Jungle Jim and the Lost Sphinx moves Stormcraft Studios' explorer out of the South American rainforest and drops him in the Egyptian desert, hunting a buried monument rather than a lost city. It is the follow-up to Jungle Jim El Dorado, the 2016 cascade slot that became one of Microgaming's most played titles, and it keeps the feature that made the original work: Rolling Reels, where winning symbols are cleared away, fresh ones fall into the gaps and a multiplier trail climbs with every consecutive win. Players like it for the same reason they liked the first game: one lucky spin can carry on paying through several rolls before it runs dry.
How Jungle Jim and the Lost Sphinx plays
The reels are five wide and four symbols deep when a spin begins, with 35 paylines running across them, and the grid stretches to five rows and 50 paylines as the action develops. Jim himself heads the paytable alongside a book, a chest and an ornate vase, with coloured gemstones filling in the lower end. The Jungle Jim logo is the wild and stands in for everything except the scatter and the Sphinx.
Rolling Reels drives the whole game. Any winning combination removes the symbols involved, the survivors drop down and replacements arrive from above, so a single payline can turn into a run of four or five. Each successive roll nudges the multiplier trail up, from 2x through 3x, 4x and 5x to a 10x ceiling in the base game. If a third roll fails to land a win, a second chance respin gives the sequence one more opportunity before the multiplier resets.
Scatters bring in the free spins round, which starts with 12 spins and a beefier trail that opens at 2x and tops out at 20x. Sphinx symbols are what make that round tick: land one and it is collected and taken off the reels, which triggers a further roll and can keep a multiplier alive when the paylines have gone quiet. There is also an optional Win Booster, which raises the cost of every spin in return for a better chance of reaching the bonus.
Jungle Jim and the Lost Sphinx RTP, volatility and max win
The headline RTP is 96.3%, which sits a shade above average for a Games Global release of its era. Stormcraft shipped the game in more than one configuration, though, and some operators run a slightly lower build, so open the in-game information screen and read the figure your casino has actually set before staking anything. Volatility is high. In practice the paylines alone rarely cover the cost of a spin, and the maths leans on the free spins, where longer cascades and the bigger trail do the real work. Expect quiet stretches and a balance that moves in steps. The maximum win is 6,250 times the stake, and reaching it takes a long chain of rolls inside the bonus with the multiplier near the top of the trail, so treat it as a rare outcome rather than a target.
Playing Jungle Jim and the Lost Sphinx
The game is widely stocked at UK online casinos, and the operators listed on this page carry it. You can try the demo above first, which runs on play money with no account and no deposit needed, and it shows how often the trail really climbs past the first couple of steps. Where a casino attaches free spins to this title, those spins carry their own wagering requirements and expiry rules, so read the promotion terms rather than assuming anything won from them arrives as straightforward cash.
Is Jungle Jim and the Lost Sphinx worth playing?
It is worth a look if cascading reels appeal and you got on with El Dorado, because this is the same idea with an Egyptian coat of paint and a stronger bonus round attached. Anyone who prefers frequent small returns, or who wants a feature buy and a six-figure win cap, will find it dated next to newer releases. The thing to watch is the multiplier trail itself, since a rising number on screen makes it easy to keep spinning in the belief that a run is owed to you, and the Win Booster speeds up how fast a balance drains. Pick a stake you would be content to lose across a flat hour of nothing at all, and if you want to set deposit limits or use blocking tools, our responsible gambling guide explains how.
Frequently Asked Questions
The published RTP is 96.3%. Stormcraft Studios released the game in more than one RTP configuration and the operator chooses which build to run, so check the in-game information screen at the casino you are playing at rather than relying on a listing elsewhere.
The win cap is 6,250 times your stake. It needs a long run of Rolling Reels inside the free spins round with the multiplier trail sitting near its 20x top step, which is an unlikely combination on any given session.
Yes. It is a high volatility slot, so wins arrive unevenly and the bulk of the return is tied up in the free spins. Quiet spells are normal and the base game rarely sustains a session on its own.
Yes. The demo on this page runs on play money with no account, registration or deposit required, which lets you see how the cascades and the multiplier trail behave before you decide whether to play for real money.
Scatters trigger a round of 12 free spins with an enhanced multiplier trail that starts at 2x and climbs to 20x. Sphinx symbols landing during the round are collected and removed from the reels, which sets off another roll and can extend a winning sequence.
No. Both come from Stormcraft Studios and share the Rolling Reels mechanic and the same explorer, but the Lost Sphinx has an Egyptian theme, an expanding grid, the Sphinx collection feature and a different bonus round and win cap.