0.40, yet the game delivers winning sounds and triumphant visual effects.

Another core mechanism is the near miss. In some jurisdictions, the sheriff has banned deliberately programmed near misses. In response, manufacturers use near misses by design. For example, two jackpot symbols appear, while the third stops one position above. The brain interprets this outcome as “almost made it.”.

Fake animations add another layer of manipulation. They create an illusion of randomness even though the outcome has already been determined by the game’s logic.

Finally, there is multiline play and frequent small reinforcements. Players tend to prefer multi line games, and certain features make the experience feel more rewarding and more absorbing, even when the expected value remains exactly the same.

Touts

But tools alone don’t bring prospectors to town. Someone has to tell them where the gold is.

Affiliates are one of the most powerful forces in the ecosystem. They do not own saloons and they do not produce games. They have no mines. But they control the narrative.

They have not just captured Google search results. They have flooded the entire internet. Articles disguised as journalism are written by marketers and neural networks. In this endless stream of informational noise, players never encounter academic research or genuinely useful information.

The more a player loses, the more an “independent review site” earns. This structural conflict has not gone unnoticed. The Danish government has proposed legislation banning affiliates from operating under commission models based on player losses or turnover.

Newspapers

Beyond affiliates, mass media plays its own role in the ecosystem.

In newspapers, advertising for mines and saloons is formally banned. Another symbolic victory for the sheriff. In reality, social media platforms earn billions from gambling advertising.

Formally, these platforms claim to fight illegal advertising. In practice, they create the appearance of enforcement. Illegal gambling ads generate around 10% of revenue, while only about 0.15% of revenue is spent on combating them6.

Street performers and minstrels

If traditional advertising is restricted, modern entertainment picks up the slack.

Streamers and influencers provide a constant inflow of prospectors. Their audience is young, and the streaming format normalizes gambling, creates the illusion of easy wins, and funnels users toward weakly regulated platforms.

Regular exposure to slot streams is associated with more positive attitudes toward gambling and a higher likelihood of transitioning to real money play. Slot streaming functions as a mechanism of engagement and normalization of gambling behavior, especially among young and vulnerable users, even without explicit advertising messages.

The economics are simple: street performers and minstrels do not risk their own money, unlike the prospectors they attract. They showcase large wins, creating a distorted picture of the odds.

As with touts, their income is directly proportional to player losses. They bear no responsibility and face no accountability. Street performers and minstrels earn money without committing their own capital and without bearing risk.

The sheriff

So where is law enforcement in all this?

Sheriffs exist. They are the regulators. Their job is not justice, but manageability. They make sure there are self exclusion buttons and responsible gambling reports. Their hands are tied, and their requirements are met only formally.

They never touch the foundation: information asymmetry, manipulative design, addictive game mechanics, and financial incentives.

The sheriff’s power varies by territory. In some districts the sheriff has more authority, in others less. There are rare exceptions where the sheriff has extensive powers and strong political backing. In those cases, all participants in the system move to uncontrolled territories where the sheriff has no influence at all. This is the offshore market, and it is vast. In Europe, for example, it accounts for around 71% of a €114.3 billion market (approximately $134.13 billion).

In these places, conditions for the prospector are even worse. Even if gold is found, taking it away is far more difficult. Advertising is more aggressive. There are no courts and no protection. The sheriff is powerless here as well.

Bankers

Money has to flow somehow. That’s where the financial infrastructure comes in.

Payment systems run the financial infrastructure. The most common method is credit and debit cards7, with some regional exceptions. In territories beyond the sheriff’s reach, decentralized payment systems are more popular8, primarily cryptocurrencies.

But centralized payment methods also operate in these areas, carefully structured so the sheriff does not notice. This includes cards issued by exotic banks and miscoding - routing transactions through categories like “professional services.”

Visa and Mastercard are understood to profit from these arrangements, earning a small fee on every transaction.

Bankers care about reputation, but the revenue is too attractive to walk away from.

These are the main power brokers. But the ecosystem extends far beyond them.

The rest of the system

Fake towns

Boomtowns emerged around a gold strike, a railroad, or even a rumor. They were built in weeks, disappeared in months, and often had no real economy.

The fake towns of today are white label casinos. A ready made infrastructure: mines, saloons, bankers, pickaxe sellers, all formally under the sheriff’s authority. They are especially common in offshore jurisdictions.9

They are popular because entry is fast and cheap. The entire setup is handled by town or land companies. The owners focus only on traffic acquisition. These towns open quickly, shut down quickly, and reopen under new names.

Some fake towns eventually become real10. Most are doomed from the start.

Town and land companies

These companies planned towns turnkey before any residents arrived. They built cities with a minimal set of functions, and if the project failed, they abandoned it and started a new one.

In online gambling, these are platform aggregators.

• They build the town: the engine and the site design.

• They appoint the sheriff: obtain a license.

• They negotiate with game providers and payment processors.

• They take a commission from player losses.

• They may provide customer support and risk management.

The largest aggregators have enormous resources and traffic, giving them the ability to influence pickaxe sellers, the towns they build, and potentially even the sheriff himself.

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Telegraph

Beyond physical infrastructure, there’s an invisible layer: information systems.

Analytics, tracking, algorithms, antifraud systems, and risk models are the telegraph of the Wild West. Information moves faster than the prospectors.

By the time a player makes a deposit, the system already knows their IP address, device fingerprint, behavioral patterns, how much they lost last time, the real odds, risks, and probabilities.

The telegraph works for the landowner. The casino knows almost everything about the player. The player knows almost nothing.

Surveyors and inspectors

Even in the Wild West, there were people claiming to ensure fairness. Auditors and independent testing laboratories verify that games are fair. They certify software and test RNGs.

The problem is that they are hired by casinos, not by players. Like the sheriff, they do not examine the foundations: information asymmetry, manipulative design, addictive game mechanics, and financial incentives.

Most auditors are professionally honest. But the conflict of interest is structural. They check whether declared boundaries match reality. Whether the map itself is fair is outside their mandate.

Hired guns

Risk, fraud, AML, and KYC teams are the Pinkertons, the baron’s private police. Their job is not primarily to catch thieves, though that happens too. Their real task is to protect house edge.

They go after fraudsters, carders, multi account users, and advantage players. Sometimes ordinary players get caught in the crossfire. The operating principle is simple: shoot first, sort it out later.

Smugglers

But not all actors pretend to be legitimate. This is the entire PPC traffic promoting offshore gambling. Millions of fake accounts and disposable mobile apps. They funnel prohibited traffic while platforms create the appearance of enforcement and earn billions from it.

Bandits

The creators of fake apps copy the design of popular products but operate as outright scams. They accept deposits and refuse to pay out winnings. They also run advertising on Google Ads, Facebook Ads, and TikTok using fake accounts.

Snake oil merchants

Promises of fast or easy money. “Unique systems.” Martingale, Fibonacci, d’Alembert, tipsters. Strategies that cannot work by definition because of the house edge.

Affiliates benefit when players gamble more, which is why some of them are openly predatory and deliberately misleading.

Judges

ADR, alternative dispute resolution bodies, handle player complaints and reviews. Formally, they are independent. In practice, some are funded by casinos, others earn money from player losses, and others manipulate reviews.

The conflict of interest is structural, except in cases where player protection is the sole source of funding.

Street children

Some participants in this system had no choice about being there. Underage players and teenagers. They slip into saloons. Saloons have an incentive not to notice future customers.

According to a UK Gambling Commission study from 2023, 26% of children aged 11–17 spent money on gambling. If legally permitted youth activities such as arcade machines (penny pushers and claw grabs) are excluded, around 4% spent money on regulated forms of gambling. More than half of them had been exposed to gambling advertising.

Bartenders

Customer support and VIP managers. They are friendly, helpful, and create the illusion of care.

They are often trained in retention techniques and communicate using predefined scripts. Some support agents genuinely empathize with players. But their KPIs are retention and reactivation. If a player leaves, the manager loses their bonus.

The system rewards care for profit, not for the person.

Enemies of the system

Not everyone serves the barons. Some players reject their assigned roles entirely.

Cowboy

The Hollywood image of the cowboy, unlike the real one, became a symbol of freedom and individualism. In this system, cowboys are advantage players.

They understand how the system works and exploit its weaknesses for profit. They do not break the law, but they break the economics. That is why they are pushed out, through legal and extralegal means.

For the system, they are worse than fraudsters. A fraudster can be caught and punished under the law. An advantage player can only be banned and, if possible, declared illegitimate.

This is why, despite the absence of any wrongdoing, they are treated as criminals. Their profiles sit in databases. Their methods are studied. Hired guns are sent after them.

Preachers and reformers

Then there are those who fight the system itself.

Independent researchers, academics, journalists, and anti gambling activists. They fight information asymmetry, advertising, and manipulation.

They publish research on how slot machines are designed to maximize time on device and how opaque these systems are. They produce hundreds of papers on harm, addiction, and advertising. They document victim stories. They lobby for restrictions and bans.

They are not heard. The mass audience often does not even know they exist. Their content loses by design. A forty page academic paper versus a bright streamer video. Their work does not surface in Google search. Charts and tables versus ads promising big wins.

At times, attempts are made to influence them11. Sometimes they are blown up in their cars or killed by a bullet while walking along a beach.

Conclusion

The entire system exists at the expense of the prospector. It is a single pie, divided in different proportions.

• Payment systems, deposits and cashouts, take a small percentage, roughly from 1% to 7%, from every transaction, regardless of outcome and regardless of laws or regulation.

• Game providers create addictive and opaque products, hide real odds and probabilities, and earn from player losses, roughly in the range of 5% to 15%.

• Platforms, the ones that create hundreds or thousands of white label casinos, earn directly from player losses, approximately 10% to 15%.

• Affiliates, influencers, and streamers advertise wins and normalize gambling. They earn from player losses, sometimes up to 50%. This can come from payments per deposit, hybrid deals, or sponsorship contracts.

• The state earns through taxation, typically from 1% to 25%.

• Advertising platforms earn from impressions, clicks, and installs, regardless of player outcomes.

• The casino takes whatever remains after all other participants and operating costs. It profits from losses and uses every available legal and illegal method, including manipulative techniques, to increase those losses.

Everyone takes their cut. But the distribution of power is not equal. The final question within this metaphor is simple.

Who holds the greatest wealth and power?

In the real Wild West, railroad companies decided the fate of towns. They did not own saloons or gold mines, but they controlled access. A town bypassed by the tracks died within three years.

In gambling, power and influence are distributed across many actors. But the greatest benefit with the least risk, in my view, belongs to payment systems and advertising platforms, which bear virtually no risk themselves and are critically essential to the system’s survival.

The railroad does not own the saloons. It owns access. And while the prospector believes the next shovel will bring gold, the train keeps moving along tracks that were never laid for him.

In the Wild West, you could burn down a saloon. You could shoot the baron. You could drive out the sheriff. But you could not stop the railroad. You could not kill hope.

The railroad decided where cities would exist. Hope decided who would come to them. As long as both exist, the system is unbeatable.

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The math is on your side. Almost.

Starting January 19, 2025, UK wagering requirements can’t exceed 10x the bonus amount.

With wagering this low, it doesn’t matter which slot you play or how you bet. The bonus is profitable long term. The math works in your favor. Positive expected value. Sounds great for both advantage players and recreational gamblers, right?

But the devil’s in the details. There’s one trick that turns a profitable bonus into a losing proposition, and operators are using it more and more. Maximum win limits.

What are win caps? Win caps are applied when playing with bonuses. This is a bonus restriction, similar to ‘30x wagering on bonus plus deposit’ or ‘maximum bet £5’. The idea is simple: you cannot win more than a predefined amount. For example, you deposit £100 and receive a £100 bonus. If the win cap is £300, after completing the wagering requirements you cannot withdraw more than that amount. Even if you win £1,000, your payout gets capped at £300.

What’s Changing and Why It Matters

The UK Gambling Commission (UKGC) is updating LCCP Social Responsibility Code 5.1.1. Maximum wagering is now 10x the bonus amount.

Right now you’ll see 30x on “deposit + bonus,” which equals 60x on just the bonus. After January 19th, it’s capped at 10x. That’s a 6x reduction in wagering.

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The new rules also ban manipulation. Casinos used to advertise “10x wagering” but then add different contribution rates for different games. Roulette counts 10%, some slots 50%. This loophole let them push the effective wagering back up to 50x. That’s now illegal.

But here’s the problem. The law doesn’t regulate win caps. UKGC requires that material terms (including wagering) be clear, prominent, and displayed alongside the main offer on all promo pages. Material terms include time limits, maximum bet size, and playthrough requirements. Win caps aren’t on that list.

So players will clear wagering requirements more often. But their winnings can get slashed. Win £4,000, receive £300. These bonuses can have negative value if you play the wrong games at the wrong stakes, even with low wagering.

How Did This Happen?

Before introducing the law, UKGC commissioned research from the Behavioural Insights Team on whether to lower wagering requirements. They also studied how well players understand wagering.

The research showed that:

• Players consistently get it wrong. They overestimate their chances with high wagering (think 15%, reality 2%), and underestimate with low wagering (think 30%, could actually be 60%).

• Wagering level doesn’t affect the decision to play. Same percentage played at 1x and 30x, despite the huge difference in generosity.

BIT recommended banning “bonus + deposit” language and limiting wagering to 1x. Their research didn’t account for win caps, which make the true value of a bonus even harder to understand1. So the terms will be clearer, but not better when win caps are involved.

Optimal Strategy Without Win Caps

Without win caps, there are two opposing strategies.

Strategy A: Maximum EV (Aggressive)

• High volatility

• Maximum bet size

• Goal: hit a big win

• Risk: you win big 1 out of 6 times

Example: Fruit Party slot, SD 23.22, £5 stake.

Result: EV £82.462, 16.63% chance to clear, average win £1,097.11

Strategy B: Steady Profit (Conservative)

• Low volatility

• Minimum bet size

• Goal: guaranteed small profit

• Risk: you win smaller amounts consistently

Example: Chicken Chase, £0.10 stake, SD 4.24:

Result: EV £64.82, 100% chance to clear, average win £164.82

That’s almost an 18% difference, and the gap widens with higher wagering.

You’re choosing between higher long-term profit with more bankroll risk (but less casino suspicion) versus guaranteed smaller profit with higher risk of getting flagged.

The first approach works for experienced players with stable bankrolls targeting lots of bonuses. The second is better for new players or those claiming fewer bonuses.

Optimal Strategy With Win Caps

When there’s a maximum win limit, the aggressive strategy stops working. Big wins get capped. Win £5,000, still receive £300. The conservative strategy still works with low wagering.

At higher wagering requirements, both strategies become unprofitable!

Now let’s compare the optimal strategy with win caps at 1x and 3x the bonus.

Now we see that the minimum volatility, minimum stake strategy is the only one that works. But even this strategy fails when the max win drops to 1x the bonus. This makes sense even without calculations. At 1x, the max win equals your deposit. If you deposit £100 and can only win £100, you obviously can’t profit. Best case, you break even.

Sometimes the max win isn’t tied to the bonus amount but fixed at a specific sum, like £200. In that case, you might think it’s better not to take the maximum possible bonus and reduce your deposit instead.

The best EV is still with the maximum deposit. This is because the average win of £160 doesn’t hit the £200 cap.

But if there’s a minimum bet requirement for the game, everything changes.

Playing at the minimum £0.10 bet, EV increases with deposit size. But for £1 and £5 bets, there’s an inflection point where larger deposits actually decrease bonus value.

What To Do In Practice

• Look for bonuses without max win restrictions. Any way you play will have positive expected value (+EV).

• Bonuses with win caps3 need to be played with minimum volatility at minimum stake.4

• Avoid bonuses with 1x win caps. This is the worst possible scenario.

  ---

Win Caps Now Matter More Than Wagering

The new UKGC law is huge progress. 10x wagering instead of 60x really helps players, but not always. Win caps are a legal loophole operators are already exploiting, and I expect they’ll use it even more after the new rules kick in.

After December 19th, a bonus with 10x wagering and 1x win cap will be worse than the old 60x wagering bonus with no win limit.

The Behavioural Insights Team report didn’t investigate this maneuver, so I sent them my calculations and clarifications. Think they’ll respond? Drop a comment with your thoughts. While the rules are already adopted, maybe they’ll adjust them in the future and ban win restrictions.

Until then, read the terms carefully and understand your real odds. Good luck out there!

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Sounds absurd? Yet this is exactly how modern online gambling works.

Introduction

It’s always struck me as unfair that you can’t find out the …

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Level 1. The Basics

At the most fundamental level you need to understand three things:

• how the random number generator works

• how a slot is built

• and how RTP is calculated

This alone will help you get rid of countless myths about rigged results, cycles, pools, hot and cold machines and similar nonsense. I wrote about this in detail here and here.

You also need a clear understanding of responsible gambling. Never risk more than you can afford to lose, set limits before you start, and never chase losses.

If your plan was to play for one hundred dollars before bed, and you ended up losing several thousand while trying to recover and even missed work, that is a serious warning sign. Even if you planned to lose one hundred and ended up losing two hundred, it is still a red flag. This is an important point that deserves attention.

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Casinos use manipulative design at every step. Every button on the website and every near miss animation in a slot is created to keep you playing for as long as possible. I wrote about this in my article on education and legal manipulation.

Level 2. Risk and Probability

The next step is understanding volatility1. It affects your risk, your chance to be ahead or behind, and the probability of hitting max wins and large multipliers such as x1000, x5000 and more. I wrote two long posts about this, one about max wins and one about volatility.

You also need a few basic ideas from probability theory. For example, past events do not influence future outcomes. Or the fact that if a bonus round appears on average once in 180 spins, it does not mean that you will get one every 180 spins. The chance that you will not get a bonus even once in 180 spins is 36.8%.

Many articles tell you to try demo play before real play, but it’s useless. A couple hundred spins tell you nothing. To understand volatility, you need simulators that can run tens of thousands of spins.

For example, if you take a balance of two hundred dollars and make ten thousand one dollar bets on red in roulette, your chance to finish in profit is almost zero. If you make ten thousand one dollar bets on a single number, your chances to finish in profit are higher and the profit can be significant. Compare the two images below.

Slots are even harder. Even low volatility slots are as risky as betting on a single number in roulette if you have a two hundred dollar balance. It is almost impossible to understand this without simulators or massive experience.

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Level 3. Advantage Play (+EV)

Now you can start improving your odds, including creating positive expected value situations using deposit bonuses, cashback, tournaments, progressive jackpots, comp points and other promotions.

Avoid playing without extra value and avoid high house edge games. If you still want to play a slot for fun, choose Book of 99 with 99% RTP or Mega Joker which has a base RTP of 96 without the progressive jackpot and an additional RTP that depends on the jackpot size. On average it is about 99 percent, and if you choose higher jackpot values, like above 15-20k, the average RTP goes above 100%.

Always try to get at least something for every deposit. A bonus or at least free spins. Some offshore casinos give three to five percent on every crypto deposit.It’s solid—definitely better than nothing. If there is cashback, play aggressively and avoid large wagering volume so you can increase your EV by recovering losing sessions.

Example. How I extract EV right now

While I am writing this, the following is happening in parallel. I received an offer for a 100 percent bonus up to 300 dollars with a wager of 20 times the bonus amount. This casino also gives 3 percent for crypto deposits, but every deposit must be wagered at least three times.

To maximize EV from the bonus I need to play max bet in a volatile slot. I wrote about this in detail in my article about squeezing bonuses. But in this offer my maximum win is capped at x15 the bonus, so the max payout is 4500$.

The wager is small. Even wagering with minimum bets in a slot with 97% RTP will cost me 6000$ multiplied by 0.03 which equals 180$. This is one of the rare cases where the formula works. In the linked article I wrote why it usually does not work.

EV calculation:

• Loss from wagering: 180

• Bonus: 300

• Total EV: 120

Wager completion chance: close to 100 percent.

If there was no win cap the EV would be much higher with five dollar spins. For example in The Dog House the EV would be 208$ but the chance to complete the wager would fall to 19 percent.

So I deposit 2000$ to get another 60 dollars from the 3 percent crypto offer. I deposit exactly 2000$ so that I can complete both the bonus and the deposit wagering at the same time: 300 times 20 equals 6000 and 2000 times 3 equals 6000.

My EV increases by 60$, so now it is 180$.

But there is more.

The site is running a tournament where points are awarded for total multipliers on any bet of at least 20 cents. Only about fifteen slots qualify which means the number of participants will be limited.

The prize pool is 7000. First place is 1000, tenth is 100, fortieth is 30, and the last hundredth place is 5 euros. So to complete the wager I select a slot that is included in the tournament and has higher RTP. In my case it is Pragmatic Gold Party with 96.51 RTP.

While I was wagering the bonus and doing the 6000 turnover I reached 19 place and won 55 euros or 63 dollars.

Final EV: 120 from the bonus plus 60 from crypto plus 63 from the tournament equals 2 dollars.

This example does not include happy hours with double comp points which also add some value. And there is more. While I play a Pragmatic slot I also participate in the Pragmatic tournament and the random prize drops. I did not win anything this time but obviously there was some additional EV.

By the way, when you play slots from this provider you collect a puzzle of three pieces. The first two pieces appear quickly. I have never collected the third piece. A classic near miss manipulation.

In the end the deposit is squeezed for maximum value except for the enjoyment of the game. Advantage play and entertainment are two very different things. I hope the casino management does not read this.

You can also read more examples of advantage play:

• Playing with an Edge in Casino Tournaments part1 part 2 part 3

• What Happens When You Play Through 7,500 Bonuses?

• Playing roulette with 106% RTP

• How we won progressive jackpots

• How to Tell When a Jackpot Is About to Hit

Feel free to ask questions in the comments. If this post gets twenty likes I will publish the breakdown of the five million tournament with massive positive EV.

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Card counting in blackjack is the textbook example of advantage play. Movies have been made about it including 21 and Breaking Vegas. Dozens of books have been written. The field has its own heroes and legends. The MIT Blackjack Team took millions off casinos in the 1990s. Ken Uston went to court and won the right to count cards. Edward Thorp proved in 1962 that it works and he did it with real money. Training schools exist to this day and some professionals still believe the skill is relevant.

When people talk about card counting they almost always mean offline play. Online blackjack is dismissed as pointless and unprofitable. I hear this constantly from AP players in private conversations and on forums and Reddit. Even Richard Munchkin, a legend of advantage play, calls online blackjack a waste of time. Colin Jones, founder of a major blackjack school, has a dedicated video on his YouTube channel explaining in detail why online counting does not work.

Ironically I spent a non trivial amount of time and effort counting cards online. I did not walk away with a million but my total profit ended up in six figures. I do not regret a single hour spent on it. If something makes money and you enjoy the process I do not see how it can be a waste of time.

The real question is different. Offline blackjack could have made me more money in the same number of hours. But there are nuances people rarely mention or do not know when they make broad statements about online card counting.

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Introduction

Every casino makes money through its mathematical edge. In roulette, the house keeps 2.7% of every bet; in blackjack, around 0.5%; and in slots, anywhere from 1% to 10%. Given enough spins, the house edge does its job.

But what if a game had zero edge? What if the casino and the player were truly on equal footing, with no built-in advantage? It sounds crazy, but it might be the next big thing.

The crypto casino declaring war on the industry itself.

Duel casino positions itself as the first casino that cares, offering games with a house edge as low as zero.

For all other games, Duel redistributes half of its profits back to players through rakeback. A slot with 96% RTP effectively becomes a 98% RTP game. These conditions are either going to reshape the entire market — or bankrupt the project.

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