How Do Slot Machines Work

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  1. How Do Slot Machines Work In Casinos
  2. How Do Slot Machines Work In Indian Casinos Near Me
  3. How Do Bingo Slot Machines Work
  4. How Do Slot Machines Work Wikipedia
  5. How Do Slot Machines Work In Indian Casinos

A slot machine simply takes a dollar and gives 80-98 cents back (it's rare to find a slot machine with a payback of over 98%).

But, of course, it does this in the long run.

Slot Machine Paylines The number of pay lines available in a game is among the most important features of any slot machine. A payline, in simple terms, is the line on which a payout will be awarded based on winning combinations. There are X amount of paylines in any given slot, whether that number be 1 or 100. Slot Machine malfunctions. How and why slot machines screw up, causing players to think they've won the jackpot when they really haven't. Slot Machine Simulator. I programmed an exact replica of the Blazing 7s slot (odds-wise). There is no such thing as a ‘loose’ or ‘tight’ slot machine. In modern casinos, slot machines are programmed to deliver a precise return percentage, somewhere around 95 per cent. That means 95 per cent of the money that goes into a slot machine is paid back out to the players and the casino keeps the rest. All casino games, including slots, offered by licensed online casinos, also work on the same principle as class 3 slot machines. When it comes to class II slot machines, these can be mostly found on Indian gaming reservations and illegal gambling establishments as well as unlicensed online casinos, where state regulations don't apply.

Since playing slot machines seems insane on paper, what makes slot players spend so much money on these machines that are often referred to as one-armed bandits?

That'll be all the psychological factors.

Slot Machines and Psychology

A machine that just takes money and does nothing else would unlikely succeed, so the way slot machines have worked around that hurdle is offering a theoretical chance to win money, even if you lose money on the machine in the long run.

And that chance makes people play the machines. First of all, who wouldn't want to win a lot of money for basically doing nothing? That's appealing even if the odds were against you.

Additionally, people rarely realize just how much of a house edge slot machines have, and how much better it would be to play games like blackjack with optimal strategy.

Usually, the bigger the jackpot, the more players are willing to play the machine. After all, what's $50 spent on a machine that may give you a life-changing sum of money? (Co-incidentally, progressive jackpot slots, the ones that have more than a million dollars in jackpot prizes, give you the worst winning odds.)

Our desire to win big-time allows slot machines to play another psychological trick on us: the near-miss situations, which happen because slot machine reels are weighted differently (more about that lower on this page). It encourages us to keep on playing since we 'came so close' to winning life-changing money.

At live casinos, the most popular slot machines are often placed in the places where most people can see them. This takes an advantage of a psychological tendency called Social Proof (or as I like to call it, 'monkey see, monkey do'). Some say that casinos even place the machines with the highest hit frequency to where everyone can see them - I find this believable, but I have no proof.

Seeing lots of others play and win is one heck of a psychological trick. The sound of winning that a slot machine makes is affiliated deep in our mind with something positive, as is the sound of coins clinging and clanging against the metal disposer of the machine (the sound of money!). It's easy to see why someone walking in to space like that would be hooked.

So I thought it would be important to understand how slot machines work from a psychological point-of-view first - since psychological factors are what make us play slot machines - and now that you understand the basics of slot machine psychology, let's move on to the technical aspects.

Random Numbers and Paytables

When someone believes in a slot machine's hot and cold streaks, it's called Gambler's Fallacy, and for a good reason. 'Hot' streaks happen, 'cold' streaks happen in the sense that sometimes, when numbers are chosen randomly, they happen to be of similar sort for X times in a row.

It's like receiving pocket aces twice in a row at poker - it's unlikely (in fact, there's a X% chance it happens) but it does happen sometimes. Does that mean the deck of cards is 'hot'? Or when you flip a coin and you get heads five times in a row, is the coin 'hot'?

Of course not. When things happen at random, they do. They're unpredictable. Anything can happen, and at some point probably will happen.

But the point is, you have no way of knowing what the future holds for a slot machine. Every spin of the reels is an independent trial, which means the previous game has no influence on the next game. Everything starts over and the chances of winning are the same with each spin of the reels, regardless of whether someone's lost ten spins in a row or just hit a jackpot.

Why would anyone design slot machines that get 'hot' or 'cold' anyway? If they did, players could tell when to play and when not to play. It makes no sense. Casinos are much better off creating slot machines to which there are no 'winning systems' available.

Machines

So slot machines use a random number generator (from now on referred to as 'RNG') to, well, generate random numbers for each reel. These numbers are between one and a couple of billions (let's just say a lot of numbers).

And there's a symbol assigned to each number - for example, if the RNG would pick numbers between one and a billion, the game had ten symbols and each were as likely to come, there would be a 100 million numbers assigned to each of the symbols.

But lot machine symbols are never equally likely to come; the ones that pay the most are the hardest to get. Therefore different symbols have a different amount of numbers assigned to them. (The odds of winning the Megabucks jackpot are somewhere in the one out of 50,000,000.)

But the point is, the RNG assigns numbers to each reel and those numbers correspond with symbols that have been assigned to them. The RNG is not influenced by previous results; it deals a new, random set of numbers with every spin, regardless of what's happened.

Interestingly, the moment you press Spin or pull the lever, your fate has already been sealed. Spinning reels stopping one by one is just theatrics; they make the game more exciting and enjoyable.

Now, the slot machine must also know which symbol combinations are winners and how much they pay. For this, slot machines use EPROM chips. They tell the slot machine winning combinations and define the paytable.

How Do Slot Machines Work

When a casino wants to change the payback of a machine, they change the EPROM chip (or the settings of the chip). Not long ago casinos had to physically change the chip which was quite a bit of work, but now many casinos can change the settings of the chip externally.

There are rules, though. In Nevada, for example, casinos aren't allowed to change the settings four minutes before and after someone has played; this eliminates the myth that casinos change the settings while you're playing.

So either someone physically changes the chip or there has to be a four minute time window before and after someone's played. (While the settings are being changed, the slot machine screen should have a message stating that some sort of 'configuration' is happening.)

That's pretty much it. There are a lot of psychologal tricks involved, but technically the RNG assigns random numbers to each reel and the EPROM chip determines the winning combinations and paytables, which together determine the payback (or 'return') of the machine. The less it pays back, the more you're going to lose on the machine in the long run.

More About the Subject:

  • Vegas Click: Michael Bluejay's comprehensive explanation of how slot machines work. In my opinion, the best one out there.
  • Wizard of Odds: Michael Shackleford's slot machine advice -- the site also features an extensive FAQ section for slots.
  • Gambling Captain: If you're looking for a short but insightful read on the basics of slots (or other casino games), this is a good site to visit.

Slots are among the most popular ways to gamble. It’s easy to sit down, put your money in, and watch the reels spin. But there’s more going on than you might expect. Let’s take a look inside to understand what’s happening when you pull the lever.

Slot machines generally have three or more “reels,” each of which has a number of symbols. While physical slot machines may have 20 or more symbols per reel, digital technology allows them to have many more—some have 256 virtual symbols—with millions of possible combinations. The combinations of symbols that pay out if you bet on them are called “paylines.”

Slot machines contain random number generators that can generate thousands of numbers per second, each of which is associated with a different combination of symbols. Whether you win or lose is determined by the random number generated in the exact instant you activate each play—if it matches a payline, you win. Since each spin is independent, random and unrelated to previous or future spins, it’s impossible to predict what will happen on each play.

There are many different kinds of slot machines. Some allow you to choose how many paylines to bet on per play, and how much you want to bet. Before you put your money in, figure out the cost per play, the odds, the paylines, the return to player, and anything else that will help you make the right decisions for you. Look for pay tables on or near the machine that explain everything you need to know.

The possible payouts and the odds of winning depend on the machine you’re playing, the paylines you choose to play, and how many credits you wager.

How Do Slot Machines Work In Casinos

Machines that cost pennies to play might pay out small prizes relatively often. Others cost several dollars per play, but offer bigger jackpots and higher odds. For instance, for the I Heart Triple Diamond penny machine, the odds of winning a prize are 1 in 12, but the odds of winning the top prize are only 1 in 649,400.

No matter what machine you decide to play, the odds always favour the house. This means that over time, it’s more likely than not that you will walk away with less money than when you started.

While machines can be programmed to pay out at higher or lower odds, a typical average house advantage for slot machines is 8%, meaning the average return the player is 92 percent. That makes slot machines less favourable than tables games such as fortune pai gow poker, blackjack and roulette, in terms of return to player.

GameHouse advantage, with optimal play
Baccarat1.06%
Blackjack0.5%
Craps0.8%
Fortune pai gow poker0.5 to 2.5%
Poker2 to 3.5%
Lottery50%
Roulette5.3%
Slot machines8% (average)

How Do Slot Machines Work In Indian Casinos Near Me

Playing longer doesn’t improve your odds of walking away a winner.

Persistence doesn’t pay off. Each play on a slot machine is independent, unpredictable and unrelated to what happened on the previous play. A machine is never “due for a win” and they don’t “go cold” after a win either.

Soon after you leave a machine it wins a jackpot—that doesn’t mean you would have won if you had kept playing.

Future wins on a machine are completely unrelated to what happened when you were playing. Because random number generators determine the outcome of each play, the results of each play are totally independent from what happened before. Outcomes depend on what random number is generated in the exact instant a player presses play or pulls the lever.

Machines that are furthest from the aisle do not pay out more because they’re played less often.

How often a machine is played has nothing to do with how likely it is to pay out on the next play. Payouts are determined by the pre-set odds of the machine and the unpredictable results of the random number generator inside.

How Do Bingo Slot Machines Work

You cannot improve your chances of winning at most slot machines.

How Do Slot Machines Work Wikipedia

Most slots are games of chance, based on the random number generator. For some machines, bonus games offer you a chance to influence the outcome by interacting with an arcade-style video game. While skill may be a factor, the random number generator usually determines whether you even get to play the bonus game and the amounts available to be won—so chance is still a major part of the deal.

Understand how skill and chance work and how they affect the games you play.

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Take this quiz to get a better understanding of your gambling habits.

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Understand the role randomness plays in games of skill and how it affects the outcome of the game.

How Do Slot Machines Work In Indian Casinos

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