In 2020, top-notch online casinos present a staggering array of up to 400 diverse slot machines for you to choose from. Naturally, not all slots work the same way; they vary in gameplay and mechanics. To help you stay on top of things and discover the most enjoyable slots, we'll introduce you to the most popular types of slot machines. You can try out slot machines from every category right here on this page, completely free of charge and without any registration required.

Different types of slot machines at a glance

• Video slot machines with bonus games
• Classic slots with three or five reels
• Fruit machines or fruit games
• Adventure slots
• Slot machines featuring progressive jackpots.

Most of the slots available in online casinos belong to the category of video slot machines. These are digital slot games that typically feature five virtual reels, 5 to 100 paylines, bonus symbols, and bonus games. The objective of the game in most video slot machines is to collect groups of identical symbols on a payline from left to right in order to win a prize.

In some slot machines, winnings are counted not only from left to right, but also in the middle and from right to left. If the paylines are counted from two directions, it's called a 2-Way-Pay Slot. Having more paylines naturally increases your chances of winning. Things get even more thrilling with slot machines that have a 3-Way-Pay feature, where the lines are counted from both sides of the game field and from the middle.

Typically, video slots have anywhere from 7 to 12 different winning symbols, each with varying values. Low-value symbols often include the English playing card designations of 9, 10, J, Q, K, and A. The medium and high-value symbols, on the other hand, are uniquely designed for each game and depict an image that aligns with the theme of the slot machine.

Many slot games also feature bonus symbols, such as a wild, scatter, and special symbol. The wild symbol acts as a substitute for all other images. The scatter pays out prizes whenever it appears multiple times anywhere on the winning screen, regardless of paylines. Additionally, the scatter often triggers free spins or bonus rounds. Special symbols are responsible for granting you additional bonus games or the chance to win a jackpot, for example.

Most video slot machines also have free spin or bonus rounds that can be triggered by various events during the game, providing increased chances of winning. While a video slot machine doesn't necessarily have to have bonus games, this is the case with almost all modern online slots. You can find a breakdown of other features found in video slots here.

• Extra wild symbols are added as bonus wilds.

  Example: Columbus by Novoline

• Bonus Buy Feature: This additional function is sort of like a shortcut to the free spins round. By paying a specific amount, you can trigger a bonus feature, typically the free spins.

  Example: Sweet Bonanza by Pragmatic Play

• Cascade Feature: The Cascade Feature may be available either during regular gameplay and free spins or only during free spins. Whenever a win is achieved, the winning symbols involved are cleared, making way for new ones to slide in without requiring an additional bet.

  Example: Try out popular slot games like Ghost Slider by Merkur or Gonzo's Quest by NetEnt.

• Throughout the game, you'll accumulate winnings that aren't immediately paid out. Instead, these winnings contribute to your personal jackpot, which keeps growing but can also be lost. The longer you let the winnings grow, the higher the risk of losing them.

  Example: Merkur's Alles Spitze is a prime example.

• Whenever a wild symbol appears, it expands to cover all adjacent positions on the reels.

  Example: Explodiac by Bally Wulff is a great game for players to enjoy.

• Winning free spins with multipliers is an exciting feature in online gambling. You have the chance to earn a specific number of complimentary spins, during which all your winnings are multiplied by a predetermined factor. Sometimes, these multipliers can also increase progressively or be randomly determined. It adds an extra layer of thrill and potential profit to your gaming experience.

  Example: Novoline's Dolphin's Pearl is a great game to play.

• Multiplier Wilds: The wild symbol serves as more than just a placeholder, as it has the ability to multiply winnings as well – for instance, a 3x multiplier would triple the winnings.

  Example: Novoline's Lucky Lady's Charm is an ideal illustration.

• Free spins with bonus symbol: Prior to the start of the bonus round, a random bonus symbol is chosen. This symbol receives an additional ability, such as being a bonus wild symbol or an expanding scatter.

  Example: "Such as, Novoline's Book of Ra or Merkur's Magic Mirror."

• Cluster Win: In online slots with this feature, you score a win when a minimum number of identical symbols form connected clusters. This can happen anywhere on the game board, as long as the symbols are adjacent horizontally or vertically.

  Example: Play'n'GO's Reactoonz is a perfect demonstration.

• Megaways: Instead of relying on paylines, identical symbols only need to appear on consecutive reels here. This creates over 100,000 ways to win in some games.

  Example: Gonzo's Quest by NetEnt is a good illustration.

• For instance, you can consider playing Avalon 2 by Microgaming or Hulk by Playtech.

• Respin Option: After a specific event occurs, you will receive one or more complimentary spins, typically with enhanced chances of winning.

  Example: Starburst, developed by NetEnt, or Triple Chance, created by Merkur.

• Retrigger: Certain symbols can trigger additional free spins during a free spin round. Most often, a retrigger occurs when scatter symbols unlock free spins.

  Example: Try out the popular slot game "Book of Dead" developed by Play'n GO.

• Gamble Feature: With the risk feature, you have the opportunity to double your winnings, but there is a chance of losing the entire amount. Most online slots offer either a card risk or ladder risk, where you can either guess the color of a card or press a button at the right moment to climb the winning ladder.

  Example: Merkur's Blazing Star slot machine is a prime illustration.

• Stacked Symbols: The same symbols appear consecutively on a reel. The symbols are stacked on top of each other, giving you the opportunity to win on multiple lines.

  Example: Fruit Mania by Bally Wulff

• Stacked or stapled wilds: The wild symbol appears stacked on a reel. This gives you the opportunity to form winning combinations with the wild symbol on multiple paylines at the same time.

  Example: Merkur's Gladiators slot game.

• Sticky Wilds: All incoming wild symbols remain fixed until the end of the bonus games, boosting the chances of winning.

  Example: Merkur's El Torero

• Symbol upgrade: Symbols transform into higher-value symbols, resulting in bigger wins. This feature can be triggered by various events depending on the slot game.

  Example: Jimi Hendrix by NetEnt.

• Super-sized playing field: These slots feature more reels or more symbols per reel than traditional slot machines.

  Example: Roman Legion by Bally Wulff

• Full-screen wins: When the entire screen is filled with identical symbols, a full-screen is created and you win the maximum prize on all lines. Full-screens can also be formed with the help of special symbols.

  Example: Novoline's game "Lord of the Ocean" serves as a good illustration.

• Walking Wilds: When a wild symbol lands, it moves one position further in each round until it eventually disappears from the screen.

  Example: Jack and the Beanstalk by NetEnt

• Wild Reels: The entire visible part of a reel is made up of wild symbols. This placeholder reel completes winning combinations on multiple lines simultaneously, greatly increasing your chances of winning.

  Example: Thunderstruck II by Microgaming.

For decades, fruit games have been among the most popular slot games. That's why slot manufacturers like Merkur, Novoline, and Bally Wulff still focus on developing fruit slot machines alongside other slots. The classic slot games are also known as fruit machines, and they have a rather simple structure. They rarely include bonus games or special features.

The slot game is usually filled with various symbols, typically featuring fruits and other classic casino icons such as sevens, bells, stars, and suns. The lower and medium value symbols usually consist of fruits like cherries, lemons, plums, grapes, or melons. On the other hand, higher value symbols often include sevens or bells.

When it comes to fruit games, they tend to offer higher winnings compared to video slot machines because they don't feature bonus wins through free spins or other bonus rounds. For instance, it's not uncommon to hit a multiple of your round bet by just aligning three small winning symbols from left to right on a payline. That's why fruit machines are especially suitable for high-stakes players or those who enjoy using a gamble feature like the risk ladder or the card gamble on Merkur slot machines. So if you're someone who plays with larger bets or likes to take advantage of these additional features, fruit machines are definitely worth considering.

In American online casinos, you'll find a wide range of virtual slot machines that closely resemble the traditional reel slots and one-armed bandits found in brick-and-mortar casinos. These slots are a favorite among seasoned gamblers who are familiar with these gaming machines from Irish arcades or visits to Las Vegas. Experienced players truly feel at home when playing these slots.

Most of the time, slot machines and reel slot machines in casinos offer three or five reels with relatively few paylines and typical casino symbols. Various fruits, bar symbols, sevens, bells, coins, or an X are the images that rotate on the reels of these casino slot machines. The symbols differ in their value. Sometimes there are also bonus symbols that trigger free spins or can award jackpot wins.

The latest generation of online slot machines is represented by the so-called Adventure Slots. While real money gaming is still at the forefront here, the slot machines in this new genre have a background story that unfolds throughout the game. It's almost like playing a real video game, and in order to follow the progress of the story, you have to keep playing and complete certain slot machine missions. These online slots are level-based video slot machines that often become more lucrative the longer you play at a particular slot. So, it's all about immersing yourself in the adventure and unlocking greater rewards as you delve deeper into the game.

I want to talk about the exciting world of adventure slots in online casinos. These slots take popular games like Thunderstruck 2 by Microgaming or Spamalot by Playtech to a whole new level. Instead of simply spinning the reels and hoping for a big win, adventure slots introduce a captivating storyline. You'll have to complete a certain number of free spin rounds to unlock new, more lucrative bonus games. It's like embarking on a thrilling quest within the game itself. The beauty of adventure slots is that they keep you engaged for weeks on end. You'll find yourself playing for hours, eagerly anticipating the next chapter of the story. Some of these slots even offer amazing rewards at the end, like a special prize or lifetime access to exceptionally lucrative bonus games. Imagine the excitement of reaching the end of the adventure and receiving a fantastic surprise. So, if you're looking for a unique and immersive gaming experience, adventure slots are definitely worth a try. Get ready to embark on an unforgettable journey filled with thrilling gameplay, captivating storylines, and the potential for incredible rewards. Don't miss out on the chance to unlock the secrets of these extraordinary online slot games. Start playing today and see where the adventure takes you!

Progressive jackpot slot machines are available in every online casino and offer huge main prizes, often totaling several million euros. The jackpot slots from a specific manufacturer are interconnected across all partner casinos of the developer. The wagers of all players, regardless of which online casino they are playing in, contribute a certain portion to the jackpot. Once the jackpot is hit, it is reset to a predetermined amount and then starts growing again.

Most of the time, progressive slots refer to video slot machines that have a specific jackpot symbol or a special jackpot bonus round. The jackpot bonus games can be won either randomly or through a specific event. The winnings on progressive jackpot machines are very enticing, but these slots often have the lowest payout percentages of all types of slot machines, which is why it's important to approach these slot games with caution.

At supremecasinocity.com, you'll discover a wide range of slot games, which you can try out for free and without registration. Once you're ready to play for real money at a legitimate online casino, we not only provide recommendations for the best online slot machine casinos in Ireland, but also offer numerous helpful guides and tips on how to enhance your success when playing slot machines on the internet.