Dark Spiral

What Dark Spiral has actually done in our bonus hunts

We have opened Dark Spiral 8 times across 8 separate bonus hunts between 1 Jul 2026 and 19 Sep 2026 and recorded every result. Across those 8 opens the median result was 91.7× the bet, against 50.1× for every slot in our recorded dataset. The biggest single result we have recorded on it is 185.9×. 3 of those 8 opens were 100× or better. 8 opens is a small sample and describes only these recorded sessions — it is not this slot's RTP and it does not predict what your next bonus will do.

Hacksaw Gaming built Dark Spiral around body-horror imagery — melted limbs, split smiles, unsettling reflections — playing out on a 6x4 grid. A win needs at least three matching symbols running together on connected reels, counted from the leftmost column, and Summoning symbols can stack extra symbols onto the board, pushing the number of ways to win from a base 4,096 up to a maximum of 331,776.

Ten-to-Ace card ranks fill the bottom of the paytable, worth 0.5x the stake for six of a kind, while five unsettling body-part creature symbols serve as the premiums, paying 1x to 3x for the same. A wild appears on every reel, substitutes for any paying symbol, and pays 5x the stake for five in a row. Wins clear from the grid and pull in a fresh drop of symbols, and this repeats for as long as new wins keep landing.

Summoning symbols are the game's centrepiece. They come in sizes from 1x2 up to 1x4, appear on any reel except the leftmost, and when triggered unveil a run of matching pay symbols or wilds underneath — the bigger the Summoning symbol, the more it uncovers. A wild sitting directly above or below one on the same reel gets absorbed as the Summoning symbol grows to cover it. A Summoning symbol involved in a win holds its position through the cascade and keeps revealing something new underneath on every drop, so a single one can pay out repeatedly.

Three scatters open the Shattered Bonus Game for ten free spins with better odds of Summoning symbols appearing, and picking up two or three scatters during any of the three bonus rounds tacks on two or three additional spins. Four scatters instead trigger the Twisted Bonus Game, which runs the same way except every landed Summoning symbol sticks in place and keeps uncovering fresh symbols on each spin until the round finishes. Five scatters unlock the Tortured Hidden Epic Bonus, built on Twisted's rules with two Summoning symbols guaranteed on the opening spin.

The feature buy menu offers a 3x-bet spin that makes bonus triggers five times more likely, and a 100x-bet purchase that guarantees two Summoning symbols on the next spin; buying into Shattered outright costs 100x the stake, and Twisted costs 200x. Dark Spiral pays out up to 96.22% RTP across four available settings, is rated 4 out of 5 for volatility, hits at a frequency of 25.2%, and caps its top win at 10,000x the stake on bets between $0.10 and $100.