Slots Rules - How to Play and Win at Big Jackpots

Rules on slot machines dictate how to play and can affect how much you win or whether you get to keep what you win. Therefore, newbies and experienced players should read up on guides for games, such as this one, where we discuss the most important rules for casino slots in 2024. Here, you will learn about common game mechanics and bonus features that take the fun of playing online games to a whole new level.

Written by Amanda Evans 20 minute read
basic slot rules

What's the Objective?

The game interface on virtual slots contains reels with different symbols that match the theme. Each symbol is assigned a value, with some having the potential to activate special features like free spins, in-game bonuses, and high multipliers. So the objective is to spin the reels aiming to land on the highest valued symbols combo, which can trigger the grand bet multiplier or a progressive jackpot. To find out the values assigned to each symbol, check the paytable that comes with each game and plan your bets to cover all pay lines. Doing that is the best way to win at slots.

Online Slots Rules - Basic Game Play

Developers have pushed their creative boundaries to create amazing titles with exciting features and intuitive user experiences. Following this, players are spoilt for choice when looking for online slots to play. Many titles allow you to play for free in demo mode and learn how to play and win without depositing. We suggest that you take time playing for fun on the reels. some slots rules change based on the game you select, but the basic rules are all the same. Once you select a game to play, follow these rules listed below.

  • Set the Bet Size : Choose how much you want to bet by adjusting the amount of coins on each pay line. Most games cater to low-budget players as well as high rollers, with some penny slots allowing players to bet as little as $0.01. Remember to check the maximum bet limit allowed and note any bonus conditions that mention the highest bet limit in case you claim free spins or cash bonuses.
  • Select the Number of Paylines : Slots with multiple pay lines allow you to choose the number of pay lines you wish to cover per spin. Often, rules applicable to slots in casinos require that you cover all pay lines with the maximum bet to access in-game features. For instance, you can only win the jackpot in some progressive games if your bet covers all pay lines. Check if the game you play has such rules and take chances on all available pay lines for better payouts.
  • Spin the Reels : With your bet in place, click the start button to spin the reels and keep your fingers crossed for a favourable outcome. New releases offer an autospin feature where you can configure the game to automatically place a number of bets for you.
  • Check the Outcome : On stoppage, the reels show the symbols you landed. Check the outcome and the pay table to know how much you have won. Patterns that include high-value symbols pay better than those with low-value symbols.

Paylines, Reels, and Coin Value

When learning the basics of how to play slot machines in 2024, it is inevitable to come across aspects affecting how bets are placed and payouts are calculated. These include pay lines, reels and coin value. In the next sections, we go into the finer details of how slots work and explain the secrets behind choosing titles with the right number of pay lines for new and experienced players. Knowing this will also help whe it comes to applying different slots strategies.

Paylines Explained

A pay line is a defined pattern in the paytable that pays out winnings on a slot game. To get a payout, you must have at least three matching symbols on a pay line, with the amount won getting better with more matching symbols. Classic games offered one fixed pay line but things have changed in modern gaming, with some games including dynamics that pay on multiple pay lines. Even more exciting are games with multiple ways to win, where the pay lines are not only straight horizontal lines but also diagonal and zig-zag-matched symbols. In addition, you can land wilds which have the unique capability of transforming to other high-value symbols to complete winning combinations and trigger progressive jackpots. To better understand the basic rules of how to win at casino online slots, check out the following list explaining how you can win on pay lines that pay from left to right and those that pay both ways.

  • Win Left to Right : Slots with win left to right pay lines pay the player for matching symbols beginning with the left-most reel and working towards the right. So, for winning combos to activate a payout, they are counted from left to right. Any combinations that are not ordered left to right do not get a payout, limiting the number of combos that add to your winnings.
  • Win Both Ways : Games with win both ways pay lines activate payouts on matching symbols running left to right and right to left. That way, you have more chances of receiving a win compared to the win left to right games. Note that each line only pays once per spin. So, if you happen to land a winning combo running from left to right and right to left on the same line, you only get paid for one.

Paylines vs Way to Win when Learning Slots Rules

Paylines and ways to win offer different payout systems for players. So learning how each system works enables you to pick a title that aligns with your style of play. Games have come a long way from physical machines that were housed in land-based casinos to virtual titles available in 2024 casinos that you can access on a downloadable mobile app or browser. Before online games, players were limited to machines with a single payline. But as developers added new features after virtual gaming became accepted globally, new creations with multiple pay lines were released with some developers ditching the pay lines system entirely. Nowadays, fans are torn between spending real money in their bankroll on games that pay via pay lines and those that pay via ways to win. Our side-by-side comparison below helps put things into perspective:

  • Paylines

    Games that pay winnings via pay lines require you to match symbols from left to right or right to left, depending on the rules involved in the online game. Casino offers two options for pay lines, namely fixed and adjustable pay lines. With fixed pay lines, the amount you wager is equally divided to cover all lines. For instance, placing a $10 bet on a slot with 10 pay lines means you bet $1 on each line. Much more freedom to control your bet comes with adjustable pay lines that allow you to spread your bet on some of the available pay lines, leaving a few open. That way, you can reduce the amount wagered on each spin and capitalize on the reels you think are more likely to pay. For you to win, the matching symbols must land on a predetermined payline and you must have a bet on that payline.

  • Ways to Win

    Ways to win open up the chances to land a win anywhere on the reels as long as you land matching symbols as indicated on the game paytable. For a payout to be activated, the matching symbols have to be on adjacent reels, which are counted from left to right. Therefore, you will not miss out on payouts because the matching symbols do not fall under a pre-determined payline as with fixed paylines or because you failed to include a couple of reels when placing the bet as you would with adjustable paylines. Out-of-the-box thinking when creating slots introduced games that even pay on both ways, adding to the chances of winning. Ways to win configurations depend on the grid layout, with the most common games having 243 ways to win on a 5x3 grid and 1024 ways to win on a 5x4 grid.

Coin Value and How This Works

Coin value is used to help players make adjustments to the bet. For titles that pay via paylines, the coin value you pick defines the amount you wish to spend on each spin. For illustration, consider a game with rules requiring online casino members to bet on 10 pay lines for each spin. When configuring your wager, you would have to pick the coin value to bet on each pay line. Options here vary from $0.10, $0.20, $0.30 and so on. Selecting a coin value of $0.20 on such a title would mean you bet $2 per spin. That is the $0.20 coin value multiplied by the 10 pay lines. So, to adjust your next bet on the same game to $1, simply change the coin value to $0.10.

Using Autoplay with Online Casino Slots Games

After playing the same titles for a long time, you will realize that there are a lot of repetitive actions involved. Common repetitions could include setting the bet size, adjusting the coin value to your desired denomination, and hitting the spin button to spin the reels. All these can be automated for a gaming session where the player wishes to place similar bets on the same game in one session. When activated, the autoplay feature automatically places the same bet configuration on multiple spins. Depending on the game you play, the autoplay feature gives you freedom over the number of spins you want to bet and parameters like loss/win limit, and bonus triggers. Using the autoplay feature saves you time and enables you to put in more spins per minute than when using manual bet configurations. But it should be used with caution especially when playing with a limited budget. For safety, make a plan of what you wish to spend per session and stop when you meet your targeted number of spins.

understanding the payout table

Understanding the Payout Table

The evolution of games over the years added the complexities involved for each spin, making it necessary for developers to create guides defining how to play slots and calculate winnings. In simple terms, a paytable is an elaborate chart defining the payouts for different outcomes after spinning the reels. There, you will find online slots casino rules indicating the expected payout for matching three, four, or five symbols on one payline. In addition, pay tables elaborate the required symbols to activate free spins, bonuses, and bet multipliers. For progressive jackpot online gaming slots, paytables define the rules required to participate in the jackpot, be it betting the maximum coin value on each payline or just covering all paylines before spinning the reels. Therefore, the first stop before putting down real money wagers in a game should be the paytable to find out which bonuses you can trigger with specific combinations and how to get the biggest prize or jackpot if available.

Different Types of Slot Machines

Since the inception of online casino gaming, slots have morphed with changes in technology to become the most popular games today. You will commonly find slots occupying more than 70% of the games on many popular online casinos in 2024, with many well-known titles falling into one of the following categories:

  1. Classic : Hardware limitations in the olden days restricted software companies to the kind of games they could develop, resulting in classic slots with basic graphics. Since they were the only type available, some titles grew in popularity and have relevance to date. Having basic graphics on classic games enables developers to focus on optimizing device compatibility and functionality, enabling players to enjoy the action of such games on mobile as well as PCs.
  2. Video : Video slots lean heavily on creating an immersive gaming experience by leveraging modern-day computer graphic engines to render colourful animations and sound effects. In addition, they come with amazing features that add to gaming dynamics like expanding reels and in-game bonuses for players. On the developer's end, game designers have more freedom to experiment with the latest technologies when coming up with video slots, allowing them to play around with changing game modes and include free spins for players.
  3. Progressive : In progressive games, every participant contributes a small amount towards the grand prize, which grows progressively to thousands or millions of dollars. To trigger the grand prize in some games, you have to match the rarest symbols, while others randomly award the prize to one of the participants. Once the grand prize is paid out, the jackpot resets and players begin contributing again to the grand prize for another round of fun.

Slots Rules and Bonus Features

Slots are loaded with creative features that make gameplay worthwhile. With developers competing to churn out the best online slots, new players can be thrown into confusion when sifting through thousands of games with unique features. But Top 10 Casinos comes to the rescue of confused players with explanations of the most common bonus features you will come across when playing in 2024 below.

  • Wilds : Special icons among the symbols in slots that help players complete winning combinations. They have the ability to turn into any other symbols to fill up any gaps in high-paying combos. When you land a series with two matching icons, one wild, and other symbols, you will receive the payment for three matching symbols after the wild transforms into the third symbol to complete the winning combo.
  • Multipliers : Rewards activated by special symbols and combinations which work by multiplying your bet by the amount specified in the pay table. Low value symbols that appear frequently can trigger multipliers in the range of 2x, 5x, or 10x, while high value symbols can activate bet multipliers in the range of 50x, 100x, and more. It goes without saying that big bets coupled with high bet multipliers pay better than small bets.
  • Scatter : High ranking symbols with special capabilities when they appear in multiples. Usually, scatters activate free spins and other in-game bonuses. And when they appear in bonus rounds, they can activate the jackpot or unlock respins.
  • Free Spins : In game rewards activated by landing special symbols or specific symbol combinations on the reels. When active, you can spin the reels without deducting your bankroll and collect payouts if you land winning combos on free spins. This shouldn't be confused with no deposit free spins that the casino will give you for creating an account.
  • Pick'n Win : Bonus feature with pre-determined prizes behind icons. When activated, a player is given a chance to select an icon from several options and receives the reward behind what they choose. Many games with this feature allow players to upgrade through levels and earn better rewards with each new level unlocked.
  • Sticky Wilds : Special wilds with more capabilities than regular wilds. These remain in place until activated or until they form a winning combination. At times, sticky wilds collected during free spins bonus rounds are carried over to the reel after clearing up the bonus balance.
  • Expanding Wilds : High paying wild symbols that expand to fill up the entire payline on which they appear. These are only available on a few games and can massively boost your winning chances.
  • Avalanches : Creative mechanics on the reels which causes symbols in a winning combination to disappear, making room for more icons to come in and hopefully complete additional winning combinations. With these, you can win multiple prizes on one spin.
  • Megaways : One of the most recent features allowing games to house between 2 and 7 rows on 6 reels. As a result, megaways offer thousands of ways to win and have high prizes for matching series with high-value symbols.
  • Bonus Buy : Rewards that don't have to be earned but can be bought for a given prize. Usually, bonuses are triggered by landing rare symbols and combinations. But with bonus buy features, you only need to part with cash from your bankroll to get free spins or bonus buy in-game features.

RTP, Volatility, and RNG are Important in Slots Rules

Developers have to adhere to gaming rules when creating slots for online casinos. International gambling rules require that games give all players a fair chance at winning and that the outcome is random for each spin. That way, experience does not factor in when predicting the outcome since no one can predict the outcome once the reels start spinning. To control fairness and retain randomness of the outcome, Return to Player (RTP) ratings go hand in hand with the volatility of games. For more details on each of these, go through the following sections explaining the slots rules behind RTP, volatility, and RNG software settings.

What is RNG Software?

RNG stands for Random Number Generator software, whose function is to make the outcome unpredictable so that wins are purely by chance rather than using a slot strategy. In practice, RNG software works by implementing an algorithm stored with the gaming files on a server, with a call to the algorithm initiated for each spin. As such, the game engine stores logs that can be audited to prove that the game in question gives all participants fair chances of hitting a winning combination.

RTP and its Importance in Online Slots

RTP is the acronym for Return To Player rate, which indicates the theoretical return a player should expect from a game over time and is represented as a percentage. You should know that the RTP rate indicated on a particular slot is the average figure arrived at over millions of spins. Therefore, there is no predicting what will happen over a few spins, which suits most players' plans who follow online casino slots rules. Developers create titles that can be classified into low RTP games with the average RTP ranging between 90% to 93%, mid-level RTP titles in the range of 94% to 96%, and high RTP titles that have RTP rates between 97% and 99%. Usually, you want to settle for games with a high RTP, since they are more likely to pay back a large percentage of what you wager.

Volatility Explained

Volatility rules in slots show how the RTP is arrived at and can be low or high. Not to be confused with the RTP, the volatility describes the likelihood of hitting wins. Low volatility games are designed to pay out frequently, but only offer small multipliers and little to no bonus features. On the other hand, high-volatility games are structured to pay huge wins on rare occasions in which a player lands high-value symbols to active bonus features and bet multipliers. Considering how the volatility affects your chances of winnings, consider the tips explained in the following section to know if you should wager on low or high-volatility games:

  • Rules on When to Play Low Volatility Slots

    Low volatility games are set up in a way that players can win small prizes multiple times in one session. As such, you should consider low volatility games when playing for a short while and want to spread your bankroll to cover many spins. Any winnings you collect along the way go to funding your bankroll to extend your time on the reels. With this strategy, you will be more or less playing for fun rather than making huge winnings.

  • Rules on When to Play High Volatility Slots

    High volatility games are designed to pay huge winnings on spins with high-value symbols and can boost your payout with features like the gamble feature, bonuses, and free spins. However, the likelihood of landing the big prizes on just a few spins is small, making these games better suited for players who plan on spending lots of money to spin the reels many times. A good strategy would be to stop immediately after a huge win, considering that you have very slim chances of hitting many big wins in a row.

Slot Machine Strategy - Best Ways to Win at Slots

Even though slot machines are unpredictable, you can improve your chances of winning by employing the following strategies recommended by Top 10 Casinos:

  • Know Your Game : Take time to learn how your favourite game works, including checking the pay table for a hint of in-game bonuses, how to activate lucrative bet multipliers, and whether you can purchase bonus features.
  • Consider The RTP : Do not be mesmerized by colourful graphics and end up playing games that favour the house in the long run. Rather, consider high RTP games for better chances of getting back what you spend.
  • Take Advantage of Bonuses : Claim free spins and cash bonuses offered by online casinos to boost your real money balance after making a deposit. Remember to adhere to bonus terms and have enough to meet wagering requirements to keep winnings.
  • Play Maximum Lines : Watch out for games with flexible pay lines and make sure to cover all lines. Doing that gives you better chances of collecting a payout on all the winning combinations that land on the reels.
  • Set Bet Size According to Volatility : Understand how the volatility in games comes about and make adjustments accordingly. Low-volatility games have small payouts more frequently, so bet high on these. On the other hand, high volatility games pay bigger prizes less often, so use your bankroll to bet on many spins.
  • Practice with Free Games : Demo mode games are offered free of charge on legit sites, giving you an avenue to practice with no risk. In addition, you can enjoy playing with no registration to a casino and no download of any PC or mobile app.
  • Have A Budget : Only spend cash that you would not mind losing in casinos. Responsible gambling helps you enjoy games for what they were made for, which is having fun with the likelihood of hitting a lucky spin.

Rules for Playing Progressive Jackpot Slots

Progressive jackpots offer bigger prizes, better features, and more bonuses for players compared to ordinary games that pay via bet multipliers. Most jackpot games have multiple paylines and allow you to adjust the coin size and bet according to your budget. To participate in the progressive jackpot and have a shot at winning the grand prize, you must bet the maximum allowed bet on most games. However, there are few options with randomly activated jackpots, which allow lucky players to compete for the grand prize in a lucky spin. A good example is the Mega Moolah jackpot which randomly gives players a chance to choose between mini, minor, major, and mega jackpots when they trigger the jackpot wheel. Regardless of the type of jackpot you play, casino online slots rules for progressive games apply. So, the prize is won at random with chances of hitting the big win getting better for players who participate often.

How Progressive Slots Work

When playing online, you will likely come across three types of jackpot games, namely, stand-alone, local and wide-area network progressive games. Stand-alone progressive games usually have a fixed jackpot won by landing high-value symbols on the reels in one game. Local jackpots can be on one or more games, with participants limited to one casino. Wide area jackpots are open to players from many casinos and often have mouth-watering prizes that can go up to millions. A small portion of each wager placed on a progressive game goes towards the pot. Therefore, popular progressive games that attract millions of players can quickly rise to thousands of dollars and hit millions in a few weeks. The grand prize keeps growing until a lucky player lands the combination required to activate the jackpot prize. When that happens, the grand prize resets to the original figure and players begin contributing a portion of their real money again. While there exists no known strategy to help you win the grand prize in progressive jackpots, the following slot machine tips can help you enjoy the ride as you await the big win:

  • Set aside an amount to spend on progressive jackpots and stick to your budget.
  • Wager the maximum amount if the game you play requires you to do that to participate in the jackpot.
  • Check updates about the jackpot you play for insights into how much past winners have won and how often the game pays.
  • Avoid playing for extended periods and plan regular breaks to refresh your mind. That helps you manage your budget and keep a clear head when spinning the reels for a big win.

Slots Tournaments - Rules and What You Need to Know

Casinos host tournaments for players to showcase their skills and stand a chance to walk out with a huge prize. In many cases, you have to part with a buy-in amount to participate, after which you get to play the game selected for the tournament for a limited time. The winner is whoever can rack up the biggest winnings in the allocated time limit. Each tournament has unique rules but there are a couple of limitations that cut across the board. For example, participants can only use the credits allocated to play. Anyone who tries tricks like topping up the credits with real money to get an upper hand can be penalized or struck out from the tournament. In addition, you have to play during the allowed time. Extending past that will cause you to lose points and rank lower on the leaderboard. Prizes are awarded to multiple players, with the biggest payout going to the player who ranks at the top while smaller prizes go to the rest based on where they are ranked at the end of the competition.

If competition and the social aspect of tournaments appeals to you, you'll probably enjoy live dealer slots. These are a new type of live dealer game where you get to play some of the most popular slots with a live dealer and a wheel they spin. They are great fun so be sure to check out our live casino slots guide if you'd like to know more.

Tournament Winning Tips

Tournaments pay better prizes compared to playing normal slots. To win big, you should spend enough time building skills to gain enough experience to battle it out with the professionals. Here are a couple of tips we think can help you level up and stand better chances of ranking top in tournaments.

  1. Use Auto Spin : Activating automated bets with the Autospin button helps you wager many bets before the allocated period lapses. Saving the few extra seconds you would take to bet manually could make the difference between winning the biggest prize and settling for the runners-up prize.
  2. Play As Many Paylines As Possible : Rushing to beat the clock to have the biggest win in a tournament prompts players to leave no payline open. That way, all possible winning combinations add to the final result and help you rank above other participants when the tournament closes.
  3. Use Max Bet Feature : Maximize your bet on each spin for the biggest payout. Adjust the coin size to the highest possible figure and remember to adhere to the rules in case the tournament limits the maximum amount you are allowed to wager in one spin.

Learn the Rules by Playing Free Slots

As evidenced by the sections discussed in this Top 10 Casinos guide, there are so many things to consider when playing on reels. So a free ride on some popular games would do you a lot of good and help you grasp how important aspects work. Consider playing free slots for fun by opening demo mode versions of selected games. With these, beginners can start spinning the reels with no registration to an online casino and enjoy no download gameplay on your mobile browser.

FAQs

  • Can you play slots games online at a casino for real money?

    Yes. Sign up for an online casino user account and deposit real money to your bankroll to start playing real money slots, blackjack, roulette, and live dealer casino games.
  • Are slot machine rules easy to learn?

    Rules guiding gameplay on slots are easy to learn since the games are won by sheer luck rather than strategy.
  • What's the difference between the spin button and the bet max button?

    Spin button is used to start spinning the reels while the bet max button is used to adjust the wager to the highest allowed amount.
  • Why is RTP and volatility important when learning slots rules?

    RTP and volatility are used to determine how often a slot pays out winning and the theoretical returns you should expect in long term gaming.
  • What's the biggest progressive jackpot ever won?

    On March 21, 2003, an engineer based in Los Angeles made it to the history books after winning a whopping $39.7 million in Excalibur Casino. This was after risking a $100 bet on the Megabucks slot machine.
  • Which software provider makes the best games?

    Microgaming releases stand out as the best slots you can play online, with many 3D slots, progressive jackpots, video poker options and a few table games.
  • Will learning strategy rules help me to win on slots?

    All strategies can do for you on slots is to help you manage your bankroll. All slots have a random number generator engine that ensures fairness on each spin.
  • Is it better to claim free spins or no deposit cash for these games?

    Free spins bonuses are better than no deposit cash in most cases due to low wagering requirements and they are often more readily available.
  • How do I know the RNG software is fair and not rigged?

    Casinos invite third-party auditors to review games for fairness. So check if the site you join to play slots displays a stamp of approval from well-regarded auditors like iTechLabs.
  • Is there a way to tell if a jackpot is ready to be won?

    No. Jackpots are won at random. There is no way to tell if the next spin could be the one that turns you into an instant millionaire.
 Amanda Evans
Written by
Amanda Evans - Chief Editor

Amanda has been involved with all aspects of the content creation at Top10Casinos.com including research, planning, writing and editing. The dynamic environment has kept her engaged and continually learning which along with +15 years iGaming experience helped propel her into the Chief Editor role.

Visit my profile for more