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$21 million and $4.6 million dollars It’s hard to fathom winning millions of dollars in a Las Vegas slot machine, but one man found himself in that position twice. Elmer Sherwin, a World War II. The loosest slot machines in the past 12 months have been Megabucks and penny slots. Megabucks had the tightest slots at over 11% casino win percentage. Penny slots are the most popular denomination, even though their win percentage is not the most generous. Megabucks offers some of the best slots in Vegas with the highest winnings. The Ugga Bugga slot machine game has the highest payout percentage, at 99.07%. The second highest is Mega Joker by NetEnt, with a 99% RTP. Jackpot 6000 by NetEnt and Uncharted Seas by Thunderkick come in second and third, with RTPs of 98.8% and 98.6%, respectively.

Whilst many people decide which slot to play based on the theme, special features or promotional offers, the savvy gamblers steer towards slots with the highest RTP. The house edge of online slot machines can vary widely, and it stands to reason that the lower the house edge, the better your chances of winning.

Of course, you should keep in mind that only the best slot sites to win offer high payout games from which you can take advantage. The return to player percentage of a game is measured over thousands of game rounds, and it stands to reason that the higher the RTP, the better the deal for the player. With this in mind, I have decided to create a list of the 10 online slots with the highest RTP.

#10 Jack Hammer 2 (NetEnt) – 97.1% RTP

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Jack Hammer 2 is the first of many NetEnt slots to make this top 10 list. This entertaining slot has a crime and adventure theme, captured in a comic book style. There are an impressive 99 bet lines in this game, providing plenty of opportunities to win. It also boasts a variety of interesting features that make the game exciting to play, whilst creating chances to win. The Sticky Win feature sees any winning symbol combinations held in place for a free re-spin, and they continue until no new wins are created. There is also a free spin feature, where you get up to 20 free plays, where all wins are doubled and extra wilds randomly land on the reels. Jack Hammer 2 has a player-friendly RTP of 97.1%

#9 Simsalabim (NetEnt) – 97.5% RTP

This magical themed slot recreates all the excitement of a magic show. The stage is set, with symbols such as a magician’s wand and top hat, a caged dove and a Houdini-style chained chest. The hypnotist is wild, helping to complete winning symbol combinations. When you play Simsalabim, keep your eyes peeled for 3 bunny rabbit symbols on the first 3 reels. These trigger the bonus game, where you pull rabbits from the hats to reveal cash prizes of up to 50500 coins. The slot also features a free spins round, which provides the potential for big wins thanks to the triple payouts. All these features combine to provide a great RTP of 97.5%.

#8 Retro Reels Extreme Heat (Microgaming) – 97.5% RTP

The RTP of 97.5% is one of the highest you will find in the Microgaming slots selection.Retro Reels Extreme Heat has an old-school feel, with symbols you’d expect to see on a classic fruit machine, including cherries, lemons, bells, bars and 7’s. At the same time as providing a retro feel, it includes many features which you’d expect from a modern video slot. There is a free spin bonus, where you can get up to 20 free plays with all wins doubled. There are also wild substitutions and scatter pays. A highlight is the innovative re-spin feature. After any spin, you can choose to spin just one reel, which allows increased chances of winning.

#7 Devil’s Delight (NetEnt) – 97.6% RTP

Unleash your inner devil in this NetEnt video slot. Set against a fiery backdrop and tombstones, the 5 reels are filled with symbols from the underworld.Devil’s Delight is packed full of exciting features that provide plenty of chances to stack up the wins. The devil wild expands to cover entire reels. Whilst the free spins bonus features win multipliers of up to x5. Yet the real highlight of the game is the unique Soul Reaper bonus game. Match the correct sin to each character their soul will be added to the Soul-O-Meter whilst you reap a coin prize. When the Soul-O-Meter is filled with 15 souls, the Sin Spins feature is activated. Here, you get 10 Sin Spins where you can pocket some juicy rewards. With so many cool features and a high RTP of 97.6%, this is one hell of a slot!

#6 Kings of Chicago (NetEnt) – 97.8% RTP

Kings of Chicago mixes the best elements of a video slot with classic poker. The game is played with a deck of cards, which is shuffled before each round. Unlike normal slot machines, where payouts are made for matching symbols across paylines, in this slot, you win if you have a poker hand on one of the five paylines. The game includes a joker, which substitutes for all cards. Plus, the scatter label can randomly appear on any card. Get 3 or more and free deals, the equivalent of free spins are triggered. You can bag up to 30 free deals in the special feature and all wins are doubled. This innovative slot machine provides a unique twist on what you expect from a video slot, and boasts an impressive RTP of 97.8%.

#5 Starmania (NextGen) – 97.87% RTP

With colourful star symbols set against a pretty outer space background and a spacey, ethereal soundtrack, this NextGen slot is a real treat for the senses. Wilds are stacked onto the reels boosting your shot at winning combinations. There is also a free games feature, where extra stacked wilds can help create some big wins. The game features 10 paylines and wins are paid in both directions. With every line win, you also have the option to gamble your prize, for a chance to double or even quadruple your win multiple times. The great graphics, exciting features and favourable RTP of 97.87% make Starmania a real hit with players.

#4 Blood Suckers (NetEnt) – 98% RTP

The vampire genre has never been more popular, and it is the inspiration for this spooky NetEnt slot. You’ll see various Blood Suckers adorning the reels, along with the weapons to fight them off. It is not merely the impressive 98% RTP that draws players to this slot, but also the rich selection of special features. There are wild substitutions, scatter pays, free spins with triple payouts and a vampire slaying bonus game. Trigger the bonus and you will find yourself in an ancient burial chamber, filled with coffins. Open the coffins to slay vampires, earning coin wins with each creature you defeat.

#3 1429 Uncharted Seas (Thunderkick) – 98.6% RTP

This video slot from Thunderkick is visually stunning. The reels are replaced with a medieval style hand-drawn map and the symbols include a variety of sea creatures and beasts as well as sun, moon and star symbols. The slot includes a wild symbol which expands to cover entire reels, helping to create bigger wins. There is also a free spins bonus where you can earn up to 50 free goes. 1429 Unchartered Seas has a rewarding RTP of 98.6%, one of the highest you will find in a video slot, making it a popular choice with players.

#2 Jackpot 6000 (NetEnt) – Up to 98.8% RTP

Jackpot 6000 is a thrilling classic slot machine from NetEnt with a real old-school vibe. You can play with up to 5 paylines active, betting between 1 and 10 coins per spin. It is highly recommended to play with the maximum bet of 10 coins however, as this creates the possibility of triggering Supermeter mode. In this game mode, you can win a mystery prize of between 10 – 6000 coins when just 2 joker symbols land anywhere on the reels. Also, getting 3 jokers on a payline in Supermeter mode guarantees a jackpot payout of 6000 coins. When you play Jackpot 6000 with 1 – 8 coins, the RTP is a paltry 74.9% – 79.2%. Yet with 10 coins in play, the RTP ranges from 95.1% – 98.8%. The variance is because Supermeter mode is skill based, so you can directly impact the outcome.

#1 Mega Joker (NetEnt) – Up to 99% RTP

Whilst Jackpot 6000 boasts an extremely high RTP, it is just beaten to the top spot by another NetEnt classic slot; Mega Joker. Bet with just 1 coin and the RTP is an underwhelming 76.9%. Yet on the other hand, a max bet of 10 coins elevates the RTP to between 89.1% – 99%. Furthermore, it provides bigger payouts and the Supermeter mode. In Supermeter mode, you need to choose the bet level and the optimum level at which to collect your winnings. It is this element of skill which can increase the RTP. The skill component, retro style and engaging gameplay make Mega Joker a firm favourite with players.

Frequently Asked Questions

Because our goal is to keep you well informed we have put together a list of the most frequently asked questions and our team of experts has provided the answers below.

🏆 What are the best paying slots?

The best paying slots are the ones that feature a high RTP because that translates to a small house edge such as NetEnt’s Jack Hammer 2 slot or Simsalabim, with a return to player percentage of over 97%.

✍ How do I choose a good slot machine?

In choosing a good slot machine a player should look for high payouts, volatility and the features of the game itself. For example, you are bound to have a higher return on your investment while playing a slot with free spins and multipliers.

💱 What is the average payout on slot machines?

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The average payout on slot machine varies among slots but you are going to find a higher return-to-player percentage in the recommended online casinos as compared to the traditional slot machines. Blood Suckers slot and 1429 Uncharted Seas slot have a very high RTP of over 98%.

🎰 What is a high variance slot machine?

High variance slots are destined for gamblers who are willing to play for huge wins.Kings of Chicago is a great example in that direction because it features not only a high RTP but also a high variance, which makes it ideal for our example. Flexible betting limits, free spins and a unique twist on slots as we know them are just a few perks of enjoying this title.

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How do Connecticut’s casinos stack up against casinos in other states?

Those of us who try our luck on the slots at Foxwoods or Mohegan Sun hope the next pull of the lever will be life changing. But what are the odds you’ll really walk away with cash?

Connecticut’s two tribal casinos rank in the middle of the pack in terms of slot payouts when compared with other states around the country.

According to the Connecticut Gaming Commission, Foxwoods' slot payout average is 91.85 percent. Mohegan Sun pays back at a rate of 91.71 percent. That means Connecticut has the eighth-highest payout rate of the 20 states requiring casinos to report.

The best payout percentage by state is in neighboring New York. The Empire State, with its nine reporting casinos, pays back 93.75 percent. Resorts World in Queens, New York, pays the highest returns, at 95.05 percent.

The second state by average is Nevada, at 93.54 percent. West Virginia is at the bottom of the list, with an average of 89.12 percent payback.

1. NEW YORK – 93.75 percent
2. NEVADA – 93.54 percent
3. COLORADO – 92.85 percent
4. MISSISSIPPI – 92.77 percent
5. FLORIDA – 92.46 percent
6. DELAWARE – 92.36 percent
7. **KENTUCKY– 92.06 percent
8. *CONNECTICUT – 91.77 percent
9. NEW JERSEY – 91.41 percent
10. SOUTH DAKOTA – 91.36 percent
11. ILLINOIS – 91.00 percent
12. RHODE ISLAND – 90.88 percent
13. LOUISIANA – 90.74 percent
14. INDIANA – 90.71 percent
15. IOWA – 90.69 percent
16. MAINE – 90.68 percent
17. MISSOURI – 90.64 percent
18. OHIO – 90.34 percent
19. PENNSYLVANIA – 90.16 percent
20. WEST VIRGINIA – 89.72 percent

Percentages for include slots, blackjack, keno and video poker unless otherwise noted.
*Only slot machines
**Historical Horse Wagering

It’s not an exact science. Most states include video poker, Keno and video blackjack in their percentages, which tend to give better odds. Connecticut is the only state to include only slots. States like Nevada and Louisiana report area averages, not individual casinos. Other states, like New York and Florida, exempt tribes from reporting.

The NBC Connecticut Troubleshooters sorted through slot revenue reports submitted to gaming, lottery and racing commissions for all reporting states. The Troubleshooters found that the areas with more competition tend to pay out higher averages.

Also, the lower the denomination, the lower the payback. Penny slots at both Connecticut casinos pay lower than 90 percent and receive almost half the total money wagered. The highest payouts at Foxwoods are the multi-denomination machines. They pay out 95.77 percent. Mohegan Sun’s $10 machines return 96.96 percent.

Foxwoods: July 2014 - May 2015

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• $0.01: 89.34 percent
• $0.02: 90.83 percent
• $0.05: 90.40 percent
• $0.25: 92.06 percent
• $0.50: 91.47 percent
• $1.00: 93.50 percent
• $2.00: 93.34 percent
• $5.00: 93.96 percent
• $10.00: 94.70 percent
• $25.00: 94.25 percent
• $100.00: 95.56 percent
• Multi-Denomination: 95.77 percent
• Total: 91.85 percent

Mohegan Sun: July 2014 - May 2015

• $0.0025: 85.84 percent
• $0.005: 85.45 percent
• $0.01: 88.93 percent
• $0.02: 89.21 percent
• $0.05: 88.39 percent
• $0.25: 91.64 percent
• $0.50: 91.94 percent
• $1.00: 93.04 percent
• $2.00: 96.62 percent
• $5.00: 93.82 percent
• $10.00: 96.96 percent
• $25.00: 95.38 percent
• $100.00: 93.85 percent
• Multi-Denomination: 95.19 percent
• Total: 91.71 percent

Mohegan Sun president Bobby Soper argues his casino is as competitive as any around the country. He points out the economy and amount of free play credits they give to entice bettors plays a big part in keeping them from being even higher on the list.

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'There are certainly a higher percentage of penny machines and nickel machines than previous,' said Soper. 'That across the board, across the industry is going to drive hold percentage.'

This investigation comes at a time when Connecticut is exploring the option of allowing Foxwoods and Mohegan Sun to jointly operate a third state casino, off tribal land, north of Hartford.

Locations being considered include the Enfield Square Mall, the Bradley Off-Track Betting property in Windsor Locks and the former Showcase Cinemas property in East Windsor.

The legislature approved the right for tribes to consider proposals from towns willing to host a satellite casino. Soper expects its cost could save thousands of jobs in the state and cost close to $300 million. It will include slots, table games and a poker room.

Soper hopes to see it as close to the Connecticut border as possible. Just 5 miles from the border, MGM is building a $1 billion resort casino in Springfield. A spokesman for MGM estimates its slot payouts will be in the mid-90 percent.

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State Sen. John Kissel believes casino expansion is bad policy. He argues a casino in his area of North Central Connecticut will not stop people, especially high-end gamblers, from traveling to Springfield.

'They’re aware of payouts and they’re going to travel,' said Kissel, a Republican from Enfield. 'If Massachusetts is better than Connecticut, all the high-end gamblers are going to Massachusetts and the people that are struggling to just make ends meet are going to end up in North Central Connecticut.'

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In Connecticut, the tribes are required to pay 25 percent of all slot revenue to the state. They don’t need to pay anything on table games. The state has received nearly $7 billion total since Mohegan Sun and Foxwoods opened in the 1990s.