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Play Free Slot Games Online

Casino slots have become a favorite for many players. Try it for free and find your best slot.

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Book of Dead

Play'n GO

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Rise of Olympus

Play'n GO

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Reactoonz 2

Play'n GO

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Dead or Alive 2

NetEnt

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Esqueleto Explosivo 2

Thunderkick

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Mega Moolah

Microgaming

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Book of Ra Deluxe

Novomatic

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Narcos

NetEnt

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Spartacus Megaways

WMS

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Reactoonz

Play'n GO

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The Wild Chase

Quickspin

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Queen of Alexandria WoWPot

Microgaming

Why to try free slots at CasinoPreference

The CasinoPreference team has experts in various fields. We have formed a team that analyzes and obtains as much information as possible for a specific game. This way you are informed about all the details and specifics.

Detailed description of the slot

Screenshots, video, winning symbols of slot

Free play available for all devices

Find the casino where you can play the game with available bonuses

Pros

Cons

  • Completely Free. No deposit.
  • Risk-free. You can play and restart.
  • No registrations.
  • Support for all devices.
  • You find your slot.
  • No real winnings.
  • You don't get the thrill of earning with demo money

Slot Machine

Building a slot machine

Slot games are basically divided into three different categories. There are the classic slot machines, the video slots and the 3D video slots. In addition, there are the progressive slot machines, which have a progressive jackpot. Such can have a classic structure or the structure of a video slot. For this reason, this designation is merely a kind of a subcategory. Most slot machines have certain extra features called “features”.

In the development of new slot machines, error-free function plays a major role in the first place. However, this is one of the basics without which a slot machine game cannot be allowed. Other factors play a role in the popularity of the soldiers of fortune. For example, the theme design should be appealing. The graphic properties of the game are strictly connected with the theme design. New games feature high-quality graphics, eye-pleasing animations, and professionally-tuned sound elements.

Types of slot machines

A classic slot machine is modeled after a physical machine with real, mechanically spinning reels. There are hardly any highlights in terms of graphics or animations. Well thought-out classic slot machines can have a very varied game system or even a progressive jackpot.

  1. Classic slots
    A classic slot machine is modeled after a physical machine with real, mechanically spinning reels. There are hardly any highlights in terms of graphics or animations. Well thought-out classic slot machines can have a very varied game system or even a progressive jackpot.
  2. Video slots
    In a video slot, the mechanically spinning reels have been replaced by a screen. On this screen, the reels can be imitated and additional special effects can be added. From a video slot you can expect a whole range of special functions, such as free spins or win multipliers.
  3. 3D Video Slots
    The 3D video slots are a further development that promise many highlights and more variety in the gameplay in contrast to the usual video slots. First of all, a 3D video slot has the finest graphics and partly lifelike animations that put the player in the middle of the game in one fell swoop. Furthermore, a 3D video slot convinces with a variety of features. There are sometimes alternating locations that can be earned in the course of the game, a continuous story and many other extras.

Popular features in slot machines

A slot machine can be equipped with different special functions. These can be individual or common features. The most commonly used special functions are as follows:

  1. Wild icon
    The wild symbol acts as a joker in slot games and can substitute for other symbols. There are different special types of wilds. For example, expanding wild symbols that cover the entire reel are very popular. Additionally there are sticking, cloning or splitting wild symbols and many more variations.
  2. Scatter Symbol
    A scatter symbol is a symbol that does not have to be arranged in a specific pattern. Once the Scatter appears in a certain number on the play set, the character’s functions are unlocked. In most cases, a scatter symbol can result in scatter wins that are applied to the total bet and not just a line bet. In many slots, the free spins feature can be activated by the scatter symbol.
  3. Free Spins
    The free spins that can be won on a slot amount to free spins. Most of the time you get improved conditions during these spins, such as win multipliers or additional chances of winning.
  4. Bonus Rounds
    Many slots have a small bonus game that is different from the base game. No bets have to be placed in the bonus game and you can only win. The bonus game is often a click-it feature where you can choose an item.
  5. Multipliers
    Win multipliers are a very popular feature among players. Earned winnings can be multiplied with a multiplier.
  6. Jackpot
    A jackpot is a maximum win that can be won on a slot machine. There are also progressive jackpots that grow worldwide with every bet and can be triggered in one fell swoop.

Best progressive bonus slots

Providers often delight players with interesting innovations. They relate to different components of the gameplay. One of them is the principle of activating bonus features. Slots with a cumulative bonus allow the user to get closer to the launch of this option by repeating certain situations or actions. This motivates you to play longer and makes the gameplay brighter.

Many of these innovations are related to quite interesting and entertaining ideas. Some games even take it to the next level by making the games and their bonuses into a true adventure. A world map as if you were playing a computer game, building castles, raising the level of a character are just a few of the interesting and innovative ideas of the developers.

Best Bonuses

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History of slots

At one time, slot machines very quickly won recognition in gaming centers and casinos around the world, because, unlike the same table games, in slot machines the player sets the pace of the game himself, no special skills are required from the players, and absolutely everything depends solely on luck and old Fortuna.

Interestingly, the original American term “slot machine” was used to refer to both vending and slot machines (a slot is a slot for accepting coins). Both gaming and vending machines had identical slots. But later, the term “slot machine” was assigned to those machines that, in exchange for a coin, did not provide goods, but made it possible to play any game. But progress does not stand still. Now you don’t need any coins, and slot machines – which you can play for free all day long, are available to all of us on the Internet.

The history of slot machines dates back to 1884-88. (according to various sources) when the German-American Charles Fay (1862-1944) created his first slot machine in his auto repair shop, which worked from 5-cent coins. The maximum win of the first slot machine was 10 coins of 5 cents – only half a dollar.

August Charles Fey (1862-1944) was the sixteenth and last child in the family of a village teacher from Bavaria.

A passion for mechanics was discovered in a boy at the age of 14, when he joined a farm equipment factory as a worker. Bavarian youths often fell into the German army and, in order to avoid this fate, fifteen-year-old August decided to go to New Jersey.

In the late 1890s, games began to appear that are very similar to modern slot machines. These were machines with drums that had cards on them, or a machine with a huge wheel on which many colors were applied. The meaning of all games was to guess the card or color that will fall out after spinning the reels or the wheel.

In the 1890s, C. Fey worked together with Theodor Holtz and Gustav Schulz, one of the most famous manufacturers of slot machines at that time. In 1893, Schulz created the HORSESHOES, the first 1-reel machine with a cash win counter and cash payout. In 1894 C. Fei built a similar apparatus, and in 1895 he created his own “4-11-44”.

The success of this device was so significant that already in 1896 Fey allowed him to open his own factory for the production of such devices. When in 1898 the decree on the legalization of machines with the payment of winnings in cash was issued, C. Fey tried to build a poker machine with a counter and the payment of cash winnings. The main difficulty was recognizing the cards on the reels and making it possible to accept and pay out winnings both in coins and in special “trade checks” tokens that were exchanged for cigars and drinks. In 1898, C. Fei managed to solve this problem, although poker turned out to be somewhat “truncated” – on 3 reels. The machine was called CARD BELL – the name “bell machine” for many decades has become a household name for all machines with three reels.

In 1899, Charles Fey changed his brainchild somewhat. Now the latter was dominated by the very popular patriotic symbol of Liberty Bell – the “bell of freedom”, which adorned the top panel of the machine.

Liberty Bell is a slot that consists of three reels, which are marked with: a horseshoe, a star, spades, diamonds, hearts and a bell. Only one line of characters was visible on the display. To place a bet, you need to insert a token or coin into a special slot. To start the game, you need to pull the lever.

The reels will start spinning. After the reels stop, a combination of symbols drops out. According to the table of winnings, the amount of winnings will be determined if a paid combination has fallen out.

Several Fey-designed slot machines have been installed in drinking establishments in San Francisco. Along with the first “one-armed bandits”, the first gamblers immediately appeared.

The success of the inventor and his apparatus did not give rest to envious people, so in 1905 a rather strange robbery took place in one of the salons on Powell Street in San Francisco. Only two things were stolen – a bartender’s apron and a Liberty Bell slot machine. As it turned out later, he was kidnapped by competitors – the Novelty company, which sent the “bandit” straight to its Chicago factory. Using the stolen machine gun as a model, the company in 1906 released its own model – Mills Liberty Bell. And soon, thanks to the fact that the factory of Charles Fey was almost completely destroyed during a strong earthquake in San Francisco in 1906, the hijacking company managed to gain a leading position in the market of gambling mechanical means. And it happened in just a few years.

From the early days of its existence, gaming devices have had to constantly defend their “right to life.” Numerous local and federal decrees and laws to ban slot machines were issued in the United States every year. As a result, machine owners had to resort to all sorts of tricks. For example, “Liberty Bell”, thanks to the addition of a special device, turned into a chewing gum vending machine.

Top Slots in United States of America United States of America country flag

✔️ Is playing a slot machine really random?

Yes. Both conventional and online slots give out combinations based on a random number generator – an algorithm that randomly selects reel sectors that fall out on each specific spin. A certain number is assigned to each sector – if the generator gives out this number, the corresponding sector drops out.

Thus, slot machines never work on a cyclic basis and, accordingly, there are no situations when the chances of winning increase dramatically. There can be exceptions to this rule only in illegal casinos. And why would the casinos themselves need it – they need to earn money, and the element of chance is perfect for this, since the player cannot apply any knowledge and skills.

✔️ Can casinos change the payout structure and do they do it?

It is easy to change the settings with a mechanism or algorithm – just change the weight of the drums or replace the chip. However, do not forget that all such changes must be documented, including the need to submit an appropriate report to the regulatory authorities, and this is not so easy.

Nevertheless, if earlier the payout percentage was determined only by the manufacturer of the slot machine, now the casino in some cases still makes the changes that we mentioned above.

✔️ What's the difference between second and third class slots?

Slots of the second class are part of a centralized computer system that determines the result of each bet. Slot machines of the third class are traditional slots, they are installed in most casinos in Las Vegas; wins in such slots are not related to the system in any way, so the player’s chances of winning are the same on every spin.

Each country has its own rules regarding the class of slots that can be installed in the casino.

✔️ Is there any secret to winning the jackpot?

No. As we already said in the answer to the first question, slots work exclusively on the basis of a random number generator, so no matter what all sorts of “specialists” tell you and no matter what you read in their books, affect the result of the game, including the payout jackpot, impossible.

✔️ Is it legal to own a slot machine?

In the countries of the European Union – as a rule, yes, but a lot depends on the specific country and on the type of slot machine.

✔️ Which slots have the highest chance of winning?

The simpler the slot, the more chances to win.

✔️ What is the highest denomination in slots?

The highest denomination of a loan (coin) that we came across is $1,000.