The Multi-Coin/Multi-Line slot machines offer numerous pay-lines across multiple reels, increasing the chances of a winning combination. This type allows players to bet on multiple lines simultaneously, a concept that became popular in the 1990s. Examples include ‘Cleopatra’ and ‘Wheel of Fortune’. Statistics show that these machines can offer higher engagement due to the increased action.

The number of ways you can win on Multi-Line slots depends on the specific game and its configuration. Multi-Line slots typically feature multiple paylines, which can range from as few as 5 or 10 to as many as 100 or more in some modern video slots. The “ways to win” in these games refer to the different combinations of symbols that result in a payout.

In traditional Multi-Line slots, paylines are usually straight lines that can run horizontally, vertically, or diagonally across the reels. However, some modern slots feature “all-ways” or “win-both-ways” pay structures, which can significantly increase the number of winning combinations.

For example:

  • A 5-reel slot with 3 rows and 20 fixed paylines offers 20 different ways to win.
  • A 5-reel slot with 243 ways to win does not rely on traditional paylines. Instead, any combination of matching symbols from left to right, starting from the first reel, constitutes a win. This is calculated by multiplying the number of positions on each reel (e.g., 3x3x3x3x3 for a typical 5×3 slot, resulting in 243).
  • More complex configurations, such as 1024 ways to win, typically occur in slots with a 5×4 grid. This is calculated similarly (e.g., 4x4x4x4x4 = 1024).
  • Some slots offer even more ways to win, such as 3125 (5x5x5x5x5) for a 5-reel slot with five symbols on each reel.

The exact number of ways you can win will be defined in the slot game’s rules or information section. It’s important to note that while more ways to win can increase your chances of hitting a winning combination, it doesn’t necessarily increase your overall odds of winning; payouts and hit frequencies are also influenced by the game’s volatility and RTP (Return to Player) rate.


Buy-A-Pays slot machines feature multiple pay tables. Players can increase their winning combinations by inserting additional coins. Each coin played activates a different set of winners. An example is ‘Sizzling Sevens’. Statistics indicate these machines require careful bankroll management due to the variable payout structure.

Hidden Buy-A-Pays

These are a variation of Buy-A-Pays where additional features or paylines are unlocked with more coins. They can be less transparent, hence the ‘hidden’ aspect. Games like ‘Jackpot Party’ serve as examples. They are less common but offer unique gameplay experiences.

Straight Multipliers

Straight Multipliers allow players to bet one or more coins without affecting the payout ratio. Each additional coin multiplies the winnings. ‘Double Diamond’ is a notable example. These machines are praised for their simplicity and straightforwardness.

Bonus Multipliers

Similar to Straight Multipliers, Bonus Multipliers offer larger jackpots when the maximum number of coins is played. For example, if a single coin wins 100 coins, two might win 200, but three could win 500. ‘Triple Diamond’ illustrates this type. They encourage playing maximum coins.

Progressive Slots

Progressive slots are linked machines with a collective jackpot that grows with each bet. They can be standalone, local, or wide-area network progressives. ‘Mega Moolah’ and ‘Megabucks’ are famous examples. The chance of winning huge jackpots attracts many players, though the odds are lower.

Combination Slots

Combination Slots blend elements from various slot types, offering a diverse gaming experience. They might combine features from Multi-Line, Buy-A-Pays, and Multipliers. ‘Wheel of Fortune Triple Extreme Spin’ fits into this category. They cater to players looking for varied gameplay.

Three-Reel Slots

The traditional slot model, Three-Reel Slots, are simpler and easier to understand. They are based on the original mechanical machines and usually have a single payline. ‘Bar Bar Black Sheep’ is an example. They are known for their nostalgic value and straightforward mechanics.

Five-Reel Slots

Five-Reel Slots, or video slots, are the most common nowadays, offering more symbols, paylines, and winning combinations than Three-Reel Slots. Examples include ‘Gonzo’s Quest’ and ‘Avalon II’. They often come with detailed themes, bonus rounds, and enhanced graphics.

Six and Seven-Reel Slots

Expanding the traditional layout, Six and Seven-Reel Slots offer a larger grid and more winning possibilities. They can feature hundreds of paylines and complex bonus structures. ‘Raging Rhino’ (six reels) and ‘Game of Thrones’ (seven reels) showcase this format. They are less common but growing in popularity.

Interactive Slots

Interactive Slots, or i-Slots, revolutionize the concept by integrating storylines, mini-games, and player choices into the slot experience. Games like ‘As the Reels Turn’ offer evolving narratives. They are noted for their immersive qualities and depth of engagement.

Virtual Reality Slots and Casino Games

Virtual Reality (VR) slots are an emerging trend in the online casino industry, offering players an immersive gaming experience – (if they have the tech required to play).

Top VR casino games in 2024 include:

  1. Gonzo’s Quest VR: One of the most popular slot games, Gonzo’s Quest, has been adapted into a VR version. Players can join the Spanish conquistador Gonzo in his quest for the lost city of gold, experiencing the jungle and falling blocks in a whole new way.
  2. Jack and the Beanstalk VR: This is another popular slot game that has received a VR makeover. Players can climb the beanstalk along with Jack and explore the giant’s sky-high castle in virtual reality.
  3. Starburst VR: A VR adaptation of the classic and widely loved Starburst slot, providing a vibrant and immersive space-themed experience.
  4. Miss Midas VR: This game brings the story of Miss Midas and her golden touch to life in a virtual environment, allowing players to experience the luxury and enchantment of her palace.
  5. Thunderstruck II VR: A Norse mythology-themed slot game that has been transformed into a VR experience, letting players engage with the gods in a more interactive manner.

Playing VR slots requires specific hardware and software to get the full virtual reality experience. Here’s what you typically need:

  1. VR Headset: This is the most crucial piece of equipment. Popular options include the Oculus Rift, HTC Vive, and Samsung Gear VR. These headsets provide the immersive visuals and sounds that make VR gaming so unique.
  2. Powerful PC or Gaming Console: VR gaming requires high processing power and graphics capabilities. For PC, this means a machine with a powerful GPU (like NVIDIA GTX 1060 or higher), a compatible CPU (such as Intel i5 or better), ample RAM (8GB or more), and sufficient USB ports. For consoles, PlayStation VR is an option that works with the PlayStation console.
  3. VR Casino Software or App: You’ll need to download and install the software from the VR casino or the specific game you want to play. Make sure it’s compatible with your VR headset.
  4. Controllers: While some VR headsets come with their own controllers, others may require separate purchase. These controllers allow you to interact with the game, place bets, and spin the reels in a more tactile and natural way.
  5. High-Speed Internet Connection: To play online VR slots, you’ll need a reliable and fast internet connection. This ensures the game runs smoothly and without delays, which is crucial for maintaining immersion.
  6. Space: Ensure you have enough physical space to safely move around (if the game requires movement). Some VR games can be played seated, but others might require standing up or moving your arms.

Virtual reality online poker is also a fun diversion for gamblers who prefer to interact with their opponents in 3d instead of gazing at a boring 2d representation of their tables. Nothing beats throwing a virtual tomato at the face of the player that just beat you in the last hand you played!

Historical Racing Slot Machines

Historical Racing machines, also known as Instant Racing, are a type of gambling machine that allows players to bet on replays of horse races. These machines blend elements of traditional slot machines with pari-mutuel betting associated with horse racing. They look and operate similarly to slot machines, which makes them popular among casino-goers who might not be familiar with horse racing.

Historical Racing machines were developed to support the horse racing industry, providing a new revenue stream. They were first introduced in the early 2000s. The idea was to revitalize racetracks that were losing patrons and revenue by integrating a form of gambling that could appeal to both traditional bettors and slot machine players. The outcomes of the bets are based on races that have already occurred, with identifying information removed to ensure the bettors cannot recognize the race and hence cannot know the outcome in advance.

Players bet on the outcome of these races without knowledge of the specifics (such as the names of the horses or the location of the race). The machines use archives of thousands of past races and apply a slot machine-like interface where the historical data determines the outcome of each spin. Players can review limited information about the horses’ past performances and make selections on what they think are the strongest contenders.

The odds and payouts are determined in the same way as they are in live horse racing, through a pari-mutuel pool. This means the players are betting against each other, not the house, which is a characteristic feature of pari-mutuel betting.

Related: Crash Casino Games

Falling into a bit of a gray-area (not a slot or a table game), the new game format taking the world of gambling is crash gambling – where the player places a wager and receives either a multiplier on their wager or loss of their bet if they don’t “jump out of a rocket-ship” on time (before it explodes!)

As these types of games offer return to player percentages of 97% to 92%, they may as well be considered slots!