Why we have guides

You can never know too much about playing online slot machine games. Having a list of guides is useful because everything you ever wanted to know about online slots is in one place, and you can brush up on your knowledge any time you want or need to.

We made sure to put together the very best and most current information on a wide variety of topics pertaining to online slots. In our list of guides, you will find:

The Top 3 Resources

How we find our resources

We have a team of online gambling experts solely dedicated to gathering validated information on a wide variety of online gambling topics, including (but not limited to): laws, security, odds, taxes, rules, and more.

The Basics


We put together an interesting resource on the rich history of slot machine gaming. Learn all about Charles Fey’s Liberty Bell, how slot machines used to be made, when slot machines were first released, and how much slot machines have changed over the years.


Don’t know where to start? Start here! This is the guide all beginners need to read before playing slot machines online with real money.

Here, you will find slot machine basics, useful tips on choosing the right slot machine that suits your needs the best, directions on playing slot machines, and smart advice on making the most of your online slot machine playing experience.


If online games look more difficult to you than their land equivalent, no worries! Our tireless and highly experienced team have created a step-by-step guide on how to play online slots, starting from how to choose the best website and sign up to it. Even if you are a complete novice, we've got you covered!


Even though rules vary between slot machines, there are universal rules that apply to all slot machine games. Find out what they are in this guide. The more you know…

In this list of rules, you will learn about random number generators, payout rates, paylines and reels, and more. The number one rule? Play for fun, of course!


Variance is a term referring to how often a machine pays out and how big those payouts are. Variance is important, especially if you are a long-term player using strategies. You can find more information about types of variance and their affect on your game on our Variance page.


This comprehensive guide to slots odds has everything you need to know in order to make the best decisions while playing slot machine games online. The wisest thing you could ever do as a gambler is to know the odds before playing a game.

Even if you are a beginner, this guide will help you understand the house edge and everything else related to figuring out the odds. Not only that, but there is also a full table of different casino games, the different bets and rules for each one, and the odds for each bet and rule.


The allure of online slot games lies in their versatility and variance. There's a game for anything and everything: Greek mythology, sports, music bands and even cats! While you can choose a game by topic, there are other criteria that would lead you to choose a specific game. We have listed those criteria and explained them in detail for you.


This is the resource every online slots player needs to read before playing. It is a collection of the top 10 expert tips on optimizing your online slots playing experience.

Some of the tips include finding progressive jackpot slot machines, figuring out the odds of a game by checking the number of symbols, and taking advantage of slots promotions.


There are thousands and thousands of online slot games to choose from, and you may feel overwhelmed in choosing one over another. We are here to help with that. Our guide in choosing an online slots game will lead you in the right direction in terms of detecting the best and the most profitable slot games online.

The guide includes five factors you need to look at while choosing an online slot game.

Online Slots


This guide will teach you how to differentiate online slot games and choose the best one(s) for you. There are different reel slots (three-reel, five-reel, seven-reel, and nine-reel), progressive jackpots, slot machine themes, and bonus rounds.

We also cover the benefits of using each slot type and we strongly encourage you to play slot machines in their free mode first to get a feel of the game before investing any real money into it.


If you simply want to learn more about themed slot machines, check out this guide. It is a fun and educational read if you want to learn all about the different themed slots available at the most reputable online casinos, why pretty much every gaming developer has at least one game under every theme, and why they are becoming more and more popular.

Quick Facts About Playing Slots Online

  • Some countries require their citizens to pay taxes on their winnings, even if the winnings are won online.
  • Every single slot machine, online or offline, is run on a Random Number Generator. It ensures that the game is fair and the machine won’t be able to cheat the player.
  • The payout rate varies from slot machine to slot machine. Some machines offer a 55% payout rate while other machines offer a 98% payout rate. Online slot machines are far more generous than land-based slot machines are.


Heading to Las Vegas anytime soon? If so, you might want to read this resource all about the slot machines in Las Vegas. It covers everything you ever needed to know about how Las Vegas slots work, the taxes on your winnings in Vegas, the largest machines in Nevada, the most popular Vegas slots, and the best progressive slot machines you can find in Vegas.


If you are partial to online slots and/or video slots at brick-and-mortar casinos, this guide is for you. It explains everything related to video slots, ranging from video slot basics to the difference between video slots and classic slots.

This guide just might convince you to start playing video slots more often!


Not only do we have all the resources on online slot gaming, but we also have a comprehensive list of the five most popular slot machines of all time. If you are looking for new slot machine games to try out online or in a live casino, you might enjoy reading about these five high-quality games.

The games on the list are as follows: Wheel of Fortune, Michael Jackson – King of Pop, Hot Spin, Buffalo, and Tarzan Lord of the Jungle.


Getting a bonus is one of the best ways to win big at slots. Our guide on bonuses will teach you what bonuses are, how to find the best ones, and what some different bonuses are.

Not all bonuses are created equal, so it is pretty important to read this guide if you want to find the best bonuses that are worth your time.


If you want to get the most bang for your buck, you got to go for jackpots. This guide will teach you everything there is about jackpots. Hitting the jackpot is every slot player’s dream, and this guide just may help you reach it!

Here, you will learn all about basic jackpots, progressive jackpots, how to win both basic and progressive jackpots, the best slots to play, and why playing the max bet is the way to go.


On the fence about whether to gamble online or at a land-based casino? This list of the top 10 reasons why playing online is better just might win you over. Some of the points made in this list include convenience, lower betting limits, and the ability to switch casinos in an instant.


If you are new to the world of online gambling, you might want to read this resource on the myths of online gambling. Not everything you hear is true, and this page will clear up some of the misconceptions you may have.


Don’t waste your hard-earned money learning how to play progressive online slots. Read this guide first! Even if you already know how to play progressive online slots, we still recommend that you read our guide. Maybe you will learn a new thing or two.

Progressive slot machines are still a new thing, so you might want to learn a little more about it. The guide covers how progressive slot machines work, what makes you eligible to win a progressive jackpot, and whether or not progressive jackpots are really possible to win. (The answer is yes!)

Playing Online


Not all software is created equal. This resource on the different software and devices you could use to gamble online is a comprehensive guide to the advantages and disadvantages of each one. You will also learn some more cool tidbits, such as how software odds work and the different processes involved with fair gaming.


This guide is for players who are looking to come up with the best strategies to increase their chances of winning. Chock full of smart advice on strategizing your spins, this guide explains bankroll management, the best times to use maximum bets, payouts, and optimizing your chances of hitting it big by taking advantage of bonuses and VIP points.

Of course, slot machines are run on Random Number Generators, but it does not mean that you cannot find little ways to increase your chances of winning. This guide will show you how.


You can never be too safe while gambling online. Our guide to online casino security is just the thing you need to read before forking over your hard-earned cash to an online casino.

It explains what encryption is and how it works, random number generators, and how online casinos are audited on a regular basis. It will also show you how to choose the best online casinos or real money slot machine websites by checking their credentials.


As far as slot machine gaming is concerned, cheating happens on both ends. The player can cheat the machine, and the machine can cheat the player. Even though we do not advocate cheating at all, we put together this resource to caution you against playing machines that could cheat players. It used to be possible for the player to cheat the machine, but the ability to cheat at slots has since been removed. Read all about it here.


This in-depth guide covers everything you ever needed to know about online gambling laws in Europe, Asia, North America, and South America.

Here, you will find a lot of information on general gambling laws in each continent, some by country and state. The guide also delineates the risks involved with gambling in some countries.


If you’ve ever wanted to know more about how taxes work when it comes to online gambling, this is the guide for you. In this guide, we cover the basics of tax laws concerning online gambling in different countries, why it is important to keep accurate records for tax purposes, why you need to educate yourself on your country’s online gambling tax code, and much more.


Our guide on bankroll management will teach you everything you need to know about managing your bankroll wisely. This is an incredibly important aspect of gambling online, because once you run out of money, it’s game over. Making your money last as long as possible is the key to winning online slots.

Our resource on bankroll management is thorough and delineates many different aspects of bankroll management, including but not limited to: how much money to allocate per month for online gambling, useful tips on determining how much to bet each time, and knowing when to walk away.


Want to know what doubling up means? Wondering how payout percentages work? Looking for the definition of the term scatter symbol? That’s what this glossary is all about.

The more online gambling lingo you know, the more knowledgeable you are and the more likely you will win. This glossary will help you understand the most common slot terms while reading other resources and guides.


Our readers often contact us with questions, some of them more common than others. If you have a question you’d like to ask us, we recommend reading our FAQ section first. If your question is not there, you can always contact us directly at info@onlineslots.com.

Our FAQ section has 28 good questions, ranging from “what is a scatter symbol?” to “is there a good time of the day to play slot machines?”

Why it is important to have many resources on hand

The whole point of playing slot machine games online is to win some extra cash, isn’t it? That’s why the more knowledge you have, the more you will be able to optimize your chances of winning. Having many resources on hand saves you a lot of time as you won’t have to spend hours scouring the web for the most reliable information. We have all of it right here at your fingertips.

The Top 5 Tips on Playing Slots Online

  1. When visiting a new online casino, always check its credentials first before entrusting them with your sensitive information.

    Check our guide to online casino security for instructions on how to do this.

  2. Always play slot machine games with a payout of at least 95%.

    You want to get the most bang for your buck.

  3. Always take advantage of bonuses and loyalty programs.

    It will help you earn more chips to play with. When you are checking out an online casino, always take a look at its welcome bonuses and loyalty programs and determine whether or not the casino offers the best benefits for you.

  4. Always gamble with money you can afford to lose.

    In determining how much money you can gamble with, never put at risk any money you cannot afford to lose.

  5. If you want to win the maximum jackpot, you must make the maximum bet.

    Even though it is advised to play as many spins as possible, you should make the maximum bet if winning the jackpot is your sole goal. It might be a good idea to bet small at first to accumulate your chips, and when you have enough chips, start making the maximum bet.

What kind of jackpots are on offer for players?
Most slots offer good winnings, else players will not be playing them. However, some online slots offer very high jackpots, and there are quite a number that also have progressive jackpots: jackpots that increase the longer they stay un-won. Slots like Mega Moolah and Mega Fortune have jackpots that vary from a couple of hundred thousand to several million dollars at a time. Games like Hall of Gods and King Cashalot also often reach a half-million and more. Some of the recent jackpots that have been won have been around 100K to 400K, depending on the game.
How do I know if a slot machine game is safe to play online?
The first thing you want to do when entering an online casino is to check its credentials. You want to ensure that the online casino offers the tightest security measures and that it is audited on a regular basis. This guide to online casino security will show you how to do this.
I don’t understand some of the terminology when reading some of the resources. What do they mean?
We have just the solution for you: our glossary! You can find it here and read up on the most common terminology related to online slots.
Why should I gamble online instead of at a land-based casino?
For starters, gambling online is much quicker and more convenient than gambling in person. For a list of the top 10 reasons to gamble online, check out our resource titled “10 Reasons Online is Better”.
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