Free slot machines have the same mechanics as the real money games: the same design, features and paytable. The only difference is that the payouts are in credits and playing slots for free, you won’t win real money. If you play to win real cash, you need to make a deposit and play online slots in real money mode. Making Money Slots. You’re going to love this online slot machine game from iSoftBet, because it has a cash splash theme going on and offers a generous 2,500 coin non-progressive jackpot. The name of the game was enough to get us tempted to play, because we all play slot machines to make money right? Flat-top slots make more sense financially; the less features, animations and sounds a slot machine has, the more money it will likely return. But flat-top machines have no bonus games or themes based on your favourite movies or TV-series.

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.

Top RTP Slots	RTP	Bet Limits	Free Spins	Paylines	Rows	Reels
Jack Hammer 2	97.10%	£0.50 – £250	10-20	99	3	15
Simsalabim	97.50%	£0.25 – £125	Yes	25	3	5
Retro Reels Extreme Heat	97.50%	£0.30 – £112.50	Up to 20	30	3	5
Devil’s Delight	97.60%	£0.20 – £40	Yes	20	3	5
Kings of Chicago	97.80%	£0.05 – £50	Up to 30	5	3	5
Starmania	97.87%	£0.10 – £20	10	10	3	5
Blood Suckers	98.00%	£0.25 – £50	10	25	3	5
1429 Uncharted Seas	98.60%	£0.10 – £100	25	50	3	5
Jackpot 6000	95.10 – 98.90%	£1 – £2	No	5	3	3
Mega Joker	99%	£1 – £5	No	5	3	3

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%.

#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 Net

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