Cauldron Slot Review
A giant pair of pale, long-fingered hands reaches down from the top of the screen to stir a brew that glows toxic green, and it never stops stirring. Cauldron, from Peter & Sons, is one of the few collection slots where the base game openly admits it’s just the fuel: nearly everything interesting here is banked towards a bonus you have to brew one scatter at a time.
It’s a 5×3 game with 20 paylines, 96.1% RTP and high volatility, with a 2,222x maximum win. Fans of the studio’s work on Animafia and Frozen Age will recognise the hand-painted style immediately. Beneath the neon, this is a slot about patience, and the bonus round pays it back with interest.
Base Game & Features
Cauldron runs on a classic 5×3 grid with 20 paylines, evaluated from left to right, and only the biggest win per line is paid. The setting is a hand-painted jungle shack, all saturated toxic-green glow, with a carved wooden signboard hanging on chains above the reels and a small glowing vial standing in for one of the letters.
The wizard behind all this belongs to the world of Algroth, where the old book collects heroes, villains and events from the deep past. Legend says he poured his knowledge and strength into the cauldron, and it grew into the source of dreams. Adventurers still hunt for it. Nobody’s found it yet.
The symbols split into high and low tiers, drawn from the brew-shack’s jungle: flowers, plants, a bat plant, a root creature, a wasp, mushrooms, berries and a ladybug. All pays below are multiples of the total bet, and five of the top flower is the biggest single line the game offers.
- Purple Flower: 2.5x for three, 10x for four, 50x for five
- Red Spider Flower: 1.5x, 7.5x, then 50x for a full line
- Green Pitcher Plant: 1.25x at three, 6.25x at four, 20x at five
- Purple Bat Plant: pays 1x, 4x and 12.5x
- Brown Root Creature: pays 1x, 3.5x and 10.5x
- Yellow Wasp: 0.75x, 3x, 9x
- Pink Thorn Flower / Red Mushroom: 0.5x, 2x and 6x respectively
- Purple Berries / Brown Mushroom / Red Ladybug: the bottom tier, at 0.25x, 1.25x and 5x
Note how flat the top of that table is. The two flowers both pay 50x for five, and the gap between the tiers is gentle rather than cliff-edged. Wins here come from stringing paylines together, not from hunting one hero symbol.
Line wins are counted the conventional way: three or more identical symbols in sequence from the leftmost reel, with only the highest combination per line paid out. One wrinkle worth knowing: if a winning combination starts with three wilds, there can be several ways to read it, and only the highest of those counts.
Wilds appear only on the middle three reels, and they stand in for any symbol except the scatter. They can’t help fill the meter, and they can’t complete a scatter trigger, so their whole job is line wins.
The scatter is the bonus symbol, it pays anywhere, and its wins are multiplied by the total bet and added to the payline wins. Unlike every other symbol it doesn’t need to sit on a payline at all. Every scatter that lands also feeds a counter beside the reels, and that counter is the game’s long game.
The counter runs from 0 to 750, one point per scatter. Progress is stored per bet level: the more you stake, the faster the meter fills, and switching bets means switching meters. It’s a design that rewards settling on a stake and staying put, and one worth knowing about before you start spinning.
Cauldron Free Spins & Super Free Spins
Three or more scatters trigger the free spins round, which starts with 10 free spins. The round is where Cauldron stops being a standard 5×3 and becomes something else. Every win inside the bonus changes the reelset, and every change buys you another spin.
Upgrades and Removals
Win on a high-paying symbol and that symbol is upgraded, paying double on every subsequent spin. Each upgrade awards one additional free spin, and a symbol can only be upgraded once. Win on a low-paying symbol and it’s removed from the reels entirely, never to return, and each removal also awards one additional free spin.
The round therefore cleans itself as it goes. Early spins churn through the low symbols, thinning the reelset; later spins land on a board with fewer junk symbols and doubled high payers. Scatters aren’t collected towards the meter during the free games, so the round can’t feed its own super trigger. Both the bet level and the paylines stay locked to the triggering spin throughout.
Super Free Spins
Filling the 750-point scatter meter unlocks Super Free Spins, which start with every high symbol already upgraded and every low symbol already removed. Ten spins are awarded, and the same mechanics apply from there. With the low symbols gone there’s nothing left to remove, so the extra spins from here come from upgrades alone.
If free spins and super free spins trigger at the same time, the standard round plays first, then the super round follows. Any wins from the first round are added to the balance along with the triggering spin’s win before the second begins.
That’s the whole architecture of the game: a long collection grind in the base game that ends in a bonus round played on a gutted, doubled reelset. Free spins are the warm-up, and the super round is the finished board the whole meter exists to reach.
Our Honest Verdict
Overall Rating: 7.3/10
Playing Cauldron mostly means watching a pot that refuses to boil. You spin, you land the odd line win, and the scatter meter inches up beside the reels like the brew slowly thickening. That’s not a complaint about the artwork carrying you, either: the paytable is flat enough that the base game was never going to be the attraction.
The attraction is a bonus round that gets better the longer it runs, which is rarer than it sounds. Most free spins rounds give you a fixed board and hope for the best; here every win visibly improves the board you’re playing on, and the super round hands you the finished version from spin one. That escalation is the whole reason to pick it.
But 750 scatters is a genuinely long simmer, and the meter is per bet level, so changing stakes quietly abandons your progress. If you’re the sort to sit at one stake and let a pot do its work, Cauldron rewards the discipline; if you want your bonus rounds close together, this simmer will try you. For the patient type, it’s one of the more rewarding pots in the shack.
Cauldron FAQs
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What is the RTP of Cauldron?
The RTP is 96.1%. -
Is Cauldron high volatility?
Yes, Cauldron is a high volatility slot. -
How do you trigger free spins in Cauldron?
Three or more scatter symbols anywhere on the reels start the free spins round. You get 10 free spins, and the round runs at the bet level and paylines of the spin that set it off. -
How do you unlock Super Free Spins in Cauldron?
Every scatter that lands adds one point to a meter beside the reels. When the meter reaches 750 points, Super Free Spins unlock, starting with all high symbols upgraded and all low symbols removed. Progress is stored per bet level. -
What does a win on a symbol do during Cauldron’s free spins?
A win on a high-paying symbol upgrades it to pay double on subsequent spins, while a win on a low-paying symbol removes it from the reels entirely. Both award one additional free spin. -
Do scatters count towards the Super Free Spins meter during free spins?
No. During the free games, scatters aren’t collected towards the progress meter, so the round can’t advance its own super trigger. Collection only happens in the base game. -
What happens if free spins and Super Free Spins trigger at the same time?
The standard free spins round plays out first, then the Super Free Spins round follows. Wins from the first round are added to your balance along with the triggering spin’s win before the super round begins. -
What is the maximum win on Cauldron?
The maximum win is 2,222x your bet. -
What is the hit frequency of Cauldron?
The hit frequency is 20.29%, so roughly one spin in five produces a win. -
What are the minimum and maximum bets on Cauldron?
Bets run from 0.20 to 100 per spin. -
Can a symbol be upgraded twice during free spins?
No. A high symbol can only be upgraded once per round, so it pays double at most. Removals are also permanent within the round – a deleted low symbol never reappears on later spins.
