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We evaluate slot machines based on multiple criteria, from which we make our final verdict.
Design and theme
85 %
Features and playability
90 %
RTP and volatility
95 %
Slot machine details and review X-Demon Bonus Buy
If youβre looking for a slot machine that stands out, you might want to check out Evoplayβs X-Demon Bonus Buy. With its hell-inspired design, it has various demons to feature on its reels and statues of angels on the sides, so religion plays a role here. The game area is made up of 5×4 reels, and there are 20 paylines inside.
Every slot machine must be developed by a company that invented, designed and put it into operation. Many players eventually find that they only enjoy playing on machines from specific software provider, so they narrow down their selection by preferred brand.
A slot with medium volatility. Wins are less frequent, but more often of higher value. The game is less stable and you can expect longer periods without winning, suitable for players who can tolerate higher risk and are more after bigger wins. More about volatility here.
Slot theme and symbols
The action of X-Demon Bonus Buy delivers the reels filled with demon symbols and card suits, but to the sides, you will find the stone statues of two of the archangels that will fight them, knight-like creatures with wings. Itβs an interesting design, and it doesnβt have the usual flaming hot background that most of its competitors would go for when demons and hell are involved. You get to form combinations with one of the 9 regular symbols, or with wilds. An extra row is added at the top of the slot’s 5 reels, spinning horizontally to sometimes bring special symbols.
X-Demon Bonus Buy theme and symbols
Volatility in X-Demon Bonus Buy is on the medium to high side, which means that while there will be plenty of losing spins, wins are not unheard of, either. Still, given that volatility rating, Iβm not impressed with the 2,584x top jackpot that this slot can apparently deliver in a best-case scenario. RTP still looks good, since itβs at 96.04%, but the big prize is not quite as good as I wouldβve liked.
Red Demon
Purple Demon
Green Demon
Blue Demon
Teal Demon
Hearts
Diamonds
Spades
Clubs
Special Symbols and Slot Features
3D
NO
Autoplay
YES
Free Spins
YES
Gamble Feature
NO
Locking Symbols
NO
Wild Symbol
YES
Win Multiplier
NO
Other features
Bonus buy
Other Features
Scatter Symbol
WILD symbol
These are wild symbols that can show up only thanks to the Wild Attack feature. When they land, they can either form combinations of their own or be used as substitutes for other symbols (regular ones only).
Wild Attack symbol
If you look at the top of the game area, that top row is the only one that can get the special Wild Attack symbols. If you get this symbol on one of those positions, and that same column has a Demon in the main game area, the Demon will transform into a wild symbol.
Bonus symbol
Bonus symbols can land on all reels, but theyβre available only during paid spins.
Free Spins
If you manage to get 3, 4, or 5 bonus symbols anywhere on the reels, the game will reward you with 8, 10, or 12 free spins, respectively. As you play, you collect Demon symbols, trying to meet the requirements of each oneβs special meter. If that happens, the Demon in question turns to Golden Wild and remains that way for this feature. You also get 2 additional free spins each time a meter is filled.
Bonus Buy
You have three different price points to use when it comes to the Bonus Buy. 30x the stake is the cost to trigger 8 free spins, 52x is paid for 10 free spins, and 86x the stake for 12 free spins.
Prize table
Symbol
Multiplier
3x in payline
4x in payline
5x in payline
WILD symbol
3x
15x
150x
Red Demon
3x
15x
150x
Purple Demon
2x
10x
37x
Green Demon
1.5x
7.5x
30x
Blue Demon
1.2x
6x
24x
Teal Demon
1x
5x
20x
Hearts
0.2x
1.5x
6x
Diamonds
0.2x
1.5x
6x
Spades
0.1x
1x
3.5x
Clubs
0.1x
1x
3.5x
Our rating of the game
X-Demon Bonus Buy
The theme choice may be controversial and not enjoyable for some players, but at least the design is done well. Thatβs not likely to matter too much, once you see its Medium-High volatility that can only result in prizes of up to 2,584x the stake. At the same time, there is no reason to think itβs an unfair slot, since the RTP is at a healthy 96.04%. It also comes with several features that are not found in this exact form in most slots, so thatβs another good reason to check it out.
80%
Editor's rating
Design and theme
85 %
85 %
Features and playability
80 %
80 %
RTP and volatility
96 %
96 %
How do we rate slot machines?
We evaluate slot machines based on multiple criteria, from which we make our final verdict.
Good design quality, delivering on the promise of a slot involving a battle between good and evil.
The Wild Attack feature and its ability to bring wild symbols to the game area.
You get a free spins feature that comes with its own collection system that can improve your odds.
Comes with a 29% hit frequency, so forming combinations happens often enough.
You will get several options in the Bonus Buy menu, so you can pay for as many free spins as you want.
Cons
The Medium-High volatility mentioned for this slot is a problem for beginners.
The most it will pay is 2,584x the stake, hardly the sort of top jackpot that would motivate a player.
A common mix of features, with wilds and free spins, even though there are some changes made to them.
Manufacturer EvoPlay
Evoplay is a leading iGaming software provider known for developing innovative online slot games, instant-win titles, and casino content. Established in 2017, the company has gained recognition for its high-quality graphics, engaging gameplay features, and mobile-optimized experiences.
18+. New Players Only. Β£10 minimum deposit. 100% up to a maximum of Β£200. The welcome offer can be activated only once. 30 calendar days to activate. 35x wagering. 60 calendar days from activation to complete wagering. The 100% bonus up to Β£200 will be paid out in 10% increments to your Main Account balance. Bonus balance is not payable. Any remaining bonus balance will be forfeited upon withdrawal. T&Cs Apply. GambleAware.org
How do we rate bonuses?
The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.
18+. New players only. Min dep. Β£20. Valid for 14 days from registration. Welcome Offer: Earn points for cash bets made to unlock wager-free spins on selected games: 2 points for every Β£10 bet on Slots, 1 point for every Β£10 bet on Video Poker and qualifying Side Bets. 0.25 points for every Β£10 bet on Roulette games. Maximum accumulation of redeemable points is limited to 2000. You will receive spins based on the number of points earned:10, 20, 35, 50 points = 5 spins, 70 points = 1 Superspin, 100 points = 10 spins, 200 points = 5 Superspins, 300 points = 4 Superspins, 500 points = 6 Superspins. Additionally you will earn an extra 120 Spins for every 375 points earned above the 500-point threshold, until you reach a total of 2000 points. Spins credited the next day. Spin winnings credited as cash funds and capped at Β£100 per batch of spins. Cash funds are immediately withdrawable. Wager-free spins must be used within 72 hours. Terms Apply. BeGambleAware.org.
How do we rate bonuses?
The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.
Total bonus amount
90 %
Easy to reach
89 %
Bonus conditions
90 %
Casino rating
91 %
Warning: Play and gamble responsibly | Gambling may be addictive 18+ | Underage gambling is an offence | When the fun stops, stop.
I am a writer who specializes in slot machines. I've been writing about them since 2013 and have reviewed thousands of slot machines over the years. I continue to cover the industry and review new releases for Bonusmenu. When I'm off the clock, you'll find me buried in a book or wandering the virtual wastelands of Fallout and the provinces of The Elder Scrolls.
18+. New Players Only. Β£10 minimum deposit. 100% up to a maximum of Β£200. The welcome offer can be activated only once. 30 calendar days to activate. 35x wagering. 60 calendar days from activation to complete wagering. The 100% bonus up to Β£200 will be paid out in 10% increments to your Main Account balance. Bonus balance is not payable. Any remaining bonus balance will be forfeited upon withdrawal. T&Cs Apply. GambleAware.org
18+. New players only. Min dep. Β£20. Valid for 14 days from registration. Welcome Offer: Earn points for cash bets made to unlock wager-free spins on selected games: 2 points for every Β£10 bet on Slots, 1 point for every Β£10 bet on Video Poker and qualifying Side Bets. 0.25 points for every Β£10 bet on Roulette games. Maximum accumulation of redeemable points is limited to 2000. You will receive spins based on the number of points earned:10, 20, 35, 50 points = 5 spins, 70 points = 1 Superspin, 100 points = 10 spins, 200 points = 5 Superspins, 300 points = 4 Superspins, 500 points = 6 Superspins. Additionally you will earn an extra 120 Spins for every 375 points earned above the 500-point threshold, until you reach a total of 2000 points. Spins credited the next day. Spin winnings credited as cash funds and capped at Β£100 per batch of spins. Cash funds are immediately withdrawable. Wager-free spins must be used within 72 hours. Terms Apply. BeGambleAware.org.
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Software provider
Game typeSlot
Reels
Winning paylines20 paylines
