Devil’s Number is a Red Tiger horror-themed video slot released in 2019, built around an occult motif and a pair of randomly triggered board effects. The game presents 30 fixed paylines across a five-column by four-row grid, with a base-game mechanic called Mark of the Beast that either upgrades premium symbols or strips low-value cards from the reels. Devil’s Number also participates in a networked progressive jackpot, which is awarded separately from the payline wins the grid produces.
Devil’s Number arranges each round on a grid of five columns and four rows and pays combinations along 30 fixed lines. The paylines cannot be switched off or reduced, so every spin is played across the full set and the stake is divided accordingly. Winning combinations are formed by matching symbols on adjacent reels running from the leftmost column, in the conventional payline manner rather than through clusters or ways.
Devil’s Number places its two variable effects inside a single named mechanic instead of splitting them into separate bonus rounds. Mark of the Beast can activate without warning during ordinary play, and both of its effects carry over into the free spins round where they behave differently. The result is a slot whose base game and bonus game share one feature set rather than presenting two unrelated systems.
Devil’s Number has the following principal specifications:
Developer: Red Tiger
Release year: 2019
Game category: Video slot
Theme: Horror and occult
Playing area: 5x4 grid
Winning system: 30 fixed paylines
Base-game mechanic: Mark of the Beast
Mark of the Beast effects: Symbol upgrade and symbol removal
Free Spins: 12
Free Spins trigger: 3 scatter symbols on the central reels
Jackpot type: Networked progressive
Maximum win potential: 2,500x stake, excluding the jackpot
Default RTP: 93.09%
Volatility: High
Supported formats: Desktop and mobile
Devil’s Number is listed by Wildz with a default RTP of 93.09%, high volatility and maximum win potential of 2,500 times the stake. That maximum applies to the paytable and feature wins only and does not include any progressive jackpot award. The exact mathematical configuration can vary by market, making the information panel inside the game the relevant source for its current RTP and betting conditions.
Devil’s Number begins each round when a stake is confirmed and the five reels resolve into the 5x4 grid. Matching symbols occupying consecutive reels along one of the 30 fixed lines are paid according to the paytable, with the highest single win on each line counted. Because the line count is fixed, the number of active paylines never changes between spins.
Devil’s Number then checks whether either Mark of the Beast effect has been triggered by the completed spin. If it has, the board is modified and the resulting layout is evaluated again before the round closes. The activation of these effects is determined by the game’s random number generator, so no sequence of stakes or spin timing makes them more likely to occur.
Devil’s Number groups its two base-game modifiers under the Mark of the Beast name, and either can trigger at random after a spin resolves. One effect raises the value of the premium symbols, while the other removes low-value card symbols from the grid so that fresh symbols fall into the vacated positions. Both are available on any paid spin without a separate qualifying condition.
Devil’s Number keeps the choice of effect and the decision to trigger at all inside its programmed feature set. Players cannot select which of the two effects will apply, force an activation by adjusting the stake, or read a pattern from earlier rounds that indicates one is due. The mechanic changes the board after the fact rather than giving any control over what the reels produce.
Devil’s Number uses its upgrade effect to increase the payout value of the high-paying symbols for the evaluation that follows. The removal effect works in the opposite direction, taking the royal card symbols off the grid after they have contributed to a win so that replacements can drop into the gaps. A removal can therefore produce a further winning layout from the same original stake.
Devil’s Number does not charge an additional wager for a layout created by the removal effect during the same round. Each replacement set of symbols is generated independently, so a removal that has already paid once carries no assurance that the next arrangement will pay again. The two effects alter the odds of the round in progress and do not change the game’s underlying return.
Devil’s Number is attached to a networked progressive jackpot, meaning the prize pool is shared across the provider’s participating titles rather than funded by this game alone. Play on other games in the network contributes to the same pool, which is why the amount on offer moves independently of activity on Devil’s Number. An award from that pool is separate from the paytable and is not tied to any of the 30 paylines.
Devil’s Number quotes its maximum win of 2,500x the stake without the jackpot included, so the two figures should be read separately rather than added together. A jackpot award is triggered by the network’s own conditions and cannot be brought about by a particular betting pattern or by playing for a longer session. The size of the pool at any moment carries no information about how close an award is.
Devil’s Number awards 12 Free Spins when three scatter symbols land on the central reels in the same spin. Landing three further scatter symbols during the round retriggers the feature and extends it with additional spins. The trigger requires the scatters to appear on the middle reels rather than anywhere on the grid.
Devil’s Number changes the behaviour of both Mark of the Beast effects for the duration of the bonus. Royal card symbols removed after a win stay off the reels for the rest of the round, and premium symbols that upgrade keep their raised value rather than reverting, so the symbol mix improves as the round progresses. Whether the round develops that far still depends on the results the game generates, and a longer bonus cannot be secured by the size of the triggering stake.
Devil’s Number carries a default theoretical RTP of 93.09% in the version listed by Wildz. This figure sits below the level typical of a video slot without a shared jackpot, because a portion of every stake is diverted into the networked prize pool instead of the game’s own paytable. The percentage describes the calculated long-term return across a very large volume of wagering rather than the expected outcome of a session.
Devil’s Number may be supplied with a different permitted RTP setting in another market or through another operator. The percentage stated in the game information menu is therefore the accurate figure for the specific version in play, and should be checked before wagering. A published return does not indicate what any individual sequence of spins will pay.
Devil’s Number has a high-volatility profile as listed by Wildz. Its mathematical structure can produce considerable variation between rounds, so stretches without meaningful returns can occur alongside occasional larger winning sequences. The 30 fixed paylines and the removal effect together mean small line wins are possible, while the substantial results depend on the bonus round.
Devil’s Number volatility describes how potential payouts are distributed and not when any of them will arrive. A run of unsuccessful rounds does not increase the probability that a large result must follow, and the same distribution applies to every spin regardless of what preceded it. Session length and stake size change the amount at risk rather than the shape of that distribution.
Devil’s Number offers maximum win potential of up to 2,500x the total stake in its standard listed configuration. A qualifying £1 stake would therefore correspond to a theoretical upper game limit of £2,500 before any separate operator restrictions were considered. This ceiling covers the paytable and the feature wins and expressly excludes the networked progressive jackpot.
Devil’s Number reaching that figure requires an exceptional combination of upgrades, removals and free spin outcomes in the same round. The stated maximum should be understood as a technical limit rather than a representative return for ordinary play. Published maximums are calculated from the game’s best possible sequence and not from typical results.
Devil’s Number can be played in the United Kingdom through an online casino that holds the necessary Gambling Commission permission and carries the Red Tiger title in its catalogue. After account registration and age verification, a player can open the game, read its rules and paytable, select a permitted stake and start a round. The fixed 30-line structure means the stake is set as a single amount rather than by choosing how many lines to activate.
Devil’s Number stakes are also governed by the United Kingdom’s statutory online slot limits. Players aged 18 to 24 can stake no more than £2 per game cycle, while customers aged 25 and over have a £5 maximum. These limits have applied since 21 May 2025 and 9 April 2025 respectively and are set in regulation rather than by the operator.
Yes, Devil’s Number can be played on compatible mobile phones and tablets. Red Tiger supplies the title in both desktop and mobile form, allowing the 5x4 grid, the 30 fixed paylines and the Mark of the Beast effects to adapt to smaller displays. The paytable and the feature behaviour are the same on a handset as on a desktop computer.
Devil’s Number mobile access generally takes place through a compatible casino website in a supported browser. The same age-verification, licensing and stake-limit requirements continue to apply when the game is opened on a phone, since those obligations attach to the operator rather than to the device. Screen size changes the presentation and not the mathematics.
Yes, Devil’s Number has a free demo version that uses virtual credits rather than real-money stakes. The demo runs the same 5x4 grid, the same 30 fixed paylines and the same Mark of the Beast effects, which makes it a way to see how the upgrade and removal mechanics behave before wagering. Virtual credits cannot be withdrawn and no cash prize is paid from demo play.
Devil’s Number free-play access through a British licensed operator remains subject to United Kingdom age-protection requirements. Gambling Commission rules require remote licensees to verify age before customers are given access to free-to-play versions of gambling games offered on their websites. The networked jackpot is not in play in the demo, since no stake is contributed to the pool.
Devil’s Number can be offered to players in the United Kingdom by online casinos that hold the appropriate Gambling Commission licence and carry the Red Tiger game. British customers must be at least 18 years old, complete the required verification procedures and remain within the statutory online slot stake limits. Verification must be completed before gambling begins rather than at the point of withdrawal.
Devil’s Number is listed on Wildz internationally, but Wildz states that customers visiting from the United Kingdom are redirected to partner casinos. UK players should therefore use the Gambling Commission public register to confirm that the casino they ultimately use is authorised for the British market, rather than assuming the international Wildz platform accepts UK registrations. The register is the authoritative record of which operators hold a current licence.
Devil’s Number real-money gameplay in the United Kingdom falls within the regulatory system supervised by the Gambling Commission. Online operators serving customers in England, Scotland and Wales must hold the appropriate regulatory permission, and the Commission maintains a public register where a gambling business can be checked before any deposit is made. Operators are also required to present the game’s RTP and rules to the player.
Devil’s Number players must be 18 or older to gamble online in the United Kingdom. Licensed businesses must verify customer identity and age before gambling is permitted, with the minimum verification information including name, address and date of birth. Age verification is also required before access is given to free-to-play versions of gambling games.
| Area | United Kingdom Rule |
|---|---|
| Minimum online gambling age | 18+ |
| Main regulator | Gambling Commission |
| Online casino licensing | Operators serving the United Kingdom must hold the appropriate Gambling Commission licence |
| Identity checks | Name, address and date of birth must be verified before gambling |
| Maximum online slot stake, ages 18–24 | £2 per game cycle |
| Maximum online slot stake, ages 25+ | £5 per game cycle |
| Free demo access at licensed operators | Age verification is required before access to free-to-play gambling games |
| Wildz status for UK visitors | Wildz states that UK visitors are redirected to partner casinos |
Devil’s Number players should distinguish Great Britain from the United Kingdom as a whole when interpreting Gambling Commission rules. The Commission regulates gambling in England, Scotland and Wales, while Northern Ireland operates under a separate legal framework and is not governed by the Gambling Act 2005 in the same way. The statutory slot stake limits described above are Great Britain measures and apply to online slots specifically.
Devil's Number pays matching symbols on 30 fixed paylines across a 5x4 grid, read from the leftmost reel across consecutive columns. Once a spin resolves, the Mark of the Beast mechanic can randomly upgrade the premium symbols or remove low-value cards so replacements drop in, after which the board is evaluated again.
Devil's Number carries a default theoretical RTP of 93.09% as listed by Wildz. The figure sits below a comparable slot without a shared jackpot because part of every stake is routed into the networked progressive pool rather than the paytable. Check the in-game information panel for the setting in use.
Yes. Red Tiger supplies Devil's Number in both desktop and mobile form, so the 5x4 grid, the 30 fixed paylines and both Mark of the Beast effects rescale for phones and tablets. Paytable values and feature behaviour are identical, and the same age-verification requirements apply.
Yes. Devil's Number has a free demo that uses virtual credits instead of real-money stakes and runs the same grid, paylines and features. Virtual credits cannot be withdrawn, and demo play does not contribute to the networked jackpot. Licensed operators must verify age before granting free-play access.
Min/Max Bet:
€
0.10 –
400.00
Volatility:
High
(7/10)
Platform:
Desktop & Mobile
Developer:
Red Tiger Evo
Game Type:
Slots