Many gambling enthusiasts in the United States are at least vaguely familiar with the Indian Gaming Regulatory Act, US law Pub.L. 100–497, 25 U.S.C. § 2701.

Slots players in land-based casinos love to wait around at machines that haven’t paid out in a while. They think that a big win is about to hit. But if you’re curious about how to win on slot machines, you need to understand that all games are random. Slot software is governed by RNGs (Random Number Generators). The easiest way for normal slot players to win at slots is to play at online casinos with free money from the casino. See Arnold Snyder's How to Beat Internet Casinos and Poker Rooms. For more information on how professional gamblers beat slots, video poker, roulette, keno and a wide variety of casino games, see the Blackjack Forum Library. As the casino expanded and more slot machines were installed, the floor had to be bolstered to support the weight of the machines with a full load of coins. Shortly after this retrofit was completed, slot machines went coinless. Slot players who play to win are system players. If you’re not playing with a system, you’re not playing to win.

Passed in 1988, this federal law established how Indian (Native American) gaming would be managed and regulated. The act included definitions for 3 types or classes of gambling games. They are usually referred to as:

  1. Class I games
  2. Class II games
  3. Class III games

Congress passed the law to help Native American tribes and nations improve their economic status after more than a century of oppression and exclusion in mainstream US society. Many Native American groups wanted to build land-based casinos, which would not only attract tourists but create jobs.

There was considerable resistance to this movement in many states, most of which did not allow gambling of any kind. To help resolve the conflicts and provide some clarity between treaties, state law, and federal law, the US government established a framework that eliminated some barriers to Native American investment in gambling industries. The law also provided some regulatory limits to respect state laws.

The Indian Gaming Regulatory Act introduced some confusion into the worldwide lexicon of gambling games because the distinctions are only observed within US jurisdictions. Other nations regulate gambling with different definitions.

But as the internet became a worldwide communications network in the 1990s and 2000s, most of the content published about gambling dealt with US law and casinos. Although non-US casinos have to observe their own laws and regulations, players who research gambling law on the internet must be careful to distinguish between USA gambling definitions and other gambling definitions.

What Are the 3 Classes of Gambling Games?

Class I gambling includes all traditional Native American gambling games, most of which are only used for ceremonial purposes or in the contexts of cultural-specific celebrations and ceremonies. These games, which are only available at small stakes, are completely regulated by the Native American tribes and nations.

Class II gambling includes all variations of bingo games, player-vs-player card games like poker (where the house does not play a hand in the game), tip jars, pull-tab games, punch card games, and anything similar. Some people mistakenly include lottery games in this category, but the law clearly excludes state-run lotteries and similar games from Class II.

Class III gambling consists of everything that is not included under Class I gambling or Class II gambling. That means the lottery games you play are Class III gambling games. Slot games, roulette, dice games, and card games like blackjack where the house is also a player all fall under the Class III gambling games category.

So How Can There Be Class II Slot Machine Games?

If you’ve ever visited a Native American casino–like the Winstar Casino in Oklahoma, you’ve almost certainly played some Class II slot machine games. They look much like traditional slot machine games. They have 3 to 5reels with symbols on them, they pay jackpots, and they do everything else you expect of a slot game.

And yet, they are not slot machine games.

A clever company in Franklin, TN, known as Video Gaming Technologies, or VGT, developed electronic bingo games for Native American casinos that use the results of those bingo games to emulate slot game action.

In other words, the slot machine cabinets contain two screens, one that displays the results of the bingo game and one that displays the results of the simulated slot game. This dual visualization of the gambling game takes advantage of the fact that at the core of all gambling games is a simple principle:

You’re making a wager on an unknown outcome. What the Class II slot games do is take the result of the bingo game to determine what happens in the slot game.

What’s cool about this approach is that VGT was able to add bonus games to the bingo games that work like slot machine bonus games. They’ve developed a huge selection of bingo games that play like slot games. VGT is so successful they were acquired by Aristocrat Leisure Limited in 2014, although the former VGT still operates as an independent subsidiary company of Aristocrat.

How Do Class III Slot Machine Games Work?

Win

The key to the hybridization of bingo and slot machine games is the Random Number Generator. Mathematicians have been developing algorithms to calculate unpredictable numbers for hundreds of years. For a detailed look at the concept, read “How Do Random Number Generators Work?” on Jackpots Online. Although the RNG does not produce a truly random number, in typical circumstances the number is random enough. Even so, slot game designers use random numbers in multiple ways.

Before I continue, I should mention that US law requires slot game designers to work by different rules from other countries’ slot games. In the United Kingdom, for example, the outcome of a slot game is determined by a single random number. In the United States, the outcome of the Class III slot game is determined by several random numbers.

To begin with, an electronic slot machine or online slot game uses a software concept called an array to represent each reel. Computer arrays work like rows of boxes, where each box holds one piece of information. The arrays for slot reels may have anywhere from 22 to 256 slots. Each slot in the array holds a symbol marker that tells the slot machine game what to display on the screen.

Slot game designers use special algorithms to decide how often each type of symbol should appear in each slot array. The frequency of the symbol’s use in the array and the size of the array determine how likely or unlikely it is for any single spin of the slot game reels to create one or more winning combinations. The game’s software may award prizes for one or more winning combinations at a time, depending on how many pay lines the game offers.

The random number generator produces a new number every few milliseconds. The number is placed in a temporary memory location called a register. The slot game software grabs the latest random number from the register and uses that to determine what happens next. For example, a 5 reel slot game needs 5 random numbers to pick how many slot positions will be spun on each reel before the reels stop in new locations. If the slot game awards random prizes like progressive jackpots, these are determined by additional random numbers.

How Class II Slot Machine Games Differ from Class III Slot Machine Games

What VGT did was create bingo game software that determines the actual prizes awarded to players.

But to make the bingo games look like slot games, they used the bingo game’s random results as if they are the random numbers that Class III slot games use.

To ensure that the slot game winning combinations match the bingo game prize values the VGT games work more like slot games in the United Kingdom. The game determines what prize was won and then creates a short video simulation of the slots landing on that winning combination.

Conclusion

How do class II slot machines work?

How To Win On Indian Casino Slot Machines Machine

Either way, the slot games award prizes on a random basis. You could say that US gaming laws are paranoid in that Class III slot game software is required to closely emulate the physical spinning of slot reels. In fact, physical slot reel games have been displaying results of these virtual, in-memory array games for more than 20 years. So even when you see physical reels spinning, their stop positions have already been determined within microseconds of your pressing SPIN.

The Class II slot gaming experience is a fun gaming experience.

But the bingo game is displayed on a small screen, because VGT’s designers have found that players don’t enjoy looking at bingo patterns as much as they enjoy looking at 3 to 5 reels spinning and stopping on various symbols.

For the player, what matters is that they’re gambling for real money on an unpredictable outcome–and they can enjoy an entertaining evening with friends or loved ones.

Progressive Jackpot Slot Pros

By Arnold Snyder
(From Casino Player, August 1995)
© 1995 Arnold Snyder

Professional gamblers beat slots either by limiting their slot play to progressive jackpot slots at which the jackpot has gotten big enough to give a player advantage, or by using slot play to milk various kinds of loss rebates and free money offers, in both online and brick-and-mortar casinos. Usually professional slot players combine both methods—that is, they wait until the jackpot is close to giving a player advantage, and take advantage of casino points and comps as well.

In order to use the first method in slot games other than video poker, you have to record the results of enough spins on a slot game to determine the frequency of each type of payout and the percentage of your bet that goes into the jackpot. From this you can determine the house edge on the game. This all takes some work and a good understanding of the math involved..

Professional gamblers tend to either be good at math, or rich enough to hire someone who is. And they tend to be very dedicated about playing at casinos that give the most back for their play, through good points programs and comps.

How to Beat Slots: Tips for Recreational Players

A recreational gambler who enjoys playing slots, and expects to play slots regularly over a period of many years, would probably do better over the long term playing only progressive jackpot slots on which the jackpot was significantly larger than the average level at which it goes off.

How To Win On Indian Casino Slot Machines Jackpot

Just be aware that you can't know for sure where a player advantage starts unless you go through the process of mathematically analyzing the game. And no matter how big the jackpot gets, it doesn't guarantee that you will win the jackpot, or even that the jackpot will go off while you're in town. There are no short-term win guarantees in gambling, not even for professional gamblers.

All a player advantage means is that, if you limit your play to such situations, and you put in enough hours, you will likely make more money in the long run than you put in. But the long run can mean a very long time, and if you play only a few hours a year, you may not get in enough hours in an entire lifetime to get ahead.

So no matter how big the jackpot gets, you should play only an amount that you can afford to lose without it affecting your lifestyle.

Also, slot pros don't like to play for too small an advantage, so they'll usually wait until the jackpot is significantly bigger than the minimum level necessary to turn the advantage to the player. On the other hand, if they know they'll be getting valuable points and comps for their play, they can play for a slightly smaller jackpot and still have a player advantage overall.

Pros generally prefer to play jackpots with a smaller average jackpot size than a gigantic average jackpot size. For example, a slot with an average jackpot payoff of $3,000 or $10,000 is considered a better bet than a slot with an average jackpot payoff of $1 million, because the variance on the games with the smaller average jackpots will be a lot lower. (That means a pro will require less of a bankroll to make sure he won't go broke chasing the jackpot.)

But professional slot players typically have very large bankrolls to play on—much larger than the average Las Vegas recreational player, who may bring a few hundred dollars in mad money to Vegas to try her luck. Slot pros who find a game where the progressive jackpot gives a player advantage are generally prepared to put in whatever money and hours it takes to keep playing until the jackpot goes off. And if that player is not the person to win that jackpot, he'll stiill have plenty of bankroll left to go after the next jackpot, whenever a player advantage occurs. He won't be broke.

Again, the reason the pros need such a big bankroll is because even when you're playing a progressive jackpot slot with a decent player advantage, you can't guarantee you'll win that jackpot. All a player advantage means is that you can know you'll win over the long run if you put in enough play.

For more information on how professional gamblers beat slots, read Million Dollar Slots by Peter Liston, an accountant turned high school teacher turned professional slot player.

The Casino Perspective on Players Who Know How to Beat Slots

Question from a Player: As a semipro card counter for about two years, mostly in Las Vegas, I have finally given it up for . . . the slots! The heat and the harassment associated with card counting finally wore me down. I’ve hooked up with a pretty well-financed video poker team. The money is steady and the heat is nil. It’s boring, but you can’t have everything.

What I don’t understand is this: Why is there no heat? Some of my teammates, to be honest, are downright rude when we go in to take over a bank of slot machines. Getting rid of the “tourists” is one of my least favorite parts of this job. I’m just a “worker ant” on this team, but I’d like to start running my own slot teams in the future. My technical question is this: Is there a mathematical formula for figuring out how much each “tourist” on a bank costs you in win expectation?

Answer: In the May issue of Casino Journal, Anthony Cabot, in his “Gaming Law” column, addresses the problem of professional slot teams from the casino perspective. He compares the problems casinos have with slot pros to the problems they have with blackjack pros, and reveals why the casinos seem to have such a high tolerance level for slot teams, who are virtually never barred.

Apparently, there is a gaming regulation in Nevada that implies that casinos are holding “in trust” for “the public” any progressive slot jackpot on any game that has a progressive slot jackpot, until a member of “the public” wins that jackpot. The specific wording of this regulation makes the casinos hesitant to exclude any member of “the public” from playing their progressive slots. The casinos fear the possibility of a lawsuit from some member of that all-inclusive public for whom their slot jackpot is being held in trust.

Cabot’s article is very enlightening. Don’t think that the casinos are unaware that many slot pros are “rude” to their regular customers. The casinos are very vexed with this problem. In my opinion, if slot pros continue to chase tourists away from the machines, it’s just a matter of time until the powers that be rewrite the regulations. The casinos have an enormous amount of political clout in Nevada, especially when it comes to keeping the tourists happy.

Casino

A big part of this problem arises from two misconceptions that pervade the slot world — one slot players’ misconception, and one casino operators’ misconception.

How To Win On Indian Casino Slot Machines Win

One: Many slot pros believe that it is more advantageous to take over all slot machines on a given bank in order to “lock up” the inevitable jackpot. This is false.

Two: Many casino operators believe that they do not profit from slot pros, since the pros only play on slot machines where the players have the advantage. This is also false.

To deal with the second misconception first: The casinos profit from slot pros the same way they do from their other slot customers. The slot pros’ advantage comes solely from the jackpot that is being held “in trust.” Technically, that is not even money that belongs to the casino. It is money the casino has already “lost.” It simply has not yet been determined which player has won that money.

While a slot pro is playing, the casino continues to “rake” the pot, and takes a profit from every pro’s dollar that is played. For a standard 8-5 jacks or better progressive, any time a professional slot team takes over a bank of these machines, regardless of how many machines are on the bank, and regardless of what the jackpot is at the time of takeover, the casino will profit, on average, $2,200 on quarter slots, or $8,800 on dollar slots, directly from the slot team’s play.

When a slot team moves in on a progressive dollar bank, they are virtually “paying” the casino $8,800.00 to “buy” the jackpot (which the casino doesn’t really even “own” anymore). Since the amount of money the slot pros are willing to pay the casino to buy the jackpot is money that those savvy players would not otherwise play in the casino at all, this money is all gravy to the casinos.

This profit to the casino will definitely be diminished by the number of non-pros who are pushed out of the casino by the slot team's “rudeness.” However, if these non-pros do not leave the casino, but simply move to other slot machines or games within the casino, there is no loss to the house of any of this profit from the slot team’s play.

As for the “cost” of “tourists” to a slot team — there is none. Whether or not the slot team takes over all machines on a bank or any portion of them, they will “pay” the same amount for that jackpot — $2,200 on quarter machines, or $8,800 on the dollars.

In fact, on video poker machines it is actually more advantageous to a slot team for tourists to continue pumping the jackpot up while team members shoot for it, because the tourists will continue to increase the slot jackpot total at no cost to the team, and at the same time the pros are still favorites by a long shot to win the jackpot, because most tourists play so poorly that they are far less likely to hit the jackpot.

The real problem in many slot departments these days is a supply-and-demand problem; specifically, there is a greater demand for progressive slot machines than the casinos are supplying. The overabundant slot pros are fighting for the profitable slot jackpot opportunities that arise, aggressively squeezing the “tourists” off the banks of machines they want to play. If there were enough progressive slot banks available to keep the pros busy, the casinos would maximize their profits by courting these pros with comps!

If I owned a casino in Las Vegas, I’d advertise “All Progressives All the Time!” And I’d put in unusual video poker machines to confuse the amateurs as much as possible, so that the video poker jackpots would get pumped up as high as possible as often as possible. I’d want the pros stalking my aisles ready to jump on any bank as soon as the profit opportunity hit an acceptable level.

I’d maintain a very cordial relationship with the professional slot players, with the understanding that these pros would not offend or pressure my regular customers. If the pros understood that they paid the same amount per jackpot whether or not they monopolized a bank, and if there were enough profitable jackpots to go around, “tourists” would be welcomed by the pros to continue pumping up those already profitable jackpots to even more profitable levels.

The sad situation described by Anthony Cabot is more a result of ignorance on both sides of this battle than any other factor. The casinos are sitting on a virtual gold mine with their progressive slots. They should be “milking” the pros for the real value these players represent, not resenting a gaming regulation that the casinos perceive to be tying their hands. ♠

How

The easiest way for normal slot players to win at slots is to play at online casinos with free money from the casino. See Arnold Snyder's How to Beat Internet Casinos and Poker Rooms.
For more information on how professional gamblers beat slots, video poker, roulette, keno and a wide variety of casino games, see the Blackjack Forum Library.

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