Rat King Slot Review
Down in a grimy underground candy factory, a crowned white rat presides over vats, pipework and crates smeared with pink goo, and the whole thing is drawn in chunky neon-purple pixel art like a 1990s arcade game. It’s a setting that shouldn’t work as well as it does, and Push Gaming has leaned into the grime rather than polishing it away. Rat King plays the same trick with its maths: the symbols themselves are worth very little, and everything interesting happens on the way down the grid.
It’s a 6×6 scatter-pays game, running at 96.30% RTP (96.34% with the Push Bet) with medium volatility, a 10,000x win cap and stakes from 0.10 to 100 per spin. It sits alongside Jammin’ Jars and Big Bamboo in the Push Gaming catalogue, and like both, it’s a game of collections rather than paylines.
How the Base Game Pays
Winning combinations need a minimum of seven matching symbols anywhere on the 6×6 grid. It’s a scatter-pays engine, so position doesn’t matter, only count. Where two combinations overlap, the highest value is the one that pays.
When a win lands, the winning symbols are paid and removed, and everything left on the board collapses downwards. New symbols cascade in from the top to fill the gaps, so one spin can chain several wins. A fresh round clears the board completely before the first cascade.
There’s no wild in Rat King. The special symbols are a scatter, a multiplier and a set of duds, and the base game is about steering all three into the Collection Boxes at the bottom of the grid.
Dud Symbols
A Dud is a blank: grey, worthless, and sitting in the way of everything else. Match seven or more of a kind and they clear from the board, making room for new symbols to fall in. It’s the one case where matching worthless symbols actually helps.
Symbol Values
All pays are multiples of the total bet, stepping up as the cluster grows:
- Red berry: 7-8 pays 2x, 9-10 pays 4x, 11-14 pays 8x, 15-19 pays 20x, 20+ pays 50x
- Pink cake slice: 7-8 pays 1.5x, 9-10 pays 3x, 11-14 pays 6x, 15-19 pays 15x, 20+ pays 37.5x
- Golden drizzle macaron: 7-8 pays 1x, 9-10 pays 2x, 11-14 pays 4x, 15-19 pays 10x, 20+ pays 25x
- Orange swirl candy: 7-8 pays 0.7x, 9-10 pays 1x, 11-14 pays 2x, 15-19 pays 5x, 20+ pays 12.5x
- Purple donut: 7-8 pays 0.6x, 9-10 pays 0.9x, 11-14 pays 1.6x, 15-19 pays 4x, 20+ pays 10x
- Blue macaron: 7-8 pays 0.5x, 9-10 pays 0.8x, 11-14 pays 1.2x, 15-19 pays 3x, 20+ pays 7.5x
Those are modest numbers individually, even at the top. A 20+ cluster of the best symbol returns 50x, which tells you the real money in this game is meant to arrive through multipliers and the bonus, not raw cluster values.
Star Symbols and the Collection Boxes
The Star Symbol is a multiplier. It carries a value from 2x up to 500x, and the values on offer run: 2x, 3x, 5x, 7x, 10x, 25x, 50x, 100x, 250x and 500x. When a Star lands in the bottom-most position of the grid, the Collection Box catches it and the multiplier joins a counter for that game round.
More than one Star can land and be collected in the same round, and the multipliers add together rather than multiply each other. A 5x and a 10x collected in the same round make a 15x multiplier, applied to the total win for that round. That counter is where a cascade chain turns into a serious payout.
The Collection Boxes do double duty. They catch Star Symbols for the multiplier counter, and they catch Rat King Symbols for the Free Spins meter. Everything in this game wants to reach the bottom row, which gives every cascade a second thing to watch.
Free Spins Feature
The Rat King Symbol is a scatter. Collect three or more in a single game round and the Free Spins Feature triggers, with the count collected deciding the size of the round:
- 3 Rat King Symbols award 10 free spins
- 4 Rat King Symbols award 15 free spins
- 5 Rat King Symbols award 20 free spins
Rat King Symbols only count once they’re collected in the Collection Boxes at the bottom, so a scatter sitting mid-grid does nothing until cascades pull it down. At the end of a game round the Free Spins meter resets, so collection has to happen within a single round’s cascade chain.
Inside the feature, every Rat King Symbol collected awards three additional free spins, so the round can keep extending itself. Star Symbols behave a little differently here: a collected multiplier applies to the win for that spin, then goes inactive until another multiplier joins the counter.
That inactive-until-refreshed rule is the feature’s whole character. A single big multiplier lands once and burns out, while a steady supply of smaller Stars keeps the counter alive across spins. Chained collections are what carry a round towards the 10,000x cap.
Bonus Buy Options
There are three buy options, each paying for a set number of Rat King scatter symbols and each carrying its own RTP:
- 3 Rat King Scatter Symbols: 100x the base bet, RTP 96.58%
- 4 Rat King Scatter Symbols: 250x the base bet, RTP 96.63%
- 5 Rat King Scatter Symbols: 500x the base bet, RTP 96.93%
The RTP climbs with the price, which is the usual pattern, though the gap is small enough that it shouldn’t drive the choice on its own. What the buys actually change is the starting spin count: 10, 15 or 20, before any retriggers.
Our Honest Verdict
Overall Rating: 8.4/10
Playing Rat King means watching the bottom of the grid more than the wins themselves. Every cascade is a small negotiation over whether a Star or a scatter will sink into the boxes before the chain stops, and in a candy factory run by a rat in a crown, that low-level suspense is the reason to pick it over prettier grid slots.
The collection system is the strongest thing here. Because multipliers stack within a round and free spins extend on every scatter caught, a modest chain can snowball well past what the cluster values suggest. The paytable is the weak point: raw wins are thin even at the top, and long stretches between Stars are quiet ones.
This suits players who like a build, who enjoy nudging a round along rather than waiting on a lucky scatter, and the medium volatility keeps the build affordable. Anyone chasing fat base-game hits will go hungry in this factory.
Rat King FAQs
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How do you trigger the Free Spins Feature in Rat King?
Collect three or more Rat King Symbols in a single game round, via the Collection Boxes at the bottom of the grid. Three symbols award 10 free spins, four award 15 and five award 20. -
What does the Star Symbol do in Rat King?
The Star Symbol is a multiplier carrying a value between 2x and 500x. When collected in a Collection Box, its value is added to the multiplier counter for that game round, and multiple Stars add together rather than multiply each other. -
Can free spins retrigger in Rat King?
Yes. During the Free Spins Feature, every Rat King Symbol collected in a Collection Box awards three additional free spins, so the round can extend indefinitely while scatters keep landing. -
What are Dud Symbols in Rat King?
Dud Symbols are grey symbols with no value. Matching seven or more of a kind clears them from the board and lets new symbols fall in, which can open up fresh winning clusters. -
What is the RTP of Rat King?
The RTP is 96.30%, rising slightly to 96.34% when playing with the Push Bet. The bonus buy options run at 96.58%, 96.63% and 96.93% depending on the tier. -
What is the maximum win on Rat King?
The maximum payout is 10,000x the base bet per game round. Some hypothetically possible results are prevented to enforce this cap, and the restriction is included in the RTP calculations. -
How many paylines does Rat King have?
None in the traditional sense. It’s a scatter-pays game on a 6×6 grid, where any seven or more matching symbols anywhere on the screen form a winning combination. -
What is the minimum and maximum bet on Rat King?
Stakes run from 0.10 to 100 per spin, and bets are selected from the available options in the bet menu.
