Devil's Sevens

Devil's Sevens is a horror-themed slot from Olimp with an RTP of 96.5%, high volatility and a maximum win of 25,000x. The game uses a 5-reel, 6-row cluster pays grid where wins form on adjacent symbols in any direction.

Cascading reels tumble winning clusters away, allowing new symbols to fall and create consecutive wins on a single spin. Winning clusters trigger The Blast, which clears a 3x3 area around the hit cell and exposes symbols beneath for further tumbles. The Blast does not pay directly but leaves Charged Cells behind, each holding a 2x, 3x or 5x multiplier that applies to wins landing on that cell. The Blast does not affect Flaming 777 scatters, Burning Seven symbols or wilds.

Wild Columns turn an entire reel wild, holding a nominal value that boosts wins but cannot substitute for special symbols. The Burning Seven symbol accumulates a multiplier during spins, though this value is capped lower in the base game than in bonus rounds. The Devil's Cut can halve a pending Burning Seven total without paying directly.

House Brand stamps one to three card symbols, which redraw into a single high-value symbol and can trigger multiple times per spin. Flaming 777 scatter symbols trigger Hellfire Spins when four or more land; additional scatters increase the starting free spin count, and retriggered scatters add spins during the feature. Scatters survive tumbles and counts build across the cascading sequence.

Four bonus buy options skip to the feature directly. House Favour at 100x bet awards 20 to 32 free spins and increases House Brand frequency. Hellfire Deal at 250x bet boosts The Blast's frequency and board impact. Inferno Run at 500x bet favours six Flaming 777 triggers and longer free-spin starts. The Devil's Table at 1,000x bet allows Wild Columns to hold an entire reel and can create two-column boards.