This is an editorial guide provided for information only. Game rules, features and payout figures are set by the provider and can vary between casinos and game versions — RTP in particular can differ by operator, so always check the game’s own info panel before playing. Availability at fortunegames.com can change at any time.
Devil’s Number Slot Explained
Devil’s Number is Red Tiger’s occult curiosity from 2019: a comic-book-styled 5x4 slot on 30 fixed paylines with no wild symbol at all. Its engine is the Mark of the Beast — a feature that upgrades your high symbols and burns the low ones off the reels — and a free spins round triggered by the number 666 itself.
How the base game plays
Set in a satanic library of spell-books, cauldrons and potion bottles above the card royals, wins run left to right across the 30 lines. At random, the Mark of the Beast flares on a winning combination: land a win with high-paying symbols and they can be upgraded to the next symbol on the paytable; win with low-paying symbols and they can be removed entirely, tumbling new symbols into the gaps.
The 666 free spins
Land three “9” scatters and they flip upside down to spell 666, awarding 12 free spins on blood-red reels — and here the Mark of the Beast stops being random. Every winning combination triggers it: each card-symbol win permanently removes that symbol for the rest of the round, while each picture win upgrades. Run well, and the reels end up carrying nothing but premiums — the game’s whole design funnels toward that purified final board. Three more scatters during the round add six extra spins.
RTP, volatility and max win
The default RTP is 96.06%, with lower configurations in circulation — the info panel confirms your version. Volatility is firmly high: the bonus can take a long while to arrive, and the base game is a slow burn by design. The published win potential is around 2,500x the stake, reached through a fully-stripped free spins board.
Who it suits
Players who enjoy watching a game transform — the removal-and-upgrade loop is genuinely satisfying — and who don’t mind the missing wild or the patient base game. Anyone wanting frequent small wins should look at lower-volatility fare; this one saves itself for the number of the beast.
Frequently asked questions
Who makes the Devil’s Number slot?
Red Tiger Gaming, released in 2019 — a 5x4 game on 30 fixed paylines.
Does Devil’s Number have a wild symbol?
No — unusually, there are no wilds. The Mark of the Beast upgrade and removal features do the heavy lifting instead.
How do you trigger the free spins?
Land three “9” scatters — they flip to form 666 and award 12 free spins, with six more for three further scatters.
What is the Devil’s Number max win?
Around 2,500x your stake, most realistically after free spins have removed the low symbols and upgraded the rest.
Related guides: the Blood Suckers slot, A–Z slot games and what a good RTP percentage is.