Understanding Slot Machine Pay Tables

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  • Appendices
  • Slots Analysis
  • Miscellaneous
  1. Understanding Slot Machine Pay Tables Without
  2. Understanding Slot Machine Pay Tables Printable
Understanding Slot Machine Pay Tables

Pay tables matter a lot! It is very important to always check on the payout rates of every single slot machine you decide to play and most importantly, you must check on this before choosing a slot machine. Each slot machine has its own set-up with different payouts, and the outcome can really make a difference. Slots Pay Table. A pay table basically tells you how much you will make when you get images to line up on a slot machine. Based on the machine, different images equal different payouts while other images may even give you a bonus spin or money multiplier.

Introduction

When it comes to gambling, the easier a game is to understand the worse the odds usually are. This is certainly the case with slot machines. Playing them is as easy as pressing a button. However, between the high house edge and fast rate of play, there is no quicker way to lose your money in a casino.

Before going further, let me make clear that this page addresses the way slot machines work in most parts of the United States and the world. However, some parts of this page do not apply everywhere. For example, I state that slot machines have a memory-less property, where the odds of every spin are the same. In some places, like the UK, some machines in bars, called 'fruit machines,' have a mechanism that guarantees a certain profit over the short run, which causes the game to go through loose and tight cycles. These games do not have the usual independence property of the major slot makers.

Understanding slot machine pay tables

How They Work

Whether you're playing a 3-reel single-line game or a 5-reel 25-line game, the outcome of every bet is ultimately determined by random numbers. The game will choose one random number for each reel, map that number onto a position on the reel, stop the reel in the appointed place, and score whatever the outcome is. In other words, the outcome is predestined the moment you press the button; the rest is just for show. There are no hot and cold cycles; your odds are the same for every spin on a given machine.

Slot machines are just about the only game in the casino where the odds are not quantifiable. In other words, the player doesn't know how the game was designed, so it is difficult to look at an actual game to use as an example. So, to help explain how they work, I created the Atkins Diet slot machine (link). It is a simple, five-reel game with a free spin bonus round, much like IGT's Cleopatra game.

For information on how it works and all the odds, please visit my Atkins Diet par sheet.

For a more complicated example, featuring sticky wilds in the bonus, please try my Vamos a Las Vegas slot machine.

For information on how it works and all the odds, please visit my Vamos a Las Vegas par sheet (PDF).

Odds

The following table shows the casino win for Clark County Nevada (where Las Vegas is) for all slots for calendar year 2012. They define 'slot' as any electronic game, including video poker and video keno. I've found video keno to be about equally as tight as reeled slots, but video poker has a much higher return. So, the return for reeled slots should be higher than these figures.

Clark County Slot Win 2012

Understanding Slot Machine Pay Tables
DenominationCasino Win (pct)
$0.0110.77%
$0.055.96%
$0.255.74%
$1.005.64%
$5.005.51%
$25.003.97%
$100.004.73%
Megabucks12.89%
Multi-denomination5.32%
Total6.58%

Source: Nevada Gaming Control Board, Gaming Revenue Report for December 2012 (PDF, see page 6).

Most players play penny video slots. Based on past research, I find the house edge on those to usually be set from 6% to 15%. In general, the nicer the casino, the tighter the slots.

Advice

While there is no skill to playing slots, there is some skill in selecting which machine to play and ways you can maximize your return. What follows is my advice, if you must play slots at all.

  • Always use a player card. Slots may be a lousy bet, but the casinos treat slot players very well. A $1 slot player will probably get comped better than a $100 blackjack player. Of course, don't play for the reason of getting comps. You'll give them a lot more than they'll give you.
  • The simpler the game, the better the odds. The fancy games with big signs and video screens tend to not pay as well as the simple games. However, slot players always tell me the fancy games are more fun.
  • The higher the denomination, the better the odds. For that reason, it is better to play one coin per line on a 5-cent game than five coins per line on a 1-cent game.
  • Don't forget to cash out and take your ticket when you leave. It is easy to forget after hitting a jackpot.
  • Try to play slowly and as little as possible to get your fix.
  • In some games there is a skill feature, like Top Dollar. In such games, advice is usually offered, which you should take.

Myths and Facts

Just about everything that players believe about slots is untrue. Here are the most common myths and facts. As a reminder, this page is based on slot machines commonly found in the United States. Some machines, like 'fruit machines' found in the United Kingdom work differently.

  • Myth: Slot machines are programmed to go through a cycle of payoffs. Although the cycle can span thousands of spins, once it reaches the end the outcomes will repeat themselves in exactly the same order as the last cycle.

    Fact: This is not true at all. Every spin is random and independent of all past spins.

  • Myth: Slot machines are programmed to pay off a particular percentage of money bet. Thus, after a jackpot is hit the machine will tighten up to get back in balance. On the other hand, when a jackpot has not been hit for a long time it is overdue and more likely to hit.

    Fact: As just mentioned, each spin is independent of all past spins. That means that for a given machine game, the odds are always the same. It makes no difference when the last jackpot was hit or how much the game paid out in the last hour, day, week, or any period of time.

  • Myth: Machines pay more if a player card is not used.

    Fact: The mechanism that determines the outcome of each play does not consider whether a card is used or not. The odds are the same with or without one.

  • Myth: Using a player card enables the casino to report my winnings to the IRS.

    Fact: That makes no difference. If you win $1,200 or more they will report it either way. If you have a net losing year, which you probably will, at least the casino will have evidence of it. Such annual win/loss statements may be used as evidence to declare offsetting loses to jackpot wins.

  • Myth: The slot department can tighten my game with the press of a button remotely. Thus, you better be nice to the staff and tip them well, or they will use a remote control to have the machine take you down in a hurry.

    Fact: There is now some truth to the myth that the odds of a machine can be changed remotely. Such 'server-based slots' are still experimental and in a minority. Even with server-based slots, there are regulations in place to protect the player from the perceived abuses that could accompany them. For example, in Nevada a machine can not be altered remotely unless it has been idle for at least four minutes. Even then, the game will display a notice that it is being serviced during such changes. (source) Meanwhile, for the vast majority of slots, somebody would physically need to open the machine and change a computer chip, known as an EPROM chip, to make any changes.

  • Myth: The machines by the doors and heavy traffic flow areas tend to be loose while those hidden in quiet corners tend to be tight.

    Fact: I've studied the relationship between slot placement and return and found no correlation. Every slot director I've asked about this laughs it off as just another player myth.

  • Myth: Slots tend to be looser during slow hours on slow days of the week. However, when the casino is busy they tighten them up.

    Fact: Nobody would take the trouble to do this, even if he could. The fact of the matter is the casinos are trying to find a good balance between winning some money while letting the player leave happy. That is best achieved by slots loose enough to give the player a sufficiently long 'time on device,' as they call it in the industry, with a reasonable chance of winning so he will return to the same casino next time. If the slots are too tight, the players will sense it and be unlikely to return.

    The kind of place you're likely to find tight slots are those with a captive audience, like the Las Vegas airport. So, if the slot manager feels that 92% is the right return for a penny game, for example, he is likely to set every penny game all that way, and keep them that way for years.

Play

Atkins Diet
Analysis
Vamos a Las Vegas
Analysis (PDF). Australian Reels — One Line
Analysis (PDF)
Australian Reels — Five Line
Analysis
21 Bell
Analysis
Fruit Machine
Analysis

Reviews

  • Dazzle Me (NetEnt)
  • Mr. Vegas (Betsoft)
  • Sparks (NetEnt)

Internal Links

  • Appendix 1 shows the details and analysis of almost 4000 actual spins on a Reno slot machine.
  • Appendix 2 shows an example of the virtual reels behind a hypothetical slot machine and how the average return is calculated.
  • Appendix 3A: 2003 Las Vegas slot machine rankings.
  • Appendix 3B: 2002 Jean/Primm slot machine rankings.
  • Appendix 3C: 2002 Tunica slot machine rankings.
  • Appendix 3D: 2002 Henderson/Lake Mead slot machine rankings.
  • Appendix 3E: 2002 Quarter and dollar returns for Las Vegas slots
  • Appendix 4 shows how the return is calculated for my Wizard's Fruit Slot Machine.
  • Appendix 5 analysis of the 21 Bell Slot Machine.
  • Appendix 6 Analysis of Red, White, & Blue Slot Machine.
  • Lock and Roll analysis of the skill-based slot machine found in North Carolina.
  • Deconstructing Jackpot Party analysis of the video slot machine.
  • Deconstructing Lion's Share analysis of the classic MGM progressive game.
  • Deconstructing Cleopatra analysis of the popular IGT game.
  • Deconstructing Lionfish analysis of the slot game found on many Game Maker machines.
  • Deconstructing Megabucks.
  • Deconstructing the Atkins Diet slot machine.
  • Deconstructing Lucky Larry's Lobstermania.
  • Deconstructing Hexbreaker.
  • Deconstructing Blazing Sevens.
  • Deconstructing Hot Roll.
  • Mystery progressives on Ainsworth slots.
  • Mystery progressives on WMS slots.
  • Baltimore Sun article, in which I am quoted.
  • 100% Rebate on Slot Losses Promotions: When to quit playing when all losses are refunded.

External Links

  • For a simplified explanation of slots, please see my companion site Wizard of Vegas
  • German translation of this page is available at richtigspielen.com
  • Another decent overview of how slots work and some practical advice for playing them is How Slot Machines Work at VegasClick.com.
  • PAR Sheets, probabilities, and slot machine play: Implications for problem and non-problem gambling by Kevin A. Harrigan and Mike Dixon, University of Waterloo, Waterloo, Ontario, Canada. This is an outstanding academic paper that details how some popular slot machines were designed.
  • PAR Sheets, probabilities, and slot machine play: Implications for problem and non-problem gambling - Academic paper based on the par sheets for some modern slot machines

Written by: Michael Shackleford

Many people gravitate towards slot machines because of their simplicity. Pull a lever, see if the symbols match and you could be a winner!

There isn’t as much strategy involved as other casino games, but there is one element that you can control in slots to improve your odds of winning. You can select the number of lines that are played each time.

And that’s where the confusion can set in.

What are the advantages of playing more or less lines? How do you select the lines? And how many should you select?

Keep reading to learn more about how lines work in slots and how to decide the number of lines to play.

What Are Paylines

The technical gambling term for the lines on a slot machine is paylines. There is a reason for that name. What shows up on the lines determines whether or not you win.

Today, there are countless slot machines with varying numbers of paylines. Some video slot machines have up to 25+ lines that can be played at once. However, many physical slot machines have somewhere between 3-5 lines, and classic models only have a single line.

More Lines, More Chances to Win

In general, the more lines you play, the more chances you have to win. But the more lines you play to, the more each spin is cost. Makes sense given that the house is more likely to lose when more lines are played.

A number of professional poker players and poker enthusiasts have created payout tables based on the number of lines played for a specific type of slot machine. This gives them a clearer idea of their odds before spinning.

Tables

Understanding Slot Machine Pay Tables Without

Know How Combinations Can Be Made Across Lines

If you’re playing numerous lines, there may be more than one way to win. Making matches straight across a line is the standard way to win if you’re playing a single line. With multiple lines you may be able to make matches vertically and diagonally as well.

Special Considerations

Before choosing a slot machine and the number of lines to play, take these special considerations to mind:

  • Cost per line : The cost per line can range from one penny on up.

  • Payout : The cost to spin should justify the potential payout. Also, check whether matches with four or five symbols in a row offer better payouts.

  • How winning matches are made : Many multi-line slot machine award wins for horizontal, vertical and diagonal matches.

  • Number of symbols needed to win : typically 3-4 in a row. This affects the odds of lining up symbols vertically and diagonally.

Sometimes the odds will be better than others. The four factors above will help you decide how many slot machine paylines you should spin each time.

Understanding Slot Machine Pay Tables Printable

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