Red TigerRed Tiger

    Devil's Number

    8.6/10
    Release April 2019· Updated June 2026

    Red Tiger's gothic, creepy-library slot (April 2019). BetsRank score: 8.6/10.

    RTP
    95.05%
    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
    🎰

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    8.6

    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 95.05%, 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 95.05% 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 95.05%, 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 95.05%
    • ▸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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    Try the official demo on Red Tiger's site
    Alexandre Dubois
    Alexandre Dubois

    Online Casino & Bonus Expert

    Last updated: 6/27/2026

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