Your guide to the top online casinos with the latest slot machine games.
About Slot Machines
When you think of slot games machines you would be forgiven for conjuring up the image of a state-of-the-art electronic machine with flashing lights, an array of sounds and some huge jackpots. For the most part you are correct but slot machines, fruit machines or one-armed bandits have been around for more than 100 years and are so popular today that they often make up more than 70% of a casino's take!
A common symbol on the reels of a slot machine is Bell and this is because the first-ever slot machine, invented back in 1887 by Charles Fey of San Francisco, was called the Liberty Bell. Fey designed an automated machine that span five reels that had pictures of spades, hearts, diamonds, horseshoes and the Liberty Bell and if they lined up in a specific pattern it would pay out money. The machine was an overnight success, so much so that within months other inventors copied the design and started rolling out their own versions of it and of new games started to appear.
As technology progressed more and more slot machines became electronic which was great news for everyone who was involved in them. A whole range of new games started to appear with themes of popular television shows and films being the slots of choice. The new technology also allowed the machine owner to completely control the amount of money it pays out and link several machines at once for a progressive jackpot, one of the most played slot machine games of all time.
The largest-ever progressive jackpot win from a slot machine was for $39,700,000 when a man placed $100 worth of bets in a machine at the Excalibur Hotel and Casino in Las Vegas! The online slots record stands at around �2,000,000 but payouts in excess of $400,000 are quite common.
On all slot machines you should be able to find out the chances of being paid out by it. In Las Vegas, Nevada all slot machines have to pay out a minimum of 75% although it is most common to find machines paying out in the 82-98% range. That said there are some casinos that frequently put machines paying out in excess of 100%, especially in machines near the entrances, so the sound of people winning attract new customers into the casino!
Looking to play online casino slot machines for money? Scroll down to our American-friendly casinos section.
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Featured Online Casino
Spin Palace Casino
Spin Palace is one of the most well-known online casinos around the world. Using Microgaming online gaming software, Spin Palace has the best games and biggest jackpots in a gaming environment that constantly exceeds all expectations.
Spin Palace boasts an average payout ratio of 97%, along with excellent customer service in various languages and constant promotions, campaigns and special loyalty bonuses for regular players.
Payments are done in a secure environment and a wide range of deposit options are available, including MasterCard, Visa, Firepay, Neteller, Switch, Delta and many others.
Featured USA Casino
Due to online gambling legislation sneakily passed by Congress in 2006, online casino operators face difficulties in operating in the US market. The result of this is a reduction of choice for American players.
Among the reputable US-friendly casinos, we consider the RTG-powered casinos to be the clear winner, as the other softwares are simply not as good.
Grand Parker Casino
Grand Parker Casino is a great place to play for USA based players. It uses state of the art software from Real Time Gaming and offers one of the best and most secure payment processing systems around so that you can be sure your deposits and withdrawals are dealt with safety and confidence.
At Grand Parker Casino you can enjoy over 100 of the best online casino games in the business. Check out the Casino Games by clicking the Instant Play button on the casino homepage or for even better graphics you can download the Real Casino lobby using the download button.
This RTG online casino are offering all new players an amazing welcome bonus of up to $8,000 free over their first three deposits. First, you can take advantage of a 250% bonus for your first two deposits. Then, follow that up with an even higher 300% on the third deposit.
This means that you can get up to $8,000 in bonus money to use on Grand Parker's thrilling slots machines!
Featured Online Slot
The Dark Knight
The Dark Knight arrives to Microgaming online casinos! Fans of the comic series and slot machines will definitely not be disappointed with this one, its only major problem being that it cannot be played for free.
This will become known as the Batman Slots Game, as it is poised to become one of Microgaming's most popular casino slot games.
The graphics and special effects are superb, with cinematics interspersed along the game as you unlock features like free spins and a bonus round. When you score a "Big Win" you will be shown action-packed scenes from the movie.
Like with The Lord of the Rings slot, Batman Slots uses a special effect named Cinematic Spins. As you spin the reels, the reels will become transparent and action sequences from the film will play in the background. Microgaming calls this a whole new technology, dubbing it "Cinematic Spins".
On the main game screen itself there is plenty of animated stuff going on. For example, at any time in the game, Batman will appear and transform one of the reels into a stacked Wild. Joker will also show up to drop a bomb on the screen, revealing a cash price in the process.
For some reason Microgaming decided to make this game very dark, too dark. The game can be appreciated more by increasing the brightness of your monitor.
Be aware that this is a progressive slot machine, which unfortunately means that you can only play it with real money, not with a fun account.
The progressive jackpot is played out in the roulette wheel round, where you will win one of four progressive jackpots, the biggest of which would make you a millionaire!
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