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Before we look at the online slots with the best bonus games to play, we need to first think about what the bonus features mean and what they offer to players.

In this guide, we will explain everything you need to know about the bonus features, including the different types of bonuses available, how they work, and the best online scam games to play. We will also look at the difference between slot machines with bonus features and slot machines without, to see how they compare.

Bonus features are usually one of the key factors that any player looking for a good online slot will consider. This is not only because the bonuses make the game more exciting to play, but they also contribute to the winning potential of the game, make it more varied and exciting and give you a sense of anticipation and excitement, which is always a bonus.

There are many different types of bonuses that can be found in online slots and although they are generally simple and easy to understand, it is important to know how they work and how they can have an impact on what you can win in any online slot.

Keep reading this guide to the best online slots bonus games to learn more about bonuses and which are the best slots you can play.


What are online slots and how do they work?

Online slots are the digital version of the slot machines in physical casinos and represent a means of playing available 24/7, accessible from any device with an internet connection. A major difference between online and physical slots is that online slots allow players to try free online slot games using virtual funds, an initiative of licensed online casinos.

ย To understand how online slots work, you need to know that there is no human influence on the outcomes, so you cannot have game strategies or influence your chances of winning by the frequency with which you access the same type of online slot.

On online slots, luck is nothing more than an effect of combinations of numbers generated by a computer program that uses an RNG (Random Number Generator) to generate random numbers. The outcome of each round is dictated only by this algorithm and has nothing to do with the results obtained at previous spins.

Also, each online slot has a winning percentage (RTP) that determines how much of the amount played can be recovered in the form of winnings. It is recommended to choose slots with the highest RTP to reduce the loss of money.

RNG (Random Number Generator) is a random number generation system that decides when each reel stops during a round. This system is implemented in all licensed casinos to ensure fairness and safety of gambling and to give each player equal chances of winning, relying only on luck, not on the user's skills.

RTP (Return To Player), or "payout", is the percentage of the amount played at the slot that can be returned back to the player in the form of winnings over a certain period of time. Each slot has its own reimbursement to the player, based on the average value of the RTP percentages of all existing casino games. There are no games with a 100% RTP because the casino can never lose.

Top 3 Most Popular Online Slots at Spin247 Casino

Gates of Olympus Slot

Gates of Olympus Slot - Meet the Greek mythological gods as you spin the reels of the online slot Gates Of Olympus. The Gates of Olympus slot is still relatively new on the stage, being released in 2021. However, it has firmly established itself as being very popular among eager online scammers. The game comes with six reels, high volatility and a healthy RTP of 96.50%.

Sweet Bonanza

Sweet Bonanza is a delightful and colorful online slot game that takes players on a journey to a world of sugary treats and delicious delights. The game's visual design is reminiscent of a candy wonderland, featuring vibrant and cheerful graphics that include an array of mouthwatering symbols such as fruits, candies, and lollipops.

With a unique grid layout and cluster-pay mechanics, Sweet Bonanza offers a fresh take on traditional slot gameplay. Instead of traditional paylines, players are tasked with forming clusters of matching symbols, which explode to make way for new symbols, potentially creating chain reactions for bigger wins. This cascading feature adds an extra layer of excitement as the game unfolds.

Lucky Irish Fortune

Lucky Irish Fortune is an engaging online slot game that captures the essence of Irish culture and folklore. Drawing inspiration from the Emerald Isle, the game's visuals are adorned with lush green landscapes, leprechauns, pots of gold, and other iconic symbols associated with Irish luck and charm.

The game features a traditional reel setup with paylines that showcase symbols like shamrocks, horseshoes, and leprechaun hats. The backdrop is often a picturesque Irish countryside scene, complete with rolling hills and rainbows that evoke the legend of leprechauns guarding their hidden treasures.

One of the standout features of Lucky Irish Fortune is its bonus rounds. Landing certain combinations of symbols can trigger free spins or interactive mini-games that are centered around Irish-themed activities, like searching for a leprechaun's pot of gold at the end of the rainbow or collecting lucky charms for extra rewards. These bonus rounds not only provide players with the chance to win additional prizes but also add an extra layer of entertainment to the gameplay.

๐Ÿ”ฅGates of Olympus Slot๐Ÿ†— RTP: 96.50%
๐ŸญSweet Bonanza๐Ÿ†— RTP: 96.48%
๐Ÿ€Lucky Irish Fortune๐Ÿ†— RTP: 95.32%

Play Gates of Olympus online game for free at Spin247 Casino, and convince yourself!

Recommended deposit methods for online slots

When looking for the best online slots with the best bonus games to play, you should also consider the deposit and withdrawal methods available at the casino you are playing at. This is one of the most important features you need to look at if you want to make the most of your experience when playing any online slot.

The different deposit methods usually offered at any online casino include bank transfers, electronic wallets, and debit cards. If you choose a reliable payment method, the best deposit method is a matter of preference. Of course, one thing you need to keep in mind is the processing time.

This means how long it will take until your deposited funds appear in your balance and, more importantly, how quickly you can get withdrawals from your casino winnings. The processing time also depends on the specific casino withdrawal policy, but in general, electronic wallets are the faster option if you are looking for quick transactions.

There are several different banking options available, which vary from one online casino to another, but it is important to choose one that is easy to use and safe to prevent fraud. Some casinos also offer different payment methods for deposits and withdrawals, some options being available for one, but not for the other, so this is another factor you need to consider before playing.

To play any online slot at Spin247 Casino, you can choose from the casinoโ€™s trusted banking options such as Visa, Mastercard, TopPay and Paysafecard. To make it even more convenient to make transactions at Spin247 Casino, each payment method is available for both deposits and withdrawals, with no casino fees involved.

And if you are looking for the fastest banking option to withdraw your funds or to make a recharge, then you will be happy to learn that the processing time for any transaction is instantaneous at Spin247 Casino, regardless of the payment method you have selected.


FAQ - Top Online Slots

Online slots are digital versions of slot machines in physical casinos that can be accessed via a mobile phone or a computer. Their operation is based on a computer program called the RNG (Random Number Generator), which generates random numbers to decide the results of each round.

The best online slots vary depending on the preferences of each player. Some of the most popular online slots include Gates of Olympus, Sweet Bonanza and Lucky Irish Fortune.

Online slots rankings are determined by various factors, such as popularity, payout frequency, winning percentage (RTP), bonuses and special features. These are considered by casino experts and players to determine the best online slots.

Yes, online slots are safe if you play at a licensed and regulated online casino. These casinos use RNG software to guarantee random and fair results, and financial transactions are secured by powerful encryption protocols.

Yes, most online casinos offer the possibility to play online slots for free, using virtual funds. This option can be useful to get acquainted with the game and to test different strategies without risking losing real money.