


Cauldron is a high-volatility online slot from Peter Sons with an RTP of 96.04% and a maximum win of 2,222x.
Page updated July 2026
Cauldron continues Peter & Sons' run of fantasy-flavoured releases, this time pulling players into the caves of Algroth, where a blue wizard conjures wins from a bubbling pot. Played across 5 reels and 20 paylines, it's another chapter in the studio's ongoing fantasy lore, built primarily around free spins and a beefed-up super free spins mode.
The visual identity is instantly recognisable as a Peter & Sons production, with a cartoon, pop-up-book art style that gives Cauldron real character — a wizard looms above the reels, hands raised, waiting for the magic to trigger. It's a distinctive, appealing look that stands out clearly from the generic fantasy slots that flood the market, and fans of the studio's earlier Algroth-set titles will feel right at home here.
Cauldron uses a scatter collection system as its central mechanic, gradually building towards free spins rather than triggering them purely at random — and that progress resets to zero if you switch bet levels, so it's worth settling on a stake before committing to a longer session, since any progress made is otherwise saved if you return to it. Regular free spins land roughly once every 232 spins, a fairly low base-game frequency given there are no other modifiers along the way, which makes the scatter collection meter a useful bit of visible progress to chase in the meantime.
Cauldron carries an RTP of 96.04%, just edging past the informal 96% benchmark many players use to judge slot fairness. It's rated high volatility, and the hit frequency sits at 20.29% — roughly one in five spins produces a return, consistent with a game built around bigger, less frequent payouts rather than steady small wins. Low pays come from apple cores, ginseng, mushrooms, and Venus flytraps, while higher-value symbols include wasps, spiders, bats, frogs, and rats.
The maximum win on Cauldron reaches 2,222x the stake — a themed, memorable number rather than a round one, and while it's more modest than some high-volatility fantasy slots, it's still a genuinely rewarding ceiling given the relatively steady hit rate underpinning it. Stakes run from 0.10 up to 100 per spin, playable on any device.
Cauldron offers a distinctive art style, a patient but rewarding scatter-collection build-up, and a solid 96.04% RTP, making it a strong choice for fans of Peter & Sons' fantasy universe who don't mind waiting a little longer between free spins triggers. The visual charm alone makes it worth a look. Try the free demo on johnessyslots to see the wizard and his bubbling pot in action before playing for real stakes.
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Cauldron has an RTP (return to player) of 96.04%. RTP is the theoretical percentage of total stakes a slot returns to players over a very large number of spins, as published by Peter Sons — individual sessions can land far above or below it.
Cauldron is rated high volatility. High-volatility slots pay out less often, but wins tend to be bigger when they land — expect longer dry spells and larger swings to your balance.
The advertised maximum win for Cauldron is 2,222x. Max wins are extremely rare by design — treat them as a ceiling, not an expectation.
Cauldron is developed by Peter Sons and was released in May 12, 2021.
Verified Data via Johnessy AI