Dark Summoning is a 6-reel slot from Hacksaw Gaming built on a 5x6 grid with 24 winning lines. The game has medium-high volatility and a stated top win of 10,666x the stake. RTP settings vary by version, with figures shown at 96.36%, 94.34%, 92.22% and 88.28%.
The base game uses a Super Cascade system, where winning symbols are removed and replaced by new drops that can create additional wins in the same round. Wild symbols substitute for regular symbols and may carry multipliers from 2x to 100x. Unholy scatter symbols are collected during play, while Order scatters can turn multiple positions into Wilds.
Two bonus rounds are available. Trial by Hellfire awards 10 free spins and replaces Hellfire-marked positions with Wilds, while Rise to Salvation also offers 10 free spins but reverses the cascade direction and introduces persistent Lost Soul symbols that can add to a global multiplier or pay cash prizes. A demo version is available to play for free, which lets users practice before playing for real money.