Rat King

Awesome 8.9 / 10

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Rat King Free Demo Play

Rat King is an online slot from Push Gaming, a developer that provides many quality slots. Here they have opted for a retro look like old computer games. This includes a main character who looks suspiciously like Kirby.

The Best Online Casinos & Bonuses to Play Rat King for Real Money

Rat King - Slot Review

As a win mechanism, Rat King is their first Scatter Pays slot machine. With Jammin’ Jars, Retro Tapes and Fire Hopper, Push Gaming already showed they have mastered the Cluster Pays mechanism. Time for a new challenge, then.

The developer is known for slots with nice RTPs. This is no different here with a theoretical payout percentage of 96.30%. The game also has a medium to high volatility. We are curious to see what Push Gaming has to offer with the game of chance. How Rat King comes out of the test, you can read in this slot machine review.

Rat King has a playing field with 6 columns and 6 rows for a total of 36 symbols. Per spin, you choose your bet between $0.10 and $100. You adjust the bet by clicking on the pile of money above the spin button.

PROs & CONs of Rat King


  • Nostalgic design
  • High winnings thanks to Multipliers
  • Bonus Buy feature
  • Medium to high volatility


  • Fake symbols are not clear
  • Theme is unclear

Thanks to the Scatter Pays mechanism, you need at least 7 times the same symbol in your play area to win. These disappear after this, allowing all symbols to fall down and giving you new ones to fill up the playfield.

Between the symbols you have 4 fake symbols. These look like the paying ones, but in gray and slightly smaller. The symbols you do like are the 6 different types of candy. The blue macarons give you 0.5 times your bet at 7 pieces. However, if you collect 20 or more of the red gummy candies, they are worth 50 times your bet.

Bonus Features of Rat King

In addition to the symbols of Rat King mentioned above, there are two more special ones. These are the ones that can help you collect high winnings faster. Especially if you want to win the maximum win of 10,000 times your bet, they come in handy.

Rat King

Rat King is quite fun and exciting to play. You always hope that the Multipliers and Scatters will fall down to trigger the bonus features.


In your play area you will occasionally come across a bright star. These are Multipliers that represent a number between 2 and 500. If you can drop these to the bottom row, they are collected in the boxes below the playfield. Now the Multiplier is active for the total winnings of your spin. If you win several, they add up.

Free Spins bonus

Finally, there is the Rat King after which the slot machine is named. Of these, you try to get 3, 4 or 5 in the boxes at the bottom of the slot. That’s how you unlock the Free Spins bonus. You then win 10, 15 or 20 Free Spins respectively.

You play the bonus round almost the same as the base game. The only difference is that your Multiplier is not reset to zero after every spin. Yet it is not active on every spin either. Every time you collect a star, it is added to the Multiplier and will be active. New Rat King symbols you collect will give 3 additional Free Spins.

Rat King compared to 3 other Push Gaming slots

Slot nameRTPMin. betMax. betMax. win
Rat King96.30%$0.10$10010,000x
Fire Hopper96.3%$0.10$10050,000x
Big Bamboo96.13%$0.10$10050,000x
Fat Banker96.43%$0.10$10025,000x

Push Bet and Bonus Buy

It can be a while before you can trigger the bonus game. That’s why Push Gaming has provided a Push Bet feature with Rat King. By paying 20% more for your spin, you have 39% more chance of getting the Free Spins bonus feature.

Or you can simply buy out the bonus. You do this by pressing the asterisk above the spin button. You will then be given the options to buy 3, 4 or 5 Rat King Scatters for 100, 250 or 500 times your bet.


Every time you have at least 7 identical symbols in your play area, they form a combination. If they are fake symbols, they disappear. Otherwise, you will receive the corresponding payout which increases depending on the number.

Rat King’s maximum win is limited at 10,000 times your bet. For a medium to high variance slot machine, this is a high value.

Collecting at least three Rat King symbols at the bottom of your playfield will win you 10 or more Free Spins. You can also buy these with the Bonus Buy feature for at least 100 times your bet.

As usual, Push Gaming gives the Rat King slot machine a nice theoretical payout percentage. The RTP here is at 96.30%.

Software Push Gaming
Slot Types Megaclusters
Reels 6x6
Paylines Cluster Pays
Slot Game Features Avalanche, Bonus Buy, Buffalo Mechanic, Cascading Symbols, Free Spins, Multipliers, Scatters, Symbol Collection, Wild Symbol
Min. Bet 0.10
Max. Bet 100
Slot Themes Animals, Dark
Slot RTP 96.3%
devices Mobile versionTablet versionDesktop version
Rat King Slot by Push Gaming

About the author

Kate Ko

Kate Ko / Games editor

last updated

Kate joined CorrectCasinos' game team in the late 2021. She's here to find and review all new and upcoming slots titles, so you can just enjoy their free play.

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