Devil's Number

Devil's Number

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Red Tiger

Developed by Red Tiger Gaming, Devil's Number is a 5-reel, 4-row, 30 pay line slot game. The most exciting thing about the game is the Free Spins round; during this, all of the lower value symbols are replaced with high-value symbols to boost your payout. Playable across all devices, the slot can be enjoyed from your mobile, tablet or PC from between 20p and £40 per spin. If you want to know more about Devil's Number and its features, keep reading!

Theme and Appearance

Devil's Number has a comic book style and the visuals are pretty impressive. Set in a spooky old library, you'll be faced with a row of books and a couple of statues when you enter the game. The title banner features a horned skull and has been designed in the same comic-book style as the rest of the slot. The background also includes some animated flames, which certainly provide the game with a Hellish vibe.

The symbols are made up of scrolls, a cauldron, a book of spells, a potion bottle and A to 10 royals. As you'd expect, the royals represent the lower value symbols while the themed icons have a higher value. The most valuable symbol is the potion with a skull stopper; if you manage to land 3, 4 or 5 of these on a pay line, you'll be awarded 3, 6 or 12x your stake respectively. During the base game, 2 bonus symbols can boost your winnings. Unfortunately, the playing card symbols tend to dominate the reels. As these are the lower-paying symbols, this is pretty typical for a slot of this sort. The standard slot machine winning criteria is used, with 3 or more matching icons needed to score a win.

Betting and Prizes

The slot game comes with a wide bet range, making it suitable for both high rollers and casual players. You can get started from as little as 20p and increase your bet to a maximum of £40 per spin. If you want to increase your winning potential, look out for the ‘666' symbol that represents the beast. When the number appears on the reels, it activates a Free Spins round. The game is high volatility, meaning that you could play for a while without scoring a win. However, when you do form a matching combination, you can enjoy a decent sized payout. If you prefer frequent, smaller payouts, you may be better studied to a slot with lower volatility. The game has an overall RTP set at 96.06%. This is reasonably generous for a modern slot and means that you should recoup most of your money when you finally land a winning combination. The slot has various control options including Fastplay and Autoplay modes. These are easy to set up from the main screen and are simple to deactivate or change throughout the game.

Slot Features

Upgrade Feature

The Upgrade feature can activate on any winning combination that includes 1 of the higher value icons. If you manage to land a scroll, spellbook, cauldron or potion bottle, the payout receives a boost. For instance, the potion bottle awards 6, 12 or 22.2x your stake instead of the usual 3, 6 or 12x.

Remove feature

The Remove feature can trigger on any winning combination made up of the lower value A to 10 icons. When the feature is activated, the winning symbols are removed from the reels and replaced with new ones, allowing you to land another winning combination if luck is on your side.

Free Spins

The slot game also comes with a Free Spins feature. This is activated by landing 3 of the ‘9' symbols on the middle three reels to form a ‘999' combination. The reel is then turned upside down to reveal ‘666' and you'll receive 12 free spins. Both the Remove and Upgrade features remain in play throughout the Free Spins round, allowing you to boost your winnings even more. However, if you score a win with a lower value symbol, they are removed from the bonus round completely.


Overall, Devil's Number is a well-designed slot game with good winning potential. While the theme won't be to everybody's taste, the graphics and sound effects are pretty impressive. The comic book style gives the game its own identity, separating it from other Devil-themed slots on the market. The game also has some decent features to keep you entertained, one of the most popular being the Free Spins feature where the upgraded payouts and bonus symbols can provide an action-packed round.

High volatility, you can bag up to 2500x your stake per spin in Devil's Number. With the innovative features and upgraded payouts, the slot offers action-packed gameplay with decent winning potential. If you're a fan of Red Tiger Gaming’s previous games, Devil's Number is certainly worth checking out.