There is already a huge amount of casino games, which can be played for cryptocurrency (dice, blackjack, poker, baccarat, sportsbetting and more), but the type of games with the most diversity of gameplay is no doubt slots.
In 2019, almost every reputable Bitcoin casino has slot games aboard. We prepared the list of crypto-casinos which offer the most profitable conditions and bonuses for those who want to play slots for cryptocurrency:
| Casino | Features | Welcome bonus |
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110% + 250 free spins (wager: 40x) VISIT |
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100% + 180 free spins (wager: 40x) VISIT |
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Best loyalty program VISIT |
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110% + 250 free spins (wager: 40x) VISIT |
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100% + 200 free spins (wager: 50x) VISIT |
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150% + 150 free spins (wager: 60x) VISIT |
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+100% (wager: loyalty points) VISIT |
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VISIT |
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VISIT |
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VISIT |
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VISIT |
Bitcoin slots for US players
Since USA is the motherland of slot games with Las Vegas being a true oasis for many gamblers from all over the world (according to this official statistic of Las Vegas visits), Bitcoin gambling keeps attracting more and more attention of US players.
The diagram below displaying the interest for most popular Bitcoin gambling games among US players according to Google Trends for the last 12 months:
As can be seen on the diagram, Bitcoin slots has the most interest in comparison with other popular games for Bitcoin (dice, roulette, blackjack and baccarat). Surprisingly, slots outperformed even dice.
Such state of affairs can be explained by the fact that online gambling in USA with regular currency has many complications, while using Bitcoin can help with that without breaking the law. Another factor, which facilitates the possibility to play slots with Bitcoin for US players is anonymity in cryptocurrency casinos.
A bit of history behind slot machines
Slot machines is relatively young in comparison with such gambling games like craps or blackjack. According to Wikipedia, the first slot machine was invented in 1891 by New York company Sittman and Pitt. Most people think that first slot machine had three reels, while actually there were five reels and its concept was based on poker game.
The second specimen of such apparatus was closer to modern slot machines. It was created by Charles Fey from California (US) and had only three reels and five symbols in total: hearts, diamond, spades, horseshoes and bells. Such implementation allowed to program the machine for automatic payouts. Who would have thought back then that someday people will be playing hundreds of different slot games without a need to leave home.
In 1976 the industry became little closer to how it looks now after the development of the first video slot (again in California), which was publicly available for play in the Hilton Hotel, Las Vegas.
Giants of the slots industry
First of all, let’s clarify what does the slots software providers term imply.
The vast majority of online casinos which offer slot games do not develop it by themselves. It would be very time consuming process, which also requires decent investments. In addition to that, if a casino offers custom-made slots without provably fair algorithm implemented, there is always a possibility for the management to tune the game’s result. That is where slots providers come in: being software developer companies, they take care about the technical part strictly focusing on games creation and then give it to casinos for a fee. But the magic is that the games are stored on the providers’ servers, so the casino don’t have any access to its source code, only to the visual part, thus the possibility for game result to be manipulated is completely eliminated. Moreover, the most reputable casino software developers have multiple licenses issued by independent regulatory, which officially represent particular jurisdictions law. It is serious business with very strict rules.
The list of world-known licensed slots software developers includes such big names:
- NetEnt
- Endorphina
- Microgaming
- Yggdrasil
- Amatic
- Play’n’Go
- Quickspin
- Habanero
This list is not definitive, there are many more less known companies and its number is constantly increasing to fulfill the growing demand in the sector of online gambling.
Bitcoin slots features
As already mentioned, video slot games offer maximum gameplay diversity among other games of chance. This also applies to slot games for Bitcoin. Thus, let’s consider some features of playing this type of gambling games.
Number of reels
Reels are the columns with symbols which slot machines have. Most of the modern online slot games have five reels, but to provide different gaming experience some software providers designed slots with another number of reels (from three up to eight). However, there is no optimal amount of reels in terms of winning, it’s just a matter of taste.
Paylines
Different slots may have different paylines as well. Payline is the pattern which the row of equal symbols on different reels have to look like after the spin. There can be as many as 244 paylines or just 9. That is pretty obvious for experienced players, but for beginners it may be confusing. The paylines for each slot game are indicated in its info panel.
Bonuses
Most of the Bitcoin casinos as well as usual online casinos run different promotions with first deposit bonus being the most significant. For example, CryptoWild gives +150% and 150 free spins for the first deposit. Not a secret for experienced gambler that such bonuses go along with wager requirement (the amount of money the user should play for before the bonus can be withdrawn). So the vast majority of bonus wager requirements, in most cases, can be fulfilled only playing slots.
Depositing cryptocurrency
If crypto-casino offers slot games supplied by independent providers (NetEnt, Microgaming, Endorphina etc.) then most likely player’s balance and bet info on the game’s screen will be displayed in dollars/euros, no matter which cryptocurrency was used to make a deposit. This is because slot games developers haven’t adopted cryptocurrency yet. However, there is nothing to worry about, as the casinos take care about seamless conversion of crypto deposited by players into usual currency to offer gamblers possibility to play any video slots with cryptocurrency (and vice versa).
Similar situation can be observed with bitcoin slots bonuses: for example, if casino’s offer looks like “100% (up to 1 BTC) and 100 free spins” it means that this bonus is also available if deposit is made with any other cryptocurrency accepted by that casino.
Volatility
Some slot game let player win rarely, but impressive amounts, another may show win after almost every spin, but the amount is insignificant. It is not only a matter of luck, there is appropriate math behind each slot and such characteristic is called volatility. There are slot games with three types of volatility: high, middle and low. In slots with high volatility winning combination can be seen rarely, but when it finally happens - the amount may blow one’s mind. In case if the slot machine has low volatility, a player can expect to see it gives money every 2-3 spins, but the amount rarely can impress. It is quite obvious that slots with middle volatility is something in between. There is no more reliable way to find out the slot’s volatility except playing it, but in most cases slots with high volatility have less paylines, while low-volatility slots have the most paylines.Bitcoin slots free spins
There are two types of free play in Bitcoin casinos: demo game and free spins. Almost every casino with slots provides an option to play for free demo credits, which may be useful to test out new games before playing with real deposit. The second option is what crypto-gamblers love the most - no-deposit free spins in Bitcoin casinos. Not that many websites offer such kind of bonus, so the list of Bitcoin casinos with free spins includes only:
- FortuneJack - no-deposit 25 free spins bonus just for signing up (T&C may apply)
- mBit - offers 50 free spins without deposit for newly signed up players with verified phone number (T&C may apply)
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