Helluva Slot by GameArt is a 3x3 slot with five paylines and a hell-themed design. The game uses a compact reel layout and a bet range from 0.05 to 100, with an RTP of 96.27%. Players can use the demo version to play for free and practice before playing for real money.
The main mechanics include expanding wilds, which can lock on reel 3 and trigger the Helluva Respin feature. Sticky wilds may remain in place across spins, supporting additional winning combinations. A Wheel of Fortune bonus can be activated by landing nine matching symbols, with multipliers up to x30 before the top counter multiplier is applied.
Helluva Slot also includes the Satanotchi gamble feature, where players can guess red or black to double a win, or suit to multiply it by four, with up to five consecutive gambles available. A buy bonus menu is also listed among the game options, allowing direct access to bonus action.