Comprehensive Guide to Slot Machine Varieties

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A comprehensive guide to slot machine varieties must cover a lot of ground. Top game designers add a huge number of fun and helpful features to online video slots. The latest land-based slot machines test new innovations each year, then release them to the public at the annual Global Gaming Expo and other industry conventions.

Today’s slots are only part of the story. Slot machines have a history dating back to the 19th Century. Classic slot machine designs were radically different, because the reels were mechanical. Any survey of slots must account for all the eras, while taking a look at the future of game design. Our complete guide to slots features and characteristics does all of that and more.




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Key Takeaways:

  • Classic slots used mechanical reels, had simpler themes, and much smaller jackpots.
  • Video slots use electronic software, have elaborate themes and artwork, and have jackpots ranging into the millions of dollars. Some use VR tech, 3D graphics, and much different winning combinations.
  • Today’s online slots borrow ideas from Las Vegas casinos’ slots rows and throwback ideas from vintage slots.

What are the different types of slot machines?

In this comprehensive guide to slot machine varieties, we’ll explore the diverse world of slot gaming. From classic slot machines with their timeless charm to modern video slots packed with features, we’ll cover it all. Dive into the world of progressive jackpots, discover unique slot machine characteristics, and explore their real-world applications. Whether you’re a seasoned player or a newcomer to the casino floor, this guide will provide you with a complete overview of the fascinating world of slot machine varieties.

Understanding Classic and Traditional Slots

Classic slot machines were mechanical. When Charles Fey built the first slot machine in 1894, the Liberty Bell was a machine. Its three reels were mechanical. The reel symbols were painted on the device.

This limited the design of slots. The game was limited to three reels. The reels were limited to 10 or 15 symbols. This limited the winning combinations, which limited the jackpot sized. Progressive jackpots were not possible. Classic slots thus had flat-top jackpots.

The classic slot machine era lasted from 1894 until the late 1970s. That’s when IGT created the first electronic slot machines.

Classic Slot Machines vs. Modern Video Slots

Modern video slots use graphics on electronic screens and random number generators to produce results. They also have automatic bill validators and slots cards to track play. Spins happen faster, while players can opt for the auto-play feature.

Classic slots used mechanical reels and coin dispensers. These machines did not use RNGs, so matching reel symbols were the result of mechanical processes. This limited the reel symbols, which in turn limited the size of jackpots.

Many other differences exist between classic slots and video slots. Classic slot machines had much simpler themes, while the reel symbols included fruit symbols, liberty bells, bars, numbers (777), and other simple icons. Video slots have a wide variety of themes, while virtually any symbol can appear on the reels.

Key Features of Classic Slot Machines

Classic slot machines hold a charm for many slot players. These games have mechanical reels. For this reason, classic slots tend to have 3 reels, though a handful of 4-reel slots hit the market over the years.

Players used real coins to play mechanical slots. For that reason, people devised many ways to beat the classic slots. The zig-zag method was a common scheme, which involved scouring the casino to find slots with reels that appeared to be lining up. Slot cheats used shaved coins, fake coins, yo-yos, and piano wire to cheat the mechanical slots.

The amount spent and the amount paid out were smaller compared to 21st Century slots. For that reason, slots row didn’t generate 60% to 70% of casino revenues that they do today. Everything was less ambitious and less glitzy. Currently, people can buy vintage slot machines on Ebay and other online auction sites. Players can spot classic slot machines by the fact they are mechanical.

Popular Classic Slot Titles

Classic slot machines ruled the casino floors for 80 years, so any list of classic slot titles is going to be incomplete. Charles Fey created the Liberty Bell in the 1890s, then created the Card Bell slot machine in the 1900s. It was the first machine which automatically paid out when someone won.

In the early decades of the 20th Century, Charles Fey facsed competition from Mills Bros., Caille Bros, Watling, Clawson, Illinois, and Schutze. Mills designed the Brownie Counter Wheel circa 1900, while Jennings created the Dutch Boy Slot Machine.

In 1927, the Caille Brothers released the popular Shamrock Slot Machines. O.D. Jennings had success with the Silver Club Sports game in the 1930s and 1940s. Watling had the Rol-a-Top Slot Machine, while Jennings had the Red Skin slot machine. Mills Brothers produced Cherry Falls in 1945, about the time Jennings created the Bronze Chief Triple Bell slot machine. By the 1950s, Jennings had the Export Chief and Nevada Club’s slot machines. Aristocrat Arcadian released the Old Reno ’49 poker machine in the 1960s.

By the 1970s, Aristocrat had games like Moneytree, Regal Super 22, and Honey Bee. Bally produced Golden Nugget Nickel Slots, as well asthe Lucky Sevens Slot Machine. Each of these machines had their heyday, but the popular titles fell by the wayside when IGT introduced electronic slot machines.

The Evolution of 3-Reel Slots

Three-reel classics have not disappeared. When people walk into a casino, they’ll find 3-reel spinners or 3-reel classics. These games are electronic slots. They have excellent graphics and sounds, and might even have multiple paylines (though the winning combinations are usually lesser in number).

Designers create 3-reel classics to mimic the old mechanical slot machines in many ways. They tend to have a fixed jackpot, and these jackpots tend to be smaller. They also have a higher return-to-player (RTP) percentage, which means the big jackpot hits more often. Often, they have simpler themes.

Reels symbols might be stars and bars, cherries and other fruit symbols, or simple numbers. Some players love 3-reel slots because of the lower variance or the simpler themes. They aren’t as popular as the next slot type, but they aren’t going away anytime soon.

Exploring Modern Video Slots

When IGT introduced electronic slot machines, it revolutionized the game. Electronic gaming machines (EGMs) could have more than three reels. Because video reels were produced electronically, they could have many more symbols. Multiple paylines were easier to produce.

The size of jackpots soared. Eventually, IGT used the technology to create progressive jackpots. This made slots row a lot more interesting for many players. It gave people the chance to win life-altering jackpots.

It also changed the aesthetics of slot machines. Electronic slots became more like the video games of the time. They had better sounds and graphics, brighter lights, and more varied themes. Everything was beamed to a video screen, which is why electronic slot machines became known as video slots.

The Fascinating World of 5-Reel Slots

The most common video slot game is the 5-reel slot. These became the standard in the years after gaming machines went from mechanical to electronic. Designers add two more reels, which increased the winning combinations. More reels and more symbols on each reel opened the door to huge jackpots.

At the same time, the electronic design allowed for better graphics and more features. Therefore, players equate 5-reel slots with bigger jackpots, better graphics, and a ton of gaming features. When we talk about features, we’re talking about wild symbols, scatter symbols, multipliers, and bonus games. The list of features goes well beyond this, with each feature having many varities (expanded wilds, cascading wilds, etc.)

How Paylines on 5-Reel Slots Work

Another aspect of 5-reel slots is the proliferation of paylines. The original slot machines had one payline. Developers later added 3 paylines, then 9 paylines, and so on. These days, certain slots boast 50 paylines or 100 paylines or more. It’s common to see 20, 25, or 30 payline slots.

This gives players many chances to win on a given spin, which instills a sense of action and accomplishment. Some players dislike games with dozens of paylines, because it creates a false sense of winning because they collected $0.20 on a $5.00 bet. But multi-paylines slots are the most popular games in the casino.

MegaWays Slots: A New Era of Slot Gaming

Eventually, designers built slot machines without paylines. Aristocrat innovated with the “243 ways to win” games. Aristocrat slots (or pokies) like 5 Dragons, Red Baron, Dragon Emperor, Goblin’s Gold, and Choy Sun Doa Slots all have the 243 ways to win rules. The winning combinations are not tied to a payline, but can appear in many non-linear patterns.

Other companies developed slots with the “ways to win” rules. A wave of games with 1,024 ways to win appeared. Mega Moolah: Absolootly Mad has 1,024. Its explanation of the ways-to-win concept says, “all wins pay in any position from left to right on adjacent reels, beginning with the leftmost reel.”

The numbers only increased. For instance, Big Buffalo Badlands has 4,096 ways to win. Eventually, this led to MegaWays Slots, which have tens of thousands of ways to win. Many of Buffalo Slots from companies copying Aristocrat are megaways games. You’ll find Megaways versions of Buffalo Mania, Buffalo Blitz, Buffalo Rising, Buffalo Power, Savage Buffalo Spirit, and Almighty Buffalo.

For instance, Buffalo Blitz Megaways from Playtech has 117,649 ways to win. Megaways Buffalo Rising from Blueprint Gaming has the same number of ways to win. The Megaways game mechanics lead to huge jackpots, but also multiple wins on any spin. These are often micro-wins, though.

3D Slots and Their Immersive Graphics

3D slots have the best graphics in the casino. Often, 3D graphics are part of the bonus mode. These include interactive bonus games with cinematic graphics. 3D slots also have introductions that are like the cut scenes in video games.

Beyond the graphics, 3D slots have the same paylines, jackpots, and bonus features that other games have. The first set of 3D slots had bad odds, but it’s all the same these days.

Branded Slots: Themed Slot Machine Experience

Branded slots are also known as licensed slots. This is where a pop culture franchise licenses its intellectual property to a slot designer. The slot designer creates a game based on a popular movie, sitcom, TV drama, game show, reality TV show, comic book, or musical act. Branded slots can licensed the intellectual property of anything that’s in the pop culture.

The list of branded slots is legion. You’ll find slots based on I Love Lucy, The Honeymooners, The Beverly Hillbillies, Narcos, Sex In the City, The Big Bang Theory, Game of Thrones, or Seinfeld. Popular movies like Goonies, Bridesmaids, Rocky, or The Avengers have their own branded slots.

Famous musicians like Michael Jackson and Elvis Presley have branded slots. So do bands like Motley Crue, Guns’N Roses, Kiss, Def Leppard, Dio, ZZ Top, and Alice Cooper. Athletes like Diego Maradona have branded slots, while video games like Space Invaders have them, too.

Pop culture icons like Marilyn Monroe and James Dean have branded slots, while famous brands like Playboy Magazine have them. Popular game shows like The Price Is Right, Family Feud, Jeopardy!, and The Wheel of Fortune have them. The list goes on and on.

Cascading Reels Slots: A Different Spin on Gameplay

Cascading reel slots are another top feature. Tumbling reel games are tied to wild symbols, but with a twist. Typically, a wild symbol substitutes for any other symbol on the reel — except the scatter symbol. The wild feature fulls out a lot of paylines that otherwise would be one symbol short. These extra winning combinations makes the game much more dynamic.

Game designers have devised many special wild symbols: stacked wilds, bursting wilds, sticky wilds, cascading wild symbols, and more. When a cascading wild symbol appears, it flows down that reel to fill up the entire reel with wilds.

Cascading reel slots make it more likely that winning combinations happen. When a payline hits, the winning symbols cascade or tumble down the reel. Usually, the bonus game continues.

Cluster Pays Slots: Innovative Win Mechanics

Cluster pay slots are another alternative to paylines. For a cluster pay to hit, the same icons must cluster on the reel. That means one icon in the center, then four of the same icon on the four adjacent spaces on the reels.

Players will encounter several types of cluster pays. NetEnt has avalanche clusters pay slots, where the clusters tumble down the reel (cascading reels). Big Time Gaming has megacluster pay slots. These games have much bigger grids, so the bonus game has more chances to win (through clustering).

Random wilds are another way to handle cluster payouts. Instead of hitting in a cluster, a certain number of wild symbols must appear anywhere on the reel. These happen about once every 100 spins. RTG makes good use of random wilds in its Reel-Series Slots.

Grid Slots: A Unique Slot Grid Experience

Grid slots are yet another alternative to paylines. In many ways, grid slots are comparable to cluster pay slots, but they have matching clusters that connection in several different directions. Play’N Go makes good use of grid slots in their game designs. Several of their most popular slot franchises use the concept.

Here is a list of grid slots from Play’N Go:

  • Energoonz
  • Reactoonz
  • Reactoonz 2
  • Gigantoonz
  • Gargantoonz
  • Dr. Toonz
  • Lordi Reel Monster
  • Twisted Sister
  • Viking Runecraft
  • Viking Runecraft 100
  • Honey Rush
  • Honey Rush 100
  • Hugo Legacy
  • Sweet Alchemy 100
  • Sweet Alchemy 2
  • Rise of Olympus 100
  • Moon Princess
  • Moon Princess 100
  • Sparky & Shortz Hidden Joules
  • Rich Wilde and the Tome of Madness
  • Cash of Comman
  • Animal Madness
  • Rotiki
  • Legends of the Ice Dragon
  • Charlie Chance and the Curse of Cleopatra
  • Tales of Asgard: Loki’s Fortune
  • Odin: Protector of Realms
  • Sisters of the Sun
  • Agent of Hearts
  • Golden Ticket
  • Troll Hunters
  • Cloud Quest
  • Gemix
  • Queen’s Day Tilt
  • Contact
  • Mahjong 88

The World of Progressive Jackpot Slots

Nowadays, most slot producers have their own progressive jackpots. In the early days, IGT led the way. Games like Wheel of Fortune became world-famous because they offered progressive jackpots. Later, IGT introduced MegaBucks as the largest progressive slot prize in the world.

All accumulated slots don’t have a fixed jackpot, so the pot can rise to any number. None of them have a set time that they hit. All have no upward theoretical limit. But all progressive slots’ winning combinations are based on probability. Games like MegaBucks are much more likely to grow into huge jackpots than other games. It’s worked, because MegaBucks owns the ten largest slot prizes in history.

Wide-area networked slots grow at a much faster rate. Games like MegaBucks therefore can have much lower chances of hitting — much like Powerball or Mega Millions jackpot — and still grow at a fast rate. Networked slots connect many MegaBucks slot machines to one another, so they share the same jackpot. The same goes for Wheel of Fortune and other large progressive slots.

Understanding Progressive Jackpot Mechanics

Progressive jackpot mechanics work much like the Powerball and Mega Millions lottery drawings. Each involves an accumulated jackpot. Each time a person makes a qualifying bet and doesn’t win the grand prize, a percentage of their bet adds to the pot.

When a player makes a bet on a progressive slots and doesn’t win the progressive, the pot grows. This continues until one lucky player hits the winning combination. When they do, that player wins the progressive jackpot and the pot resets. It might reset at $50,000, $100 thousand, or $1 million — depending on the rules of the game.

The prize has no theoretical upward limit. It might build from $50,000 to $100,000 and trigger. Or it might build from $50,000 to $22,000,000 before a lucky player wins the prize. In general, big progressive slots like Mega Moolah or WowPot start at a high prize amount. Also, the pot on those games grow faster because many slot machines (or online slots casinos) are networked. Many games build the pot at the same time.

Notable Progressive Jackpot Winners

Most progressive jackpot winners remain anonymous. Despite that, we learn about new record breakers several times a year. The biggest land-based progressive jackpot triggered in 2003 at the Excalibur Casino in Las Vegas. The prize amount was $39.7 million, which went to an anonymous software engineer from Los Angeles. The second largest went to Cynthia Jay-Brennan, a cocktail waitress who won $34.9 million on the MegaBucks Slots at the Desert Inn Casino.

Third place goes to an anonymous player at Palace Station Resort in 1998. The player won $27.5 million on MegaBucks. She won another $680,000 on Wheel of Fortune a few months earlier at Palace Station again.

In 2002, Johanna Heundl won $22.6 million on MegaBucks at Bally’s Casino, which ranks as the sixth-largest land-based jackpot ever. Tyler Niknam won the #7 jackpot. Nikham, better known by his streaming name, TrainwrecksTV, won $22.5 million while playing Might of Ra in 2020. He was playing for $1,000 a spin.

The largest online progressive jackpot hit on December 20, 2023. The online slot was WowPot Mega and the jackpot was over $42 million. Seven of the top ten online slot jackpots are on Mega Moolah Mega Slots. The payouts range from $13 million to $21 million. The winners played on sites like Napoleon Casino, Grand Mondial, Zodiac Casino, Betway, and Lucky Casino.

The #5 jackpot was on Mega Fortune Mega on Paf Casino on January 20, 2013, while the #6 jackpot was on WowPot Mega on April 12, 2021 on 32 Red Casino.

Most Popular Progressive Jackpot Games

The most popular progressive jackpot game is MegaBucks, the popular Nevada-bases slot machine from IGT. MegaBucks is a wide-area networked progressive jackpot slot, so the accumulated jackpot includes many MegaBucks machines and builds quickly to a huge pot.

Wheel of Fortune is the most popular progressive jackpot game of all time. Though it doesn’t hold the record for the largest jackpots, it’s the most widespread progressive slot in the world. The combintion of life-changing jackpots and the Wheel of Fortune branded slots theme makes it stand out in any brick-and-mortar casino. It’s found in casinos worldwide.

As noted above, the most popular online progressive jackpot games are Mega Moolah, WowPot Mega, Mega Fortune Mega, Might of Ra, and Jackpot Giant.

Features and Characteristics of Slot Machines

Slot machine features are a huge part of their draw. Anytime someone advertises a slot game, they list the number of reels and paylines. They list the theme, but also its many features. These draw players to the game.

Multipliers, free spins, bonus games, wild symbols, and scatter symbols are examples of game features. That’s just a few examples. The 50/50 feature and autoplay feature are common, too. So are 3D graphics, VR tech, all-ways payouts, and buy-a-pay feature. The list goes on an on.

Slot machine characteristics are also important. For instance, is a slot machine for high rollers? Is it for penny players? Does it have huge progressive jackpot? A smaller, more realistic fixed jackpot? Or does it have a random progressive jackpot, which is somewhere in-between? What is it’s return-to-player (RTP)?

These are important parts of evaluating whether players enjoy a game or not. Let’s look at key features and characteristics of slot games, including one type of game that’s very popular in the United Kingdom.

Exploring Fruit Machines and Their Appeal

It should be dawning on readers that slot machines comprise a huge variety of games. Fruit machines are one such example. Fruit machines are popular in the pubs and taverns in the United Kingdom. The reel symbols on these games tend to be fruit symbols, which led British gamblers to calling them fruit machines.

As a rule, fruit machines have fixed jackpots with more attainable top prizes. The payback percentage varies wildly. Pub goers don’t have that many gaming options, so the house edge can be high. At the same time, players can visit UK land-based casinos, so competition is there in a broader sense.

One other note: other countries have their own names for slot machines. In Australia and New Zealand, they are called poker machines. Most often, the locals shorten the name to “pokies”. If you hear someone talking about pokies, they’re simply talking about slot machines. It’s the same as with fruit machines.

Penny Slots: Affordable Slot Machine Gaming

Game developers build slots for all types of gamblers. Most slot players are not high rollers, so they gravitate to penny slots. These gaming machines have many coin denominations, which often start at a penny bet per payline.

Playing the penny slots doesn’t mean you’re betting a penny on each spin. Since players want a shot at the top jackpot, they must bet the maximum paylines to activate the top prize. If you play a penny slot with 20 paylines, then you’re betting 20 cents per spin.

High Limit Slots for High-Stakes Players

The most famous brick-and-mortar casinos also have high limit slots. These machines often sit in a room or section of the casino away from the main slots row. High rollers want a little peace and quiet away from the plebeians, while casino management wants to know where their highest value customers are.

High limit slots often are $100 a payline or more. Casinos want to keep these gamblers playing, so the high limit slots have the best odds on slot row. The high limit and penny slots version of a game will have a much different return-to-player percentage. Also, those who play the high limit slots accumulate the most points in the slots club. In turn, they receive the best comps, cashback, and other rewards.

Virtual Reality Slots and Immersive Gaming

Many believe virtual reality slots are the future of slot machines. VR tech gives players an immersive user experience. It sets players down in a virtual reality game world set in the theme of the game. It’s like playing slots in a sensory deprivation system.

Most VR slot machines are found on brick-and-mortar casino floors. As VR tech becomes more widespread in everyday life, more online VR slots will appear. New startups like Belka VR have already developed VR slots for online gaming.

Virtual reality casinos are now a reality. Sites like Social Casino VR, Bullet Roulette VR, Blackjack Bailey VR, and Jackpot VR now accept real money play. As the technology improves, expect sites like these to become more mainstream. Pre-existing casino sites also will adopt VR casino games.

Multiplier Slots: Boosting Your Winnings

Licensing and 3D graphics are but two of many features that sell a game. When you see a slot game’s specifications, you’ll see a list of features. Many players consider multipliers as their number one favorite feature.

Multipliers do exactly what you would expect — they multiply the current payout. If you win 2,000 coins in a game with a 3x multiplier, you just won 6,000. Games with multipliers quickly pay out huge amounts with the player never having to win a jackpot.

Most games save the multiplier feature for its bonus games. Slots have standard play (the main game), but also have bonus games. Often, three or more scatter symbols must appear on the reels before the bonus game triggers.

Buy-a-Pay Slots: Unveiling Hidden Payouts

Buy-a-pay slots lets you unlock more winning symbols if you bet more coins. The basic buy-a-play gaming machine increases the jackpot when you use the max number of coins. Most progressive jackpot slots work this way.

Other rules might apply. Some buy-a-pay slots offer more multipliers (or bigger multipliers) when you increase the number of coins used. Some have higher payback percentage when you use the max coins.

In short, the best deal comes when you bet the maximum number of coins. Don’t play a buy-a-pay slot machine unless you’re willing to make the max bet.

All-Ways Slots: Maximizing Winning Opportunities

All-ways slots are another name for the rules spawnd by the original “243 ways to win” poker machines created by Aristocrat. Thus, they are linked to the MegaWays slots we discussed in great detail above.

For those who want to play all-way slots, here’s a small list of games according to the number of ways to win:

  • 243 Ways to Slots: Alaskan Fishing, 5 Dragons, Red Baron, Dragon Emperor, Goblin’s Gold, Choy Sun Doa, Burning Desire, The Dark Knight (Microgaming)
  • 1024 Ways to Win Slot Games: Hot Ink, Arctic Fortune
  • 3125 All-Way Slot Game: Dolphin Coast
  • 4096 Ways to Win Slot: Big Buffalo Badlands
  • 117,649 MegaWay Slots: Buffalo Blitz Megaways (Playtech), Megaways Buffalo Rising (Blueprint Gaming)

As you can see, you’ll find a huge variety of all-ways slots. The more winning combinations, the higher the fixed jackpot goes. For instance, the Dolphin Coast Slots jackpot is 7,500,000x the original bet.

Skill-Based Slot Machines and Player Interaction

Skill-based slot machines are another innovation on modern slots row. Millennials and Gen Z players grew up with online gaming and mobile smartphone games. These gaming options were based on video games, so they had a skill element.

The new generations of slot players prefer to play games with elements of skill. To keep up with demand, a number of companies have developed skill-based slot machines. These haven’t become mainstream yet, but developers expect skill slots to be the future of the slot machine industry with future generations.

Real-World Applications of Slot Machine Varieties

People can see the huge variety of slot machines. Game designers compete with each other for the most popular slot. They do so by finding a combination of themes, game features, bright lights, entertaining sounds, jackpots, and return-to-player percentages. The popular games make money for the casino and game design companies, but also entertain enough players to keep them coming back for more.

When a player walks into a casino, hundreds of slot machines compete for their attention. Each player has different tastes, so they’re attracted to different games. Maybe you like the game with the flashing lights and sirens. Maybe you prefer the game with a funnest theme, whether it’s a branded slot or a bizarre theme.

You might prefer the biggest jackpot. Or you might like the 3-reel classic that you know has a good payback percentage. Maybe you want to be in the bright center of things. Or maybe you prefer to be in a quiet corner of slows row. Or perhaps you’re a high roller who wants to be in the high stakes slots room.

Real-World Applications in Casino Gaming

Whatever the case, the idea is to draw your interest. The same applies in the online casino gaming industry. Gambling online is a little trickier, because the slots page only shows titles and a thumbnail. The cover art and game’s name therefore is hugely important.

That’s why the best online casinos feature slots bonuses and free spin bonuses that encourage players to try games. If you receive 20 free spins on the latest slot release, you might love the game and become a loyal customer. Or if you collect a $7,500 slots bonus, you might sample a dozen slot games and find a new favorite.

Online Slot Machine Varieties

Online slot machine designers take inspiration from the brick-and-mortar slot machine industry. To this day, most innovation happens in land-based casinos. Slot manufacturers like IGT, Bally, WMS, Konami, and Aristocrat introduce new trends into game design.

Once these prove popular in offline gaming dens, online slot games take the best ideas and translate them to iCasinos. Though they trail the land-based slots industry by a bit, players will find all the best features and game mechanics in the online industry.

3D slots and branded slots can be found in online casinos. Multi-payline games are mixed with all-ways slots, grid slots, and buy-a-pay slots. It’s all there, though you’ll need to find it. That’s why SlotsGuy offer so many site reviews and slot reviews. It’s a wild world of slots.

Mobile Slot Games and Accessibility

That includes mobile slots. In the 2020’s, more gamblers play mobile slot games than traditional desktop slots. Accessibility is a huge priority for online casinos. A few years ago, casino sites had mobile slot apps for Android and iOS devices. In fact, many spent time designing casino apps for Windows, Blackberry, and other mobile operating systems.

That’s not required now. Most US mobile casino operators use HTML5 technology to create browser-based slot games. Instead of downloading a mobile slot app, the games open in the web browser. This offers ultimate compatability, whether you use an Android smartphone, iPhone, iPad, or other brand tablet computer.

Accessibility means more than compatability. The games must work anywhere your device gets Wi-Fi. Since that’s often in public, mobile slot games must have world-class security encryption. SSL certificates and 128-bit encryption are necessary. Increasingly, 256-bit encryption is normal. So is blockchain payments for mobile phones, because Bitcoin and other cryptos protect your information better.

Incorporating Slot Machines in Casino Design

When you enter a casino with 2,000 or more slot machines, a lot goes into the design of slots row. Casino management wants to send the message that fun and winning can be had in their gaming space. They want the newest and best slot machines near the entrances, and they want you to follow the glitz to certain sections of the gaming floor.

Art design is a huge part of the draw. If people go to the trouble of visiting a casino, they want to see some they wouldn’t see at home or the movie theater. The mix of colors is important — for instance, slot designers have noticed that players are drawn to the color blue. Flashing jackpot amounts and excellent art designs draw the eye.

The game consoles are important. People want comfortable chairs and pleasant sounds, because they plan on being there for a while. They want modern touch screens. Game controls should be easy to use. Of course, paying for the next spin should be easy — and receiving payouts should be the same. All of those goes into slot machine designs — and casino layouts.

Conclusion and Future Trends

Millennials and Gen Z players don’t like the same type of games that Baby Boomers like. Expect skill-based slot machines to become a bigger part of the gaming landscape. Games of pure chance bore them. Younger players want games that remind them more of the video games and smartphone games they played as a child.

Land-based casinos will need to incorporate social gaming. Research shows that Gen Z players want to enjoy excursions with friends, so slot machines will incorporate multi-player experiences. In some cases, that might involve casino players interacting with their friends off-site. Slots tournaments and other events could become commonplace.

Expect to see mobile games become easier and more secure to use. Pocket-friendly online and mobile gaming will become more common. For those playing at home, expect VR technology to advance. Players will want better VR headsets for online casino games. Many land-based slots will have fully immersive VR consoles.

Of course, slot games will incorporate artificial intelligence into the user experience. AI will help personalize the game experience for the player. That means tailored games with personalized themes, bonuses, and other promotions. In few years, all of these trends should converge to make the future of slot machines more exciting and more rewarding than ever.

Slot Machine Variety FAQS

Is there a pattern to slot machines?

Modern slot machines are games of pure chance. They use a random number generator (RNG) to determine results. In the old days, casinos housed mechanical slot machines.

One could argue mechanical reels had a pattern and might align at times. That’s no longer the case. True RNGs mean there is no pattern. Even if there was, RNGs produce thousands of results per second. You could not discern any pattern if there was.

What is the 5 slot machine strategy?

With the 5-spin slot machine strategy, a player plays five spins on a particular machine. If no wins happen, the player moves on to the next slot. This doesn’t increase your chances of winning, but it does give you a better sense of the games in the casino.

What are the most profitable slot machines to play?

The most profitable slot machines are those with the highest return-to-player (RTP) ratio. We’ve given the best land-based slot games above. Let’s take a look at the best online slots. Mega Joker from NetEnt has a 99% RTP with a high volality. Blood Suckers from NetEnt has a 98% RTP with low volatility. Starmania from NextGen Gaming and White Rabbit Megaways from Big Time Gaming have RTPs of 97.86% and 97.72% respectively.

Big Bad Wolf from Quickspin, Apollo God of the Sun from Novomatic, and Gorilla Go Wilder from NextGen Gaming all have an RTP above 97%. Reel Rush from NetEnt has an RTP of 97% on the dot. Quick Hit Ultra Pays Eagle’s Peak from Big Time Gaming and Dead or Alive 2 from NetEnt have RTPs of 96.89% and 96.82% respectively.

Those are the best games you’ll find in online casinos right now.

Is there an algorithm for slot machines?

Yes, but this produces completely random gameplay. It is fruitless to guess at what the algorithm for slot machines will generate on any given spin.

Are there signs that a slot machine will hit?

No, not in slot machines in the 2020s. The reel positions are generated through computer graphics. They are not “lining up” as they once might have. Results are totally random, so don’t try to spot the patterns.

What triggers a jackpot on a slot machine?

A specific combination of symbols triggers the jackpot. If you’re playing a 50-payline slot, then the jackpot is a specific combination on the 50th payline. The winning combination is the rarest reel symbol configuration on the game.

Do slots pay more at night?

Casino management does not set slots to pay more at night. You’ll find more people hitting jackpots at night, because that’s when more people are in the casino playing.

Could you name some popular skill-based slot machine producers?

Next Gaming offers games like Asteroids, Tempest, Missile Command, Z-Force, Bust-a-Move Adventures, Arkanoid, Grumpy Cat, Sunken Fortunes, and Mayan Thunder. Scientific Games (SG) also has delved into skill-based slot machine. It devleoped Space Invaders, which is based on the 1978 arcade game.

Konami offers games like Beat Square (like Dance Dance Revolution) and Frogger: Get Hoppin’. IGT plans to introduce Little Fish Big Fish and Fuzzy’s Fortune, both of which are skill-based slots.

Does anyone produce skill-based slots outside of Las Vegas?

GameCo has produced skill-based slots for Atlantic City casinos, along with Foxwoods Casino and Mohegan Sun. You can play GameCo slots like Terminator: Judgment Day, Nothin’ But Net Basketball, and Steve Aoki’s Neon Dream at Tropicana Atlantic City. Other GameCo games include Soul Calibur II, Cosmic Candy Heist, and Poseidon’s Deep Sea Saga.

Who produces the Living Large skill-game?

Paceomatic produces skill games like Living Large, Amigos Locos, Pirates, Gem Master, Wildebeest Wild, Hi-Way 50’s Overhauled, Under the Mountain, Lady Periwinkle’s Curious Contraption, and Lucky Fruit. Players debate whether these games are skill-based slots or skill games, but you’ll find them in the same places.

Who produces the PacMan skill-based slots game in Las Vegas?

Gamblit’s TriStation gaming console has 15 different skill-based games. People can try PacMan Cash Chase, Deal or No Deal, Into The Dead, Playboy Pinball Casino, which are branded skill games. They also can try Cut The Rope, Doodle Jump, Lucky Words, Jetpack Joyride, and Catapult King.

Who produces Running Rich Racing and Star Striker?

Competitive Interactive has placed several skill-based gaming machines in Vegas casinos. Running Rich Racing and Star Striker are their two most successful games. Spectators can place bets on Running Rich Racing, while Star Striker is much like the 80’s arcade game, Galaga.

Another skill-based gaming machine startup players should know about is Synergy Blue. It designed games like Safari Match, Lucky Karts, Candy Patrol, and Squidwords.

What are the easiest slot machines to win on?

Reel Rush has the best odds at Caesars. Ozzy Osbourne’s Video Slot also has good odds, while Mega Moolah pays out well and has a 95% RTP. Thunderstruck II, Gonzo’s Quest, Jungle Jim, and Break Da Bank Again are good games to play at BetMGM. Twin Spin Deluxe is a good game at Borgata.

When should you cash out slots?

Cash out when you have a big win (not necessarily a jackpot). This locks in the winnings and assures you’ll walk out of the casino with a good feeling. According to slot bankroll management principles, this is called having a “win goal.” It’s similar to having a loss limit, though it applies to winning at slots.

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