Sinful 7’s

Sinful 7s Slot Logo New Online Slots

Sinful 7s, by Blueprint Gaming, is a colourful fruity slot played across a 5x3 grid layout with 10 paylines.

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Sinful 7s Game Overview

Sinful 7s is one of the numerous new slots online that base its theme around the number 7. However, this game has an impressive potential top prize worth up to 50,000x your stake! 

In addition, it is a medium to high volatility slot, with a 94.5% Return to Player (RTP) rate. If you would like to play this game, stakes range from £0.20 up to £2 per spin on All you have to do is log in or register. 

If you would like to start playing Sinful 7s, click on the ‘Play’ button in this review. Otherwise, you can continue reading to learn more about the game.

How To Play

The gameplay of this slot can be relatively simple. You form winning combinations by landing three to five matching symbols on a payline, aligned from left to right on the reels.

Once you open the game, you'll find the playing grid set on flaring flames with the game's logo above it. If you look below, you'll see the control panel with a series of buttons on display. 

On the far left is the menu button, where you'll find all the necessary information. You can refer to it for the game's rules and paytable. 

Next is the stakes icon, which you can tap to select your preferred wager. After setting your bet, you can now proceed to play by pressing the large spin button. You can also click the speaker button on the right to play without the sound. 

Note that in this game there is also a gamble button, which is just beside the spin button. You can use this to turn the gamble feature on, or off, for potential wins worth up to 5x your bet.


As with most classic slot games, this game features a variety of fruit symbols such as Cherries, Oranges, Plums, Watermelons, 7's, and a few colourful characters. However, the developers of this slot threw in different sets of 7 symbols. For example, there is the Lone 7, the paired 7, and the triple 7.

The fruits and Lone 7 can pay somewhat similarly. The fruits can earn you 0.5x your wager for three-of-a-kind, while the Lone 7 can award 1x your wager. Both the fruit symbols and Lone 7 can also pay up to 10x your stake if you land five matching symbols across a payline. Meanwhile, landing the paired 7 can payout 2x to 15x your stake for three or five-of-a-kind. Then, the final set of 7's - the triple seven, can award you 3x to 25x your bet for a three or five combination. 

The highest-paying symbol is the deceitful looking little devil symbol that is also the slot's wild. It is worth between 10x and up to 500x your stake for landing three or five-of-a-kind. The closest to it in value is the Horned Bell, which peaks at 100x your wager for a five-of-a-kind match. 

Finally, you may also land the Devil's red trident scatter symbol. They cannot award any payout amounts, but they can trigger the free spins feature if three or more land in a single spin.

Note that the wild can substitute for every other symbol, excluding scatters, to help complete potentially winning combinations. Also, you can still get a payout if you get a mix of the different sets of 7 symbols across a payline (single, double or triple 7). However, a mixed combination of 7s peaks at 5x your stake for five mixed 7 symbols on a payline. 

Upgrading 7s Free Spins Bonus Round 

You can progress to this round if you hit up to three scatters in a spin during the base game. If this happens, you get 12, 18, or 24 free spins, depending on how many scattered symbols you landed to unlock the feature - three, four, or five.

Meanwhile, if you land any 7 symbols during the free spins as part of a win, it will automatically upgrade it to the triple 7. That means you'd get a higher winning potential. And what's more, landing another set of scatters during the free spins will earn you additional free spins. The more scatters you land, the higher the number of extra free spins you get. For example,

  • Three Devil Forks will award you +12 free spins;
  • Four Devil Forks will award you +18 free spins; while
  • Five Devil Forks will award you +24 free spins.

Gamble Feature

After each win, you can choose to collect your reward, or stake it on the gamble feature. 

The gamble feature enables you to try your hand at landing potentially larger prizes or free spins. If you decide to use this feature, you'll find the button on the control panel. 

It presents you with two wheels; one at the left for possible cash prizes and the other at the right for free spins. Both come with + and - minus buttons, which you can use to select the amount you aim to get. The maximum amount of free spins you can gamble for is up to 50 free spins.

The segment you land on after a spin determines your fate. If perhaps you land on the green part, you win the gamble! And you can collect your winnings via the collect button, or choose to gamble again. Losing, on the other hand, means you land on a red segment and forfeit all your winnings and return to the base game. 

Sinful 7s RTP

Return To Player (RTP): 94.5%

The RTP is a theoretical value and is shown as a percentage. It’s used to describe the percentage of money wagered a particular casino game may pay back to players over a certain period of time.

For example, if a game had a RTP of 92%, in theory, this would mean that for every £100 wagered, the game could return £92 back to players in potential winnings. However, it is important to note that winnings are completely random, and players are not guaranteed to receive this.

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*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.