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We evaluate slot machines based on multiple criteria, from which we make our final verdict.
Design and theme
70 %
Features and playability
75 %
RTP and volatility
96 %
Slot machine details and review Hell Hot 20
Hell Hot 20 is an Endorphina slot machine, which theyβve released as part of a series of such games, each one with a different number of active paylines. Youβre looking at a game with 5×3 reels that gets 20 paylines. Theme-wise, itβs a fruit-themed slot that has hell as a setting, so you get plenty of fire, even though thatβs not the main focus on the reels.
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 machine with low volatility. Wins occur frequently, but are usually small. The game has a smoother course without large fluctuations, suitable for players who do not like risk and work with a smaller budget. More about volatility here.
Slot theme and symbols
A slot released by Endorphina, Hell Hot 20 was designed to feature a fruit-themed and retro graphics, so it not only copies the inspiration of the classics, but also does the same for their design. Besides fruit and other classic symbols, youβre also looking at the hell side of the design, visible in the fire shown in the background image and the wild symbol. Itβs the same look that you get from many other slots that have a similar theme, so it doesnβt do a great job at standing out in a crowd. There are 6 regular and 2 feature symbols mentioned on its paytable.
Hell Hot 20 theme and symbols
Hell Hot 20 was designed to offer the player Low volatility, so you can count on it paying fairly often, even though the typical rewards will be lower. It does a pretty good job making that gameplay attractive, since it adds a 1,000x top jackpot, and keeps the long-term RTP at 96.01%. Forming a combination requires that you land 3+ matching symbols on active lines, going from left to right.
Red Seven
Watermelon
Grape
Lemon
Plum
Cherries
Special Symbols and Slot Features
3D
NO
Autoplay
YES
Free Spins
NO
Gamble Feature
YES
Locking Symbols
NO
Wild Symbol
YES
Win Multiplier
NO
Other features
Scatter Symbol
WILD symbol
One of two feature symbols introduced in Hell Hot 20, the Wild is easy to spot. It has the Wild logo with a flame behind it. These are stacked symbols that land on all reels, and you often get their help with the formation of new combinations by acting as replacements for other symbols. Itβs rarer to see, but they can also pay directly if you can line up 3 to 5 wilds on the same line. Paying up to 50x the stake, the wild symbol offers the best prizes available in combinations.
Scatter symbol
There is one other feature symbol, the Star scatter. It also lands on all reels and pays you when there are 3 to 5 of them present. The rewards range from 5x to 500x the roundβs stake, so they have a big impact if they land enough times.
Risk Game (Gamble)
The Risk Game is available after winning rounds. You get the option to either collect winnings or gamble them, in the hopes that you double them. Win the card game against the dealer, with a higher card, to do this. Lose it, and you end up with nothing for that spin.
Prize table
Symbol
Multiplier
3x in payline
4x in payline
5x in payline
WILD symbol
2x
20x
50x
Scatter symbol
5x
20x
50x
Red Seven
1x
4x
20x
Watermelon
1x
2x
10x
Grape
1x
2x
10x
Lemon
0.50x
1x
5x
Plum
0.50x
1x
5x
Cherries
0.50x
1x
5x
Our rating of the game
Hell Hot 20
Itβs a series with several slots, and Iβd say that Hell Hot 20 is one of my favourites. It doesnβt have as many lines as the others, but the game area is smaller, and the top jackpot is higher (1,000x in this case). It keeps the volatility low, and Iβm satisfied with the announced RTP of 96.01%. Other issues remain, such as the lack of modern features (not expected of a classic, though) and retro graphics (some players may prefer the land-based machine look). Good for casual players or beginners, but I doubt it will do much for a more experienced player.
75%
Editor's rating
Design and theme
70 %
70 %
Features and playability
75 %
75 %
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.
Pays up to 1,000x the stake, and it does this just through regular winning combinations.
Has low volatility, making it a good option for most players, as long as they donβt expect huge wins.
Iβm satisfied with the 96.01% RTP, which means that it pays that much long-term back to players.
Stacked wild symbols are present, and they pay up to 50x the stake for their own combinations.
It gets scatter symbols that will pay up to 500x the stake if they land enough times on its reels.
Cons
A combination of fruit symbols and hellβs fire is something very common in older-style slots.
Dated graphics, in line with what the land-based machines wouldβve looked like.
Lack of modern features, so the focus is only on forming regular combinations.
Manufacturer Endorphina
Endorphina is a Prague-based online casino software developer founded in 2012, known for creating visually stunning and mathematically balanced slot games. π° The company combines classic slot mechanics with innovative features and engaging storylines, appealing to both traditional and modern players. Endorphinaβs portfolio includes popular titles like Book of Vlad, Hell Hot 100, and Chance Machine 40, all designed in HTML5 for seamless play across devices. Licensed and regulated by reputable authorities, Endorphina continues to stand out in the iGaming world for its creativity, reliability, and focus on player experience.
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. 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
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.
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
