Devil’s Number Slot

Visual Part and Sounds

When I first opened Devil’s Number slot game, released in 2019 by Red Tiger Gaming, I thought, ‘This has to be one of the darkest titles in their collection.’ It is hard to ignore the occult theme, with the hot and dark background of the reels and game symbols that seem straight from an old spellbook.

The graphical details are precise without being too busy, which I found friendly because it keeps the player’s focus where it is intended (on the reels). The colour scheme has muted colours, which makes for long gaming sessions with less eye strain.

Everyone loves good animations, and they were consistent and congruent. The sound design was a highlight; Devil’s Number features a brooding ambient track that plays whenever a spin or win occurs, with bright, crisp notes that perfectly match the theme.

Mechanics and Key Game Elements

The Devil’s Number slot machine is built with two cool mechanics: symbol removal and symbol upgrades. Instead of relying on wilds, the game clears out low-value wins and boosts high-value symbols for big payout bursts. This design aligns perfectly with its volatility and is visible from many other dark-themed games.

Symbols

• Low-value symbols: 10, J, Q, K, A
• High-value symbols: Scroll, Spellbook, Cauldron, Potion (skulls)
• Scatter: Golden “9” symbol, landing on reels 2-4; 3 scatters trigger the free spins feature (transforms into 666).
• Wild: Not included. The slot relies on the Remove and Upgrade mechanics instead.

Bonus Features Tied to Symbols:

• Remove Feature: When low-value icons form a win, they may be cleared, letting new symbols fall (cascade).
• Upgrade Feature: When a high-value icon forms a win, payouts may be increased. In free spins, upgrades become permanent.

I prefer this payout setup to slots where wilds dominate. The balance between clearing small wins and powering up high-value icons keeps the math sharp. It feels tougher than average but more rewarding when a chain hits.

Jamie Wall Casino Analyst

Here’s the full pay table and the key figures for Devil’s Number’s max win.

Devil’s Number paytable

The next section covers the practical side of the slot: how to play, betting strategy, paylines, reel setup, autoplay options, and RTP.

Slot Play Guide

The Devil’s Number slot takes place on a 5×4 grid featuring 30 fixed paylines. The betting range is between £0.10 and £200 per spin, depending on the casino site you choose. The bet stake is fixed across the lines, which means players can only set their total stake.

This online slot offers autoplay and allows a set number of spins, but has stop conditions. There is also the option to use Turbo, which increases the speed of the reels for faster gameplay. This page does not have a demo slot; however, many slot sites in the UK provide demo mode after registering. There is also a Free Play version on the Red Tiger website, so players can demo safely before playing for real.

Regarding payouts, the most likely RTP is 96.06%; some operators run a lower version around 94.18%. The slot volatility is high. The game offers a max win potential of 2,500× stake.

During my test run of Devil’s Number, the controls felt tidy and responsive. Autoplay worked effortlessly, and Turbo didn’t show any glitches. Starting from 10p a spin makes it friendly for beginners, though the high volatility means a cautious bankroll strategy is best.

Jamie Wall Casino Analyst

Test

Our team tested Devil’s Number over multiple sessions, both in demo mode and with small stakes of real money, to give a fair view of how this slot performs.

In one test, it took nearly 180 spins to trigger free spins, with the golden 9s flipping into 666 and awarding 12 spins. Inside, low-value cards vanished while high-value icons upgraded permanently, giving me close to 100× my stake. In another run, I never reached the slot bonus at all, which shows just how swingy the slot can be. The rules are simple, though: three scatters unlock 12 spins, and another set can retrigger six more.

Jamie Wall Casino Analyst

Our Verdict

Since its release date, Devil’s Number has kept its appeal as a gothic-style, high-volatility slot from Red Tiger. Golden Saturn, the occult theme, fits perfectly with the Remove and Upgrade mechanics, while the simplicity and nature of free spins allow for big hits as the numbers reveal value.

• Pros:
• Remove feature clears low-value cards for cascades
• Upgrade feature boosts high-value symbols
• Free spins with permanent upgrades
• Turbo and autoplay options for flexible play

• Cons:
• No wild symbols included
• High volatility creates long dry spells
• Bonus can take many spins to trigger
• No side features like gamble or pick rounds

Ideal for players who can be patient to extract value from the features. You can play Devil’s Number for fun while getting used to the mechanics before risking any real stakes.