Red TigerRed Tiger

    Devil's Number

    7.6/10
    Release April 2019· Updated August 2026

    Red Tiger's gothic, creepy-library slot (April 2019). BetsRank score: 7.6/10.

    RTP
    96.06%
    Volatility
    Very High
    Max Win
    2 520x
    Grid
    5x4
    Bonus Buy
    No
    Theme gothic creepy libraryUpgrade feature (boost high symbols)Remove feature (replace low symbols)12 Free Spins via "666" triggerPermanent upgrades en FS
    Devil's Number
    Play Devil's Number at BetRivieraRed Tiger publishes no official demo · verified partner casino
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    BetsRank Verdict

    Hands-on testing by Alexandre Dubois — bonus tested, multiple sessions

    A Red Tiger gothic slot (April 2019) with a creepy, spooky library theme. RTP 96.06%, volatility very high (5/5), max win 2,520x. 5x4, 30 paylines. The Upgrade feature (boosts high-symbol wins) pairs with the Remove feature (replaces low-value symbols after wins). 12 Free Spins are triggered by 3 scatters forming an upside-down 666.

    Strengths

    • +Immersive, distinctive gothic theme
    • +Upgrade and Remove features working together
    • +Very high volatility (5/5) for big-swing sessions
    • +12 Free Spins triggered via the 666 formation
    • +Permanent upgrades carry through the Free Spins round

    To consider

    • −RTP of 96.06% is below average
    • −Max win of 2,520x is on the light side
    • −Max bet of €40 is quite limited
    • −No Bonus Buy option
    • −Very high volatility can feel brutal for smaller bankrolls

    About Devil's Number

    Released on April 11, 2019, Devil's Number is a Red Tiger slot set in a gothic, creepy-library theme. RTP 96.06%, volatility very high (5/5), max win 2,520x. Format 5x4, 30 paylines, stakes from €0.20 to €40.

    Two base-game features: the Upgrade feature (boosts high-symbol wins) and the Remove feature (replaces low-value symbols after wins). 12 Free Spins are triggered by 3 scatters landing on the middle reels, forming an upside-down 666. Both features remain active during the Free Spins, with permanent upgrades applying to high-value symbols.

    Key mechanics

    • ▸RTP 96.06%
    • ▸Gothic library theme
    • ▸Upgrade + Remove features
    • ▸12 Free Spins via the 666 trigger
    • ▸Very high volatility (5/5)
    • ▸Max win 2,520x stake

    ❓Devil's Number FAQ

    What is the RTP?▾

    95.

    05%.

    Is it available at online casinos?▾

    Yes — at reputable online casinos that carry the Red Tiger catalogue.

    How do you trigger the Free Spins?▾

    Land 3 scatters on the middle reels forming an upside-down 666 to trigger 12 Free Spins, with the Upgrade and Remove features remaining active throughout.

    Is there a Bonus Buy option?▾

    No, Devil's Number does not offer a Bonus Buy — the Free Spins can only be triggered naturally.

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    Alexandre Dubois
    Alexandre Dubois

    Online Casino & Bonus Expert

    Last updated: 8/9/2026

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    Slot sheet last updated on · Sources: slotcatalog.com, official provider sites, BetsRank hands-on testing