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Slot machines can traces their roots back to 1891. Sittman and Pitt, a New York-based company, created a Poker machine that would line up Poker hands and offer rewards. These were popular in bars across the US and players would pay a nickel to play the game and could receive food, drinks and even cigars as rewards. The game used only 50 playing cards, which excludes the 10 of Spades and the Jack of Hearts to decrease the chances of getting a royal flush by 50%.
Charles Augustus Fey was the first to introduce the first actual slot machines around the same time. However, instead of cards he used symbols such as bells, diamonds, gems and so on. The machine also only featured three reels, much like the classic slots we see today. Since the highest payout was activated with the bell symbol, people referred to them as the Liberty Bell machines.
A few years later, the cash machines were banned in the US. However, the Liberty Bell slot machines were still produced. Instead of money, these machines would reward winners with sweets of various types. The symbols were of fruit, which would relate to the flavour of the sweet and the type.
In the decades to follow, slot machines went through a few major changes as the technology upgraded some aspects of the games and features. It wasn’t until 1964 that the first electric slot machines rolled out. These featured electronically spun reels, but still had the lever on the side to activate the game. In the mid to late 70’s, we saw the first introduction of the video slot, which used a 19-inch Sony television with modifications to fit the machine and provide the graphics.
In 1994, the first online slot machines made their way to the gaming industry. These required special software and the games didn’t offer much more than you’d find in land-based casinos at the time. In fact, the majority of games used three reels and standard symbols but rewarded in cash. Later on, software developers started including specialized graphics and special features to further enhance the games as technology became available.
Both land-based and online slot machines evolved in all possible ways over the last few years. They now feature life-like graphics and some developers would soon provide games with virtual reality as well. The future of slot machines is looking just as bright as their history, or even more so with new technology.
Online Slots Guide
Besides providing a great many of free online slots, SlotsUp take care of our visitors’ gambling erudition, so on our web-site you can get any info regarding casino slots and everything else: things like slot anatomy, types of slot games and their themes ( fruits, space odyssey, gothic – so on and so forth), and, what is actually the most important part – slot features. Why so important? The thing is that features help win the game. Every feature brings astonishing surprises and visual pleasure, depending on the slot theme. Sometimes outstanding video interludes occur when a certain feature activates. But you’re going to read about it a tiny bit later.
On every type, technology, theme or feature you will see a separate page at SlotsUp.com, dedicated to each subject. It will not only contain explanations of how things work or what the difference between the features is, but it will also list free online slot games exactly according to their type, theme, technology, feature etc.
It’s been years and years since the first online slot was created, and since those times, the number of slot types increased greatly. Every slot type will be available on SlotsUp, as well as the corresponding list on the dedicated info page. So far here’s a brief description of each slot type:
Online Slots (online pokies), also known as traditional 3-reel, one-armed, fruity, and bar bandit. The main idea is pretty much the same as it was years back in vintage slot machines you’ve first discovered in brick-and-mortar casinos.
Fruit Machines have various fruit symbols placed on 3 reels, featuring classic icons such as fruit, lucky 7s, bells, BARs, etc.
Video Slots are the result of technological and chronological progress that made classic slot machines go online. The primary difference was the video effects were then added to the gameplay.
3D Slots are the most interactive online slots featuring latest 3D graphic developments. They often present mini-events after each win and during each engagement.
Mobile Slots have been adjusted for portable devices. Usually, many features are compressed under the same tab to utilize the smaller screen space.
Slot types usually have subtypes:
Penny slots allow players to bet a minimum of 1 cent per line, thus becoming smallest investing slot type.
Progressive slots can be combined with most slot machine types. They accumulates a fraction of all deposits and have a random chance of turning the total into a winning jackpot.
243 Ways to Win calculates wins by 243 outcomes randomly across the screen instead of a set left to right paylines.
1024 Ways to Win calculates wins by 1024 outcomes randomly across the screen instead of a set left to right paylines.
3125 Ways to Win calculates wins by 3125 outcomes randomly across the screen instead of a set left to right paylines.
Free Spins are the spins that don’t require you to subtract funds from the remaining balance, but once they are successful, they add to coins to it. Enjoy the list of casino slots with free spins feature they can bring the biggest wins!
Respins in fact are costly, but the player usually gets to selects the reels for a respin. Thus, it’s an ability to respin some of the reels after the round is over in an attempt to complete a winning combination on a pay line.
Wild Symbols are the chameleon-like feature. Wilds change suits to any symbol that is required to complete a win on a line.
Sticky Wilds are the Wilds remaining in the same place for a set number of spins, and they acquire a suit of any symbol that is capable of creating a winning combination in the current line pattern.
Stacked Wilds are the random Wild Symbols appearing on one reel, and, hypothetically, they can cover it completely.
Expanding Wilds (wild reel) are separate wild symbols appearing on a reel and expanding to cover all the positions above and below the reel.
Cascadin g Wilds resemble the Tetris feature that is the disappearance of several Wilds located on top of one another. Other symbols replace the disappeared Wilds and can occasionally add missing icons to make a win out of a new combination.
Random Wilds usually kick into the game at random during the bonus rounds with Free Spins, on their way turning standard reels into Wilds.
Scatter Symbols can trigger bonuses. They appear randomly on the reels and create an immediate win if two (sometimes three) or more Scatters appear anywhere on the reels, without being a part of a winning payline or any logical order.
Gamble Feature is a guessing game where the gambler is offered to select either red or a black card suit for a chance of extra win.
Multipliers are symbols multiplying the winning sum for a certain number. They look like x2, x3, x5 and so on, often remaining for several rounds and not benefiting from max bet.
Bonus Rounds are the benefits activated by Scattered or other special symbols and can provide extra profit for the player. Typical examples: Free spins, Free Coins and Multipliers.
Bonus game inside a slot game gives an additional chance of profit to the player once a certain combination is rolled on the reels. These vary from guessing games to 1v1 combat and are limited only by the developers’ imagination.
Shifting Reels appear in every winning combination on a payline and add Wilds to the pattern to make more payline wins.
Click and Pick are granted within Free Spins and Bonus Rounds and can bring players an instant prize, where players click on a particular image to collect a mystery present.
Jackpot is the biggest prize a player can win from a single slot (Static Jackpot) or a network of slot machines (Progressive Jackpot).
Progressive Jackpot is the chance to become an instant millionaire. It’s a fraction of all players’ deposits from a slot or a network of slots accumulating into progressive funds that cashout entirely after a certain point.
Extra Symbols are additional symbols often granted to help make winning combinations and differentiate one slot from the other. There are extra base and extra special symbols (Wilds, Scatters etc).
Auto Play (Auto mode) enables you to automate your play with selected parameters without hitting “Spin” every time.
Nudge and Hold – “Nudge” allows to rotate a particular reel one space up or down to find the best payline combination while “Hold” permits to hold an entire reel still while the remaining reels are respinning.
When we look at the most popular slot machine games we find many of them are from different developers. Luckily, at Online Casino you have access to all the biggest game providers in the world. This includes NetEnt, Microgaming, Play n Go and many others. Therefore, once you find one of the most popular slot machine games, you can almost count on it forming part of our great selection of online slots. To provide additional guidance to those who are new to OnlineCasino, we have created a list of the top five slot machine games to help you get started. These are great to try as free games as they would give you an indication of the different game types available and what to expect.
Immortal Romance is one of the most popular slot machine games from the Microgaming team. It features a vampire theme that stacks loads of different bonus features and excellent reward opportunities. It also has the popular 243 ways to win set up over five reels and an incredibly high RTP of 97%. While playing, you can activate free spin bonus features with additional multipliers and even enjoy huge winnings with wild symbols during the standard game.
Reel Rush is yet another incredibly popular online slot as NetEnt has created a unique layout that activate combinations and features unlike any other slot machine games. It also has five reels, that includes a massive 3125 ways to win. However, this game has a special twist when it comes to creating combinations. Each time a win activates, you get a re-spin and more symbol positions become available. Not only does this make more combinations possible, but also leads you to a free spin feature we all the symbol positions are unlocked for incredibly big winnings.
As far as unique slot machine games go, you’ll find Finn and the Swirly Spins always appears among the top. This is yet another NetEnt creation that redesigns online slots as we know them. Instead of five reels, the game uses a swirl pattern to introduce new symbols. Combinations can activate from anywhere as long as three symbols appear in a line. There are also stacks of special bonus features that enhances your ability to create more combinations and activate bigger winnings. Of course, free spin features, wild symbols and many others also form part of the experience.
Butterfly Staxx is a great way to see what only slot developers such as NetEnt are capable of. At first, this might seem like just another five reels slot, but once you begin activating the bonus features, you’ll quickly discover that it is completely unique. One of the main features is the butterfly bonus that activates as soon as you get a single reel stacked with only butterflies. Not only do you receive a re-spin, but also see as the butterflies slide to the left most reel. If any additional butterflies appear with the re-spins, they to fly to the left and fill up the reels. The more you get, the bigger the combinations become and the higher your winnings will be.
Of course, we have to at least include one of the most popular classic slot machine games of all time. Break Da Bank is another great choice from the Microgaming team. It features a straightforward gaming experience without any special features. Instead, it focuses purely on massive payouts and creating combinations based on three reels.
Making your way through our massive free casino slots selection is sure to take you more than just a while. Especially when you consider that we add new games on a weekly basis from all of our developers. Therefore, it might be difficult to stay up to date with the latest opportunities, but luckily you can enjoy these free casino slots from anywhere at any time.
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When we look at individual games, we see a major difference as some land-based casino slots would offer RTP percentages of 85% while the majority of online casino slots deliver RTPs of 95%. In fact, some games such as Blood Suckers from NetEnt has an RTP of 98%, which you won’t find in land-based casinos.
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1. Break Da Bank
2. Joker Pro
3. Twin Spin
4. Fruit Mania
5. Mega Rise
1. Immortal Romance
2. Testament
3. Panther's Reign
4. Reel Rush 2
5. Leprechaun Riches
1. Mega Fortune
2. Mercy of the Gods
3. The Slotfather
4. Divine Fortune
5. Major Millions
Since we’re an online casino that never closes, you get to choose when it’s the best time to play slots online. We’ve taken the time to give you all the benefits of playing from anywhere at any time, which is why it’s up to you when it’s best. However, we can give you some tips to ensure you always play safe.
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If you have more questions about our free slot machines and how the demo slots work, feel free to get in touch. Our team is available 24 hours a day via live chat and email.
Q: Can I Play any Slot Online as freeslots?
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