Professor Clank’s Combinator

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Professor Clank´s Combinator Slot Review

Powered by Yggdrasil, ReelPlay offers a cool electro-mechanical engineered slot with cascades, drop sequence, and more features. A lot of things are going on while the professor is busy with his business. Thus, this low-variance slot is a nice shot if you want up to 10,000x the stake payouts with a low betting range. Let´s see how Professor Clank’s Combinator looks like.

Min bet:£0.25
Max bet:£25
Max win:10,000x
Release date:July 18, 2022
Our rating:⭐⭐⭐

Professor Clank’s Combinator slot

Here is a list of UK online casinos where you can play Professor Clank’s Combinator slot.

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Professor Clank’s Combinator slot features

This game has 6 reels and 3 to 5 rows where the mayhem occurs. There are Wilds, Explosions, Morphs, Drops, Boosters, Respins, and more to watch out for.


Professor Clank himself appears as the Wild symbol. He appears to replace all symbols except the Scatters although he’s limited to the 2nd, 3rd, 4th, and 5th reels only.


The Scatter symbol shows up as the blue Gear that helps players to trigger the bonus round. Thus, the chances of winning bigger payouts are higher whenever you land the triggering Scatters.


There are 18 symbols that Cascade to fill the reels at the start of the sequence and explosions occur once you create a winning combination. This removes all non-winning symbols except the Scatters so only the winning combinations remain. These symbols also fall at the bottom of the reels while the rest are eliminated except the Scatters.


Two or more types of symbols can remain in the grid once the Explosion occurred. Aside from the Wilds and Scatters, the 2 remaining types of symbols can morph into the top-paying symbol between the two.


After the Explosion and Morph, the Booster is activated if the previously winning symbol is no longer in the winning position. As its name suggests, the Booster feature places one or more matching symbols around it to complete another winning combination.


Once the 2 previous features occurred, a new symbol drops to any reel where the 5 rows haven’t been filled yet. The new symbol is removed if it isn’t a matching symbol. But if the Drop is a matching symbol, it will remain to extend the winning cluster.

The landing Scatters are also saved if the Drop symbols are high-paying symbols. This also triggers the new Drops. The Drop continues until all positions are filled or no more winning symbols occur before paying the final win.

Bonus Respins

Landing 5 or more Scatters trigger this feature after the Drop. All symbols are then removed from the reels except the Scatters and 3 Respins are awarded. This feature also resets the Respin counter and the Drop feature where the landing Scatters are saved and other symbols are eliminated. The collected Scatters pay out any of the following Jackpot prizes once you use all your Respins:

  • Non-Bonus = 1x to 100x the stake
  • Bronze Bonus = 10x the stake
  • Silver Bonus = 50x the stake
  • Gold Bonus = 250x the stake
  • Platinum Bonus = 2,000x the stake

All Scatters with attached prizes appear in this bonus as the game starts with 3 Respins.


As part of the Bonus Respins, you can Gamble up to 3x and stop anytime you want. You can Gamble all, half, or none of your winnings. But if you Gamble and fail, you’ll lose all your bonus winnings. You can Gamble with different Multipliers that are associated with these winnings:

  • 1.25x = 4 in 5
  • 1.5x = 2 in 3
  • 2x = 1 in 2
  • 2.5x = 2 in 5
  • 3x = 1 in 3
  • 4x = 1 in 4
  • 5x = 1 in 5
  • 10x = 1 in 10

Bonus Buy

You can enter the Bonus Respins instantly for 50x your stake. This option adds 5 or more Scatters to trigger the bonus feature.

Professor Clank’s Combinator RTP, volatility, and prizes

You can play this slot with a £0.25 to £25 bet on 707 pay lines. Thus, it is suitable for small wagers who also prefer low-variance slots like Professor Clank’s Combinator. Regardless, this slot has an average RTP of 96.15% and a decent hit rate of 24.5%.

Most importantly, winning here awards up to 10,000x the stake per game. The low-paying 9 to a Royals pay 0.5x to 1.5x the stake for 6 matching symbols. The premium Wrench, Goggles, Gun, and Robot symbols pay 2x to 10x the stake.


We like that the Cascade of Professor Clank’s Combinator adds an interesting action in the adjacent symbols and spin sequence. This boosts the chain of winning combinations that create longer and more engaging spins. Its math model is satisfying enough despite its low volatility since it has a high payout.

What´s the RTP in Professor Clank’s Combinator slot?

Professor Clank’s Combinator RTP is 96.15%.

Which game provider released Professor Clank’s Combinator slot?

Professor Clank’s Combinator is the work of ReelPlay

What´s the volatility in Sticky Bandits: Trail of Blood?

Sticky Bandits: Trail of Blood is a high volatility slot.

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