In this review
Professor Clank's Combinator Slot
Updated: 22.07.2025
Reviewed by: Fabio Duarte
It’s been a while since we saw a fine, steam-punk slot that can entertain us not only with cool graphics but useful features as well. Well, the wait will soon be finally over, as on 18/07/2022 ReelPlay releases their new steam-punk slot - Professor Clank's Combinator!
Bonus Respins and Bonus Buy, Scatters and Wilds, this slot has plenty of goodies to offer. And in this review, we will share with you everything you need to know about Professor Clank's Combinator!
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Get BonusWelcome bonus: max. 170% up to 3,000 USDT + 165 FS
18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org
Get BonusWelcome Offer: max. 150% up to $1,600 + 400 FS
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Get BonusWelcome bonus: max. 200% up to €8,000 + 400 FS
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Get BonusWelcome Bonus: up to 25% on the first 3 deposits
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Get BonusWelcome offer: max. 100% up to €3,600 + 1,100 FS
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Get BonusWelcome bonus: max. 200% up to €1,750 + 290 FS
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Get BonusWelcome Package: max. 175% up to €4,800 + 255 FS
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Get BonusWelcome bonus: max. 100% up to €450 + 250FS
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Get BonusWelcome bonus: 100% up to €10,000 + 100 Free Spins
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Get BonusWelcome bonus: 140% up to €1,000
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Get BonusWelcome offer: max. 100% up to €2,400 + 150 FS
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Get BonusWelcome offer: max. 100% up to €450 + 250 FS
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Get BonusWelcome Package: max. 100% up to €3,000 + 350 Free Spins + 1 Bonus Crab
18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org
Get BonusWelcome Package: max. 150% up to €3,750 + 200 FS
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Get BonusWelcome bonus: 100% up to €500 + 200 Free Spins + 1 Bonus Crab
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Get BonusWelcome Bonus: max. 120% up to €1,450 + 225 FS
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Get BonusWelcome Bonus: max. 100% up to €1,000 + 1 Bonus Crab
18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org
Get BonusWelcome Package: max. 100% up to €4,000 + 1,000 Free Spins
18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org
Get BonusWelcome offer: max. 100% up to €3,400 + 1,200 FS
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Get BonusWelcome Package: max. 100% up to 25,000€ + 350 Free Spins
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Release Date:18.07.2022
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Volatility:
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RTP:96.1%
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Multiplier:Yes
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Max. win:10,000x
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Bonus game:Yes
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Free spins:No
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Scatter Symbol:Yes
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Wild symbol:Yes
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Symbol Stacked:No
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Jackpot Game:No
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Slot lines:707
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Slot reels:6
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Layout:6-5
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Stakes range (€/£/$):0.20 to 25
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Slot Theme:Steampunk
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Technology:HTML5
Licensed and tested by
How to Play
In a 6x3(5) slot, Professor Clank's Combinator has up to 707 ways to win. And while it offers no jackpot, it does allow you to purchase a bonus, specifically, the Bonus Respins feature.
Now, when you want to play Professor Clank's Combinator the steps are very simple:
- Visit your casino and find Professor Clank's Combinator slot then load it
- Once you’re in the game and see the reels, click on the three lines symbol on the right, and check out the rules of the game and the value of the symbols
- Then place your bets - the minimum stake is €0.20 and the maximum is €25
- If you wish you can click on the “Bonus Buy ” feature to purchase Bonus Respins; the cost of this feature will depend on your total bet
- Then just click Spin or Autospin and have fun!
Professor Clank's Combinator RTP and Volatility
Professor Clank's Combinator is a low volatility slot with an RTP of 96.1%.
The slot has an average, good Return to Player rate of 96.1%, and this value is fixed. As for the volatility of Professor Clank's Combinator, it is low, which means that it will be a lot easier to get a winning combination of symbols and to get payoffs. But these payoffs will be a tad bit lower than in medium or high volatility games.
Theme
Professor Clank's Combinator has a very cool steampunk theme, which would be especially appealing for the players that love this aesthetic. The background, reels, and symbols - all have a unique look to them and clearly have a lot of effort put into design and details. The music of the slot is also pretty great and intense, having that villainous tone to it.
And we also can’t forget to mention the symbols as well! Professor Clank's Combinator has 12 symbols overall: 10 regulars and 2 specials - Wild and Scatter.
The regular symbols are those of playing card stack, 9 to A, wrench, pair of goggles, blaster, and a robot with a teapot for head. Their value goes in the described order, with 9 being the symbol with the lowest value, while the robot is the highest paying symbol in-game.
Then you have Specials. The Wild symbol is the main character of the slot, Professor. It will substitutes for all symbols except Scatter and will not appear on columns 1 or 6. Scatter, on the other hand, will trigger Bonus Re-Spins if you collect 5 of these symbols.
Mobile Compatibility
About ReelPlay
If you follow the news of the gambling industry and keep an eye on the providers then you most likely have heard of ReelPlay. Established in 2014 this Australian-based provider was once known as Chance Interactive before its rebranding. UKGC-licensed, trusted by many ReelPlay implement HTML5 technology to ensure that all of their slots like Mega Pearl Gigablox, Zodiac Infinity Reels, Rogue Treasure, Thor Infinity Reels, and others are mobile friendly and up to the standards of the gambling industry. And yes, for now, ReelPlay produces only video slots, but all of them can boast great quality, design, and many features.
Bonus Rounds & Free Spins
Drops Feature
If you land on a winning combo all the other non-winning symbols other than Scatters will be removed from the reels, while the remaining ones will drop to the lowest position on the reels. Then there will be an explosion and if as a result, some symbols remain on reels, they will transform into the highest paying symbol.
This then triggers the Drops feature, as the new symbol will be dropped on top of each column that still has less than 5 symbols. Any of these dropped symbols, safe for Scatter, will explode if they do not match or substitute for the current paying symbol. But any dropped symbol that matches or substitutes for the current paying symbol will explode.
Bonus Re-Spins
If you collect 5+ Scatter Symbols, it will activate the Bonus Re-Spins feature. With it all symbols that are not Scatters will explode, all the remaining symbols will drop to the bottom and you will also get 3 respins. A new symbol will be dropped onto the top of each column that has less than 5 symbols present, and the non-Scatter symbols will be removed. Then, when you land on a new Scatter, it will trigger the respin count, resetting it to 3. When the feature is over, every Scatter will give you a prize:
Non-bonus - range from 1 to 100x your total bet
Bronze - 10x your total bet
Silver - 50x your total bet
Gold - 250x your total bet
Platinum - 2,000x your total bet
Gamble Feature
You can access the Gamble feature after the Bonus Re-Spins, allowing you to multiply your total win. You can gamble up to 3 times as well as choose whether you want to gamble all or half of the total win. The max win from the Gamble Feature is 10,000x your total bet, so if you win higher than that the winning winnings will be disabled.
Buy Bonus
If you wish to get the Bonus Re-Spins immediately, you can use the Buy Bonus feature and purchase the feature right away. The cost of the feature is 50x your bet, and the exact amount will be calculated for you in the menu.
Professor Clank's Combinator Demo Play
A great thing you also need to keep in mind is that you can actually try out Professor Clank's Combinator for free, by checking out the demo version of the game. No need to download anything or register, you can just load the demo via any browser and have fun! And yes, the demo is completely free, and has the same features as the “for real money” game, except in the demo you will make bets using virtual currency.
Max Win
The most you can win in Professor Clank's Combinator is 10,000x total bet.
Given the slot’s volatility and good RTP rate, the maximum win of the 10,000x your bet is a pretty great win potential. What’s more, is that you have plenty of options to get a good win - from Bonus Re-Spins prizes to the opportunity to purchase the feature right away, with the Bonus Buy feature.
Overall Rating
The way we see it, Professor Clank's Combinator would be a fantastic choice not only for steampunk theme fans but also for both casual and experienced players. For one, the low volatility of the slot will allow you to get winning combos more often, and mixed with the fine RTP, this will appeal to beginners and casual players alike. But interesting and even complex features and Gamble feature will be quite interesting to more seasoned gamblers.
Great visuals, fine features, and many winning potentials - this slot has it all, hence why we think Professor Clank's Combinator is certainly worth giving it a shot!
Hits
Many useful and interesting features
Good looking theme
Presence of Special Symbols
Misses
Not many betting options
FAQ-section
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What is the hit frequency in Professor Clank's Combinator?
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The slot’s hit frequency is 24.5%.
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What is the Return to Player rate of Professor Clank's Combinator?
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The RTP of Professor Clank's Combinator is 96.1% which is just about average for the video slots.
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Can I play Professor Clank's Combinator for free?
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If you wish to play the slot for free, you can check out the free demo of Professor Clank's Combinator. With it, you don’t need to make any deposits and you will be able to play using virtual currency instead of the real one.
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Overall rating
Based on 2 reviews
The slot’s main features are respins, but there are also boosters for base spins – explosions + symbols swap. They can happen after getting winning clusters and cleaning a grid.
It’s great that the gameplay is not that respins-oriented. There is always a chance for decent (x10+) win during base spins due to boosters. Ofc slot can be cold, and bonus buy is more of a bait then.