Dark Summoning Slot Review
by Hacksaw GamingReleased Dec 7, 2023
Free demo - play instantly in your browser
Dual bonus system with opposing mechanics - hellfire marks winning positions while salvation reverses cascades upward. Wild multipliers up to 100x that add together. 10,666x max win.

Specifications
| Game Type | Slots |
|---|---|
| RTP | 96.36% |
| Volatility | Very High |
| Max Win | 10,666x |
| Grid | 5x6 |
| Paylines | 24 Fixed Paylines |
| Min Bet | $0.1 |
| Max Bet | $100 |
Dark Summoning Slot Overview
One symbol decides whether you go to hell or are saved. Collect three Unholy scatters on their own and you enter Trial by Hellfire. Collect the same three while an Order symbol is on the grid and you get Rise to Salvation instead — a completely different bonus with the cascade running upward.
It is a rare case of a theme and a trigger condition doing the same job, and the two rounds it leads to have almost nothing in common.
Five reels by six rows with 24 paylines, 96.36%, very high volatility, and a maximum of 10,666x — a figure chosen to match the 666x top prize inside the salvation round.
Theme & Design
An occult chamber cut from stone. The grid is a wall of carved tablets, hellfire burning along the bottom and up the sides of the frame, everything in dark blue and red with orange glow bleeding through the cracks.
The two sides of the conflict stand either side of the reels: a hooded skeletal priest on the left, a looming demon on the right. Given that the entire mechanic turns on whether the holy symbol is present when you trigger, having them physically flank the board is the right staging.
Low symbols are runic letters carved into the tablets. The high symbols are occult imagery — moths, pyramids with eyes, skulls and crosses. It is restrained rather than gory, and better for it.
Symbols & Paytable
| Symbol | Payout |
|---|---|
| Wild | 30xFive or more, three times the best ordinary symbol. Can carry a 2x to 100x multiplier |
| Top symbol | 10xFive or more. Also 2x for four and 1x for three |
| Third and fourth high symbols | 5xFive or more. 1.5x for four, 0.8x for three |
| Two remaining high symbols | 2.5xFive or more. 1x for four, 0.5x for three |
| Five runic low symbols | 1xFive or more. 0.5x for four, 0.2x for three |
| Cash Prize Lost Soul | 10x to 666xAwarded when it reaches the top row, multiplied by the global multiplier |
Features & How They Work
Three Unholy, with or without the Order
Unholy scatters that land alongside a winning combination are collected, and three landing at once are collected regardless of any win. They only appear on reels three, four and five.
Three collected Unholy symbols on their own send you to Trial by Hellfire. Three collected while an Order symbol is present send you to Rise to Salvation instead. Same count, entirely different destination, decided by whether the holy symbol happened to be on the board.
Will of the Order converts the grid
When an Order scatter lands, it replaces itself and anywhere from one to nine other symbols with wilds, which may or may not carry multipliers.
And several Order symbols each trigger it separately, so two landing together can convert up to twenty positions on a thirty-cell grid. That is by far the biggest swing available in the base game, and wilds here pay 30x for five in their own right on top of substituting.
Hellfire marks everything and then converts it
In Trial by Hellfire, every winning position is marked with hellfire and the marks persist across spins. When an Unholy symbol lands, it activates the Fires of Hell: the Unholy and every hellfire-marked position on the grid are all replaced with wilds, and the marks are then cleared.
So the round is an accumulation. Every win adds more marked cells, and the longer you go without an Unholy, the larger the eventual conversion. Waiting becomes the good outcome, which is not how bonus rounds usually work.
Salvation runs upside down
In Rise to Salvation the cascade direction is reversed and symbols fall upward. Lost Soul symbols are persistent and travel up with each cascade, and they pay out only when they reach the top row.
Two kinds arrive. A Global Multiplier Lost Soul adds 2x to 100x to a multiplier above the reels. A Cash Prize Lost Soul awards between 10x and 666x your bet, multiplied by whatever that global figure currently stands at.
Which means order is everything. Multiplier souls reaching the top before the cash souls is worth vastly more than the other way round, and watching two of them climb in the wrong sequence is genuinely painful.
An anti-stall rule worth crediting
If three non-winning spins occur in a row during Rise to Salvation, three to five random symbols are removed on the third spin, forcing the souls to move upward.
Without it, a round could stall completely with souls stranded mid-grid. Building in a rule that prevents its own worst outcome is a small piece of care that most studios do not bother with.
Super Cascade and the buys
A win removes every symbol of the winning type from the grid, not just the winning line, and new symbols cascade in for potential chains. BonusHunt FeatureSpins make a bonus five times more likely, and both bonus rounds can be bought directly. Prices are not published in the game data.
Screenshots

How Dark Summoning Plays
The base game is thin, as usual from this studio, with the top symbol paying 10x for five. What carries it is the Order symbol, because a single landing can turn a third of the grid wild and the wilds themselves are worth more than any regular symbol.
Once you have an Unholy or two collected, the base game changes character completely. You stop watching for wins and start watching for whether an Order symbol will turn up before your third Unholy does, because that single question decides which of two very different bonuses you play next.
Hellfire is the more explosive round and Salvation the more interesting one. Reversing the cascade so everything climbs upward, and making the souls only pay when they reach the top, gives ten free spins a genuine geography — you can see exactly how close each prize is and roughly how many cascades it needs.
Pros & Cons
Pros
- The presence of an Order symbol decides which of two completely different bonuses you enter
- Will of the Order can convert up to nine other symbols to wilds, and stacks if several land
- Hellfire marks accumulate across the round and all convert at once
- Rise to Salvation reverses the cascade upward, with souls paying only at the top row
- An anti-stall rule removes symbols after three dead spins so souls cannot get stranded
- Wilds pay 30x for five, three times the best ordinary symbol
Cons
- Very high volatility with a thin base paytable behind it
- Unholy symbols only land on three of the five reels
- In Salvation, cash souls reaching the top before multiplier souls waste most of their value
- Buy prices are not published, and there is no ante bet
Is Dark Summoning Worth Playing?
The trigger fork is the idea that makes this. Two bonuses reached by the same collection, separated only by whether the holy symbol happened to be on the grid, is elegant in a way slot design rarely manages — the theme is not decorating the mechanic, it is the mechanic.
Both rounds earn their place too. Hellfire rewards patience, since every spin without an Unholy makes the eventual conversion larger. Salvation turns the grid upside down and gives you something to track, and the studio was thoughtful enough to build in a rule stopping the souls from stalling.
Very high volatility and a nominal paytable mean the base game is largely a wait for an Order symbol. But this is coherent, confident design, and the 10,666x is a target worth having.
Frequently Asked Questions
How do you trigger the bonuses in Dark Summoning?
What does Will of the Order do?
How does Trial by Hellfire work?
What happens in Rise to Salvation?
What is the maximum win and RTP?
Can you play Dark Summoning for free, and what is the age limit?

Reviewed by Arina, PR & Content Manager
PR & Content Manager at SlotsReach
Published 8 Aug 2026 · Updated 8 Aug 2026