John Swamp in: Mummies and Rubies
96%
RTP
20000x
Max Win
- Min Bet
- 0.1
- Max Bet
- 1000
- Release Date
- July 28, 2026
About this Slot
John Swamp in: Mummies and Rubies is an Action and Adventure slot set in Ancient Egypt with a Nature and Gems theme, featuring humor throughout. The game has an RTP of 96%, high volatility and a maximum win of 20,000x.
Scatter Pays awards wins on the 6×5 grid when 10 or more matching symbols land anywhere, regardless of position. Cascading Reels remove winning symbols and drop new ones from above, with the cascade continuing whenever fresh wins form.
Three Scatters trigger the Free Spins Bonus x3, awarding 10 free spins. Each high symbol carries a multiplier that rises by +1 with every win during the feature, capping at x10. Low symbols are removed after the first win in this bonus round.
Four Scatters trigger the Super Bonus x4, awarding 15 free spins. All low symbols are removed from the start of this round, and no retriggers are available.
Hidden Treasure can appear in the base game or during either bonus round, awarding prizes from 5x to 20,000x without using symbol multipliers.
The Feature Buy option lets players purchase direct access to a bonus round or improve their scatter trigger chances. An Ante Bet option is available to boost scatter landing frequency.
John Swamp in: Mummies and Rubies Community RTP
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John Swamp in: Mummies and Rubies RTP Calculator
John Swamp in: Mummies and Rubies has a theoretical RTP of 96%. Its volatility is High, so expect long dry spells punctuated by rare, large multipliers. Its win potential is capped at 20000x your stake. Use the calculator below to estimate your expected return, variance range and risk of ruin over any number of spins.
John Swamp in: Mummies and Rubies Variance Simulator
John Swamp in: Mummies and Rubies sessions can swing far from its 96% average - its volatility is rated High. The simulator runs many virtual bankroll runs to estimate the bust rate, typical drawdown and best/worst outcomes over a set number of spins - compare a cautious bankroll against an aggressive one.
All Wins
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Play on Stake*Frequently asked questions about John Swamp in: Mummies and Rubies
An RTP of 96% means John Swamp in: Mummies and Rubies is built to pay back around 96 for every 100 wagered over millions of spins. Any single session can land far above or below that - use the RTP calculator on this page to model your own bet size and spin count.
Over the long run John Swamp in: Mummies and Rubies's house edge is about 4% of everything you wager - roughly 4 lost per 100 staked. Short sessions vary widely; the calculator above shows the expected loss and variance range for your inputs.
Quite a lot. Because wins cluster around rare big hits, your balance can move far from the 96% average in either direction. The variance simulator above shows typical drawdowns, bust rate and best/worst outcomes for your bankroll.
It depends on your bet size and how long you want to play John Swamp in: Mummies and Rubies. Use the variance simulator above to test a cautious versus an aggressive bankroll and see how often each survives your target number of spins.
