What makes video slots games work?

Slots are the most played casino game in land-based and online casinos, thanks to their easy rules. You just have to place a bet, spin the reels and hope to land winning symbols on a payline to win massive payouts.

Even though playing slots is simple, you'll need more than luck to increase your chances of winning. Learn the key terms below to understand how you can make the most of your game:


Reels are the main part of slots games. These horizontal columns spin and display the symbols when you click the ‘spin’ button. Landing matching symbols on the reels reward you with payouts according to the game’s paytable. 

Each game has a different number of reels. Most modern video slots have 3 to 5 reels. You can also find 7 to 10 reels that go beyond the standard by creating distinct grid structures. Cascading reels remove every symbol that matches within the reels from the grid to leave room for new ones to drop.

RTP means Return to Player, which represents the amount of money you can expect to win from your bets. For example, if your preferred game has an RTP of 95%, then for every US$1 you bet, you can expect to receive US$0.95 back over a long period. However, this is only theoretically possible and not guaranteed to happen every time you bet on a slot game.

Slots casino games have different RTPs. For example, Gates of Olympus by Pragmatic Play has an RTP of 96.5%, while Hand of Anubis by Hacksaw Gaming has an RTP of 96.25%. Casino slots RTP is described and estimated using percentages.

Like reels, symbols are one of the main parts of slot games. Symbols are the icons you need to land in combinations on the reels to win. Land-based casinos usually use fruit symbols, but with video slots, gaming providers use different icons depending on the theme.

You can find different symbols on the reels. If you are a beginner, here’s a guide on the types of symbols:

  • Paying symbols

Paying symbols are regular symbols. The most common slot machine symbols on the online reels are the ten, the jack, the queen, the king, and the ace. However, video slots are more creative with their higher-paying symbols. Typically, they have striking visual effects and represent the game's theme.

  • Wild symbols

Wild symbols substitute any other symbol except Scatter on the reels, boosting your odds of a winning combination. It’s a special symbol popular among casino players that you can find in most 5-reel video slots nowadays.

  • Scatter symbols

Scatter symbols payout regardless of whether they appear on a payline or not. These symbols are among the most valuable and are used to activate various bonus features.

Their best feature is that they don't have to line up on the same pay line as the other video slot symbols. You must land a specific number of them on the reels to activate their corresponding bonus feature.

Paylines are one of the most critical parts of casino games. These are the patterns or lines where matching symbols should align to make a winning combination. In simple terms, paylines are the arrangements of the winning symbols on the reels that reward players with instant wins.

Before playing, ensure that you check the paylines of your preferred game. Here are some of the different types of paylines you might come across:

  • Fixed paylines

A fixed payline video slot is an all-or-nothing game, which means you must wager on all paylines to play. Slots of this type have more features. You can have bonuses, Wilds, Scatters, free spins, multipliers and many other features accessible here. They also have a higher reward for their players.

  • Adjustable paylines

Adjustable payline video slots are more flexible than a fixed payline. You can choose the number of lines you want to bet on in this type. This means more flexibility with your bets. Even though video slots with adjustable paylines don’t offer a variety of features, they come with frequent wins for the players.

  • Cluster paylines

A video slot with a cluster payline is a unique game where winning symbols are activated in clusters. This means you can land winning symbols from top to bottom, left to right or vice versa. You win if symbols appear in adjacent positions anywhere on the reels. NetEnt's Aloha Cluster Pays is the first video slot with cluster paylines which is now widely used in many slots. 

Paytable is where you can find the needed information in a video slot, including the number of reels, paylines, RTP, betting requirements, paying symbols, Wilds, scatters and bonuses. It can also include terms unique to a particular slot game. You can find the paytable in the video slot and check it whenever you need to remember slot game info.

Slot game variations to try

Slots casino games have variations you might encounter when looking for your preferred slot. Here are the slot game variations:

Classic slots

Classic slots feature three reels and columns and 5 paylines. Their simplicity and huge jackpots make them famous and timeless. Beginners usually start with classic slots to gain experience and move to more complex ones once they master the game.

Video slots

Video slots are 5-reel slots that feature up to or over 100 paylines. Most modern slots that you can find at online casinos are video slots, which no longer use a lever to spin the reels. You only need to press a button to do so.

Video slots are also more popular now, thanks to their appealing animation, graphics and sounds. Moreover, this type of slot has bigger jackpot prizes.

Jackpot slots

The jackpot slot might be tempting because it offers a big jackpot prize, but this is riskier than other variations. The variance is higher, but your chances of winning are lower. But no matter how risky this slot variation is, many players still play this game for the jackpot prize.

Progressive slots

Progressive slots are among the games with huge jackpot prizes. When you play progressive slots, a portion of your wager goes towards the jackpot. The same goes with every bet other players place on it, which is why they are called progressive jackpot slots—the jackpot progresses with every bet placed. 

Your chances of winning, however, decrease because it offers large jackpot prizes. Mega Moolah, a progressive slot, has awarded the largest jackpot from a slot game that earned a Guinness World Record.

Slot game features to look out for

Each slot game offers different features such as bonuses, jackpots and paylines, which are all crucial to winning. To further understand, check the essential features below:

Bonus features

Bonus games are special features you trigger after meeting a specific requirement, like landing 3 Scatters anywhere on the reels. You can play special segments for free in these bonuses.

You can find different bonus features per game, such as free spins, buy bonuses, multipliers and more. Learn more about them in detail below:

Free Spins

Free spins are the most common bonus features, which give players additional spins without the need to bet. During this bonus game, your total winnings are added to the payout when the mode ends. Usually, you can get a minimum of 3 free spins.


The bonus multiplier is a symbol with an attached multiplier value that is then multiplied by your total bet to increase your winning payout. Casino slot multipliers are usually between 2x to 10x, but some have 1,000x to 5,000x.

Buy bonus

This bonus feature is for those who want to experience bonus rounds without waiting for the bonus symbols to appear on the reels. Buy bonus is where you can buy bonus rounds like free spins for a specific price, usually 100x your total bet.

Pick me bonus

This bonus feature is a mini-game within the slot where you choose among random items to win prizes. It could be a memory game or a card selection.

Wheel of Fortune

This bonus feature provides additional benefits like cash prizes, free spins, multipliers, etc., depending on the game. The wheel is divided into sections that determine the size of the bonus prize.

Gamble feature

The gamble feature is a common bonus feature, but not all video slots have this bonus round. In this bonus feature, you can gamble your winnings, and when you win, it doubles up. But, if you lose the gamble, you forfeit everything.

Wild features

Wild symbols substitute paying symbols to increase your chances of completing winning combinations. It comes in different forms, namely the following:

Expanding Wilds

This Wild symbol expands vertically on the reels and turns other symbols into Wilds. It increases your chance of landing winning combinations.

Colossal Wilds

Colossal Wilds are similar to Expanding Wilds but cover a larger area on the reels. It is a massive Wild that replaces four or nine symbols.

Stacked Wilds

This Wild feature appears in a group of reels, usually in three or four rows. A stacked wild can cover an entire reel when it lands, which increases your chance of winning paying symbols.

Sticky Wilds

Sticky Wilds are the most popular because they stay in place for the next few spins. Bonus games like free spins frequently feature this symbol.

Shifting Wilds

Shifting wilds remain on the reels but move to different positions while they spin.

Trailing Wilds

Trailing Wilds replicate themselves as they cross the reels. This process is repeated until the symbol reaches the bottom, leftmost or rightmost reel, leaving a trail of Wild symbols behind it.


These are the maximum prizes you can win in a slot game. There are two types you can find in slots, namely:

Fixed jackpot

When you play on a video slot with a fixed jackpot, there’s a fixed amount that you can win.

Progressive jackpot

A slot game with a progressive jackpot collects a certain amount of your bet and adds it to the jackpot to increase the payout.

Adjustable paylines

Game developers have introduced many adjustable payline types today, so you no longer have to rely on fixed paylines to score a win. Check them out below:


Megaways differ in that they have reels with varying amounts of symbols. A six-reel slot game, for example, could have symbols containing two to seven icons.

Infinity Reels

Infinity Reels slots add more reels on your every win and continue until there are no more wins.


These adjustable paylines add extra reels to the right of the grid. To add reels, you need to win at least one matching symbol. If you fail to extend a win further, the round will end, and the reels will reset to their original spot.

Nudge and Hold

The nudge function allows you to alter the outcome of a spin by moving a reel down one or more positions. On the other hand, the Hold feature holds a reel in place while the rest of the reels respin.

Cascading reels

In a cascading reel slot, winning symbols disappear, and new ones replace the empty spaces.

Expanding reels

In Expanding Reels, another reel can be added to the original grid, extending it and increasing the number of paylines. These extra reels offer more chances to form winning symbols.

Fun mode and Real mode

Practising slots at online casinos is possible through the fun mode feature. If you want to try out a video slot without risking any money, you can do so by playing in fun mode. When you are ready, you can switch to real mode.

The industry’s finest slots providers

We offer only the best slot games to our players, so expect nothing but the finest from the top gaming providers in the industry. Check out the most popular slot game developers available here:


Play’n GO

Play’n GO began operating in 1997 in Sweden. The provider focused on offering high-end and appealing slots and multiplayer games with distinct graphics.


Pragmatic Play

Pragmatic Play is one of the most well-known casino gaming providers, with a portfolio of mobile-friendly and high-quality games. The games are available in 31 different languages. 

Try its top games:



BGaming is a newcomer to the industry but has already established itself as one of the best online casino providers with a high-quality and innovative approach. Its primary focus is on slot games and table games. 

Check its best games below:


NoLimit City

Starting in 2013, NoLimit City is a gaming provider known for games with top-notch graphics available on all devices. 

Try some of its outstanding games below:


NoLimit City

This top gaming provider started in 2017. Hacksaw Gaming offers slots with aesthetically pleasing graphics and visual effects. Its best games include the following:

More top gaming providers at BC.GAME:

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How to play slots at BC.GAME

Playing your favourite slots at BC.GAME is easy. You only need to follow these easy steps:

  1. Create an account/sign-up process

The first thing you need to do is to create an account. Do the steps below:

  • Go to BC.GAME website
  • Click the ‘Sign up’ button at the top of the homepage
  • Provide the necessary details needed
  • Verify your email address.
  1. Deposit funds

After creating a BC.GAME account, you can now deposit funds. You can deposit crypto, fiat or NFT. Here’s how you can deposit funds into your account:

  • Click ‘Wallet’ at the top of the homepage
  • Choose your preferred currency, whether fiat or crypto
  • Then, select the token or fiat currency you want to deposit
  • For crypto and NFT, copy the deposit address. For fiat, select your preferred payment method.
  • Provide the details needed.
  1. Choose your game

Once you fund your account, you can now choose your favourite slot games and bet all you want. You have over 7,000 options from top gaming providers here at BC.GAME.

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Can you win slots in a casino?

Yes, you can win in casino slot games since the results are randomly generated. Also, most of them have high RTPs.

Why are bitcoin casino slots so popular?

Crypto casinos are becoming more popular because they offer exciting slot games with different themes, bonuses and jackpot prizes.

What casino slot machine is the best to play?

One of the best video slots you can find at BC.GAME is Immortal Romance by Microgaming because of its immersive story and rewarding features.

Where can I play slots for free?

You can play slots for free here at BC.GAME, where we offer over 7,000 slot games with fun modes.

Where to play slots for real money?

You can also play slot games and win real money at BC.GAME through real mode.

Which casino slots pay out the most?

Progressive slots like Mega Moolah, which has paid over US$21 million, usually pay the most.