The history of slot machines is a story of pioneers who altered the way people have gambled over the past century and a bit. You can still see evidence of the early slot machines in new video slots made today. Let's take a trip down memory lane and explore the fast-changing history of the most popular gambling game in the world.

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

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%.

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#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?

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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Penny slot machines appeal to many players because they seem to offer the lowest cost to play. For just a cent, you could spin the reels and win big. Except, that’s not always how it works in reality. Here’s everything you need to know about penny slots, as well as some of our favorites to play in 2019.

How much do you have to wager on penny slots?

You might think that penny slots just cost one cent to play. However, this often isn’t the case. Particularly at brick-and-mortar casinos, you’ll find that minimum spin values can be 50 or 100 credits on the penny slots. This means that you’re still wagering $1 per spin. No wonder penny slots account for 50% of casino income.

This is because while the unit of credits is worth a penny, you’ll be prompted to wager on all available paylines, often with multiple credits per line. Betting 5 credits a line on a 20 line, 5 reel slot machine means you’ll be wagering 100 credits on each spin of the reels. Even if you take things slow and spin the reels every 10 seconds (the average players spins every 6 seconds) you’ll still be looking at 6 spins per minute – or $360 worth of spins in an hour of play. That’s not quite what penny slot fans were planning on.

But not all slots require you to bet the maximum. If you play the best penny slots online, you’ll often find that they have minimum spins of 25 or even just 5 cents. This means that you can put a penny on all available paylines without breaking the bank.

Can you win big with penny slots?

Many people have stories about winning big with penny slots. How much is a big win when you’re betting pennies? $500 and up certainly sounds worthwhile when you’re spinning the reels. All the games list their maximum payouts, such as this one that had a maximum payout of $6500, despite one gambler believing she’d won millions.

In fact, some penny slot games are linked to massive progressive jackpots. These can be truly lucrative, in the tens or even hundreds of thousands. But before you get excited, make sure that you read the terms and conditions to activate the jackpot.

Usually, you will need to wager the maximum amount on each spin, or at least have wagers on every available payline. Check the rules before you spin because there’s nothing more disappointing than thinking you’ve just won a life changing prize, only for it to turn out to be pennies on the dollar.

What are the best penny slot machines?

When you play at physical casinos, you’ll often find that the best penny slot machines have different odds from the same games offered at higher stakes. In fact, you might come out ahead on your bankroll by playing higher stakes slots at casinos.

Types Of Penny Slot Machines Jackpots

That’s why it’s often best to play at online casinos, where the odds for a game are stable no matter your wagering level.

Types Of Penny Slot Machines Machine

Whether you wager a penny, a nickel, a quarter or a dollar, you’ll face the same house edge when you play online. Plus, you’ll get access to a much broader range of the best penny slots online.

So, what are the best penny slot machines? That will depend on your play style. Are you all about the bonus rounds, or are you just interested in the core slot action? Are you planning to play from the US or another country?

You can choose from a variety of the most popular slots online. From Wheel of Fortune to The Wizard of Oz, The Dark Knight to Wonder Woman, Monopoly to Guns N Roses, you can play tons of top-rated online slot games for penny credits. Just remember that playing for pennies doesn’t mean that your spins are cheap, but nor are your winnings.

Check out our guide on playing slots online for free.

Sources:
https://www.theguardian.com/society/2013/jun/08/slot-machine-lose-lose-situation
https://www.dummies.com/education/math/using-probability-when-hitting-the-slot-machines/
https://www.tripadvisor.com/ShowTopic-g29750-i78-k4046492-Any_penny_slots_worth_it-Atlantic_City_New_Jersey.html
https://www.usatoday.com/story/news/nation/2016/11/02/woman-denied-slot-machine-win/93206170/