Jungle Jim and the Lost Sphinx - Game Overview
Jungle Jim and the Lost Sphinx is a sequel to the well-received Jungle Jim El Dorado, developed by Stormcraft Studios exclusively for Microgaming and released in November 2019. The game shifts its setting from the jungle to an Egyptian desert, placing the returning explorer against a backdrop of ancient tombs and sand dunes. It runs on a 5-reel, 4-row grid with a variable payline structure ranging from 35 to 50 lines, depending on in-game mechanics.
Betting runs from a minimum of 0.10 up to 20 coins per spin, making it reasonably accessible across bankroll sizes. The slot carries a published RTP of 96.30% and is classified as high volatility, with a maximum win potential of around 6,250x the stake. The visual presentation is polished, with well-rendered character models and a goblet drum soundtrack that suits the desert theme without becoming intrusive.
Symbols and Paytable in Jungle Jim and the Lost Sphinx
The paytable in Jungle Jim and the Lost Sphinx is split between lower-value gemstones of various colours and a set of higher-paying thematic icons. These premium symbols include old books, ornate pots, and treasure chests. The most valuable standard symbol is the Jungle Jim character himself, offering the largest line payouts.
The wild symbol takes the form of the Jungle Jim logo and substitutes for all regular symbols. A dedicated scatter triggers the free spins round, while a special Sphinx symbol appears exclusively on reel 3 during the bonus game and serves a distinct function. The symbol hierarchy is clear enough, with the thematic icons doing most of the heavy lifting for significant base game wins.
Symbol Payouts
| Symbol | Payout |
|---|---|
 | Scatter |
| 5+ → x20 | |
| 4 → x10 | |
| 3 → x5 | |
 | 5 → x10 |
| 4 → x2.5 | |
| 3 → x1 | |
 | 5 → x5 |
| 4 → x2 | |
| 3 → x0.8 | |
 | 5 → x4 |
| 4 → x1.5 | |
| 3 → x0.6 | |
 | 5 → x2.5 |
| 4 → x1 | |
| 3 → x0.4 | |
 | 5 → x1.2 |
| 4 → x0.5 | |
| 3 → x0.2 | |
 | 5 → x1.2 |
| 4 → x0.5 | |
| 3 → x0.2 | |
 | 5 → x1 |
| 4 → x0.3 | |
| 3 → x0.1 | |
 | 5 → x1 |
| 4 → x0.3 | |
| 3 → x0.1 | |
 | Special |
 | Wild |
Bonus Features in Jungle Jim and the Lost Sphinx
The core mechanic here is Rolling Reels, Microgaming's established cascading system where winning symbols are removed and new ones drop in from above. In Jungle Jim and the Lost Sphinx, consecutive cascades do more than simply clear space - they increase a win multiplier from x1 up to x10 and expand the active paylines from 35 to 50. This creates a compounding effect that can build value quickly during a good run.
A Second Chance Respin activates if no winning combination forms after the third consecutive cascade, giving the reels one more opportunity to connect. The main event, however, is the Free Spins round, triggered by landing three, four, or five scatter symbols, which awards 12 free spins along with an initial payout of 5x, 10x, or 20x the stake respectively. Free spins play out with all 50 paylines active from the start.
During the bonus round, the Sphinx symbol on reel 3 grants an additional free spin and raises the multiplier by one each time it appears. For players unwilling to wait for a natural trigger, a Win Booster side bet is available at 4x the total stake, reducing the scatter requirement to just two symbols. With the Win Booster active, the feature can reportedly deliver up to 1,560x the stake on its own terms.
Jungle Jim and the Lost Sphinx - Volatility, RTP, and Win Potential
At 96.30%, the RTP of Jungle Jim and the Lost Sphinx sits comfortably above the industry average and is competitive within the Microgaming catalogue. High volatility means dry spells are part of the experience, but the multiplier system tied to Rolling Reels provides a clear path to larger payouts when cascades chain together. The quoted maximum win of roughly 6,000x to 6,250x the stake places it in respectable territory for a slot of this era, though it falls short of more modern high-cap titles.
Final Verdict on Jungle Jim and the Lost Sphinx
Jungle Jim and the Lost Sphinx functions as a competent sequel that retains the Rolling Reels framework of its predecessor while layering on a variable payline system and escalating multipliers. The Egyptian setting is well-worn ground in slots, but Stormcraft Studios have produced a version that feels distinct enough through its mechanics and presentation. The Win Booster option adds a strategic element, though its 4x cost warrants careful consideration relative to bankroll management.
For players who valued the original Jungle Jim El Dorado, this is a natural progression with meaningful upgrades. It is not a groundbreaking release, but it delivers a solid combination of features, fair RTP, and genuine top-end potential. A reliable mid-range choice for UK players who prefer structured bonus mechanics over sheer spectacle.
In-Game Screenshots
Jungle Jim and the Lost Sphinx FAQ
Jungle Jim and the Lost Sphinx — Comparison
| Game | RTP | Volatility | Max Win | Rating |
|---|---|---|---|---|
| 96.30% | High | x6250 | 6 | |
| 96.88% | High | x3181 | 6 | |
| 96.89% | High | x11363 | 6 | |
| 96.30% | High | x9000 | 8 | |
| 92.67% | Average | x800 | 7 | |
| 96.1% | High | x15000 | ||
| 96% | Average | x10000 | ||
| 96% | High | x8000 | 8 | |
| 93.34% | Low | x500 | 7.5 | |
| 96.36% | High | x1000 | 7 | |
| 96.35% | High | x100 | 8.5 | |
| 96.27% | Average | x10000 | 9 | |
| 96.37% | 94.1% | 92.1% | High | x30000 | 8 | |
| 96.88% | High | x3200 | 6 | |
| 96.77% | Average | x800 | 5.5 | |
| 96.6% | Low | x300 | 5 | |
| 96.47% | Average | 7 | ||
| 95.22% | 94.04% | 92.04% | High | x2113 | 5.3 | |
| 96.4% | Average | x5000 | 7.3 | |
| 96.47% | Average | x5000 | ||
| 96.33% | Average | x5300 | ||
| 96.44% | High | x10000 | ||
| 96.33% | Average | x10000 | 7 | |
| 96.33% | High | x5300 | ||
| 96.20% | High | x5000 | ||
| 96.44% | Average | x1000 | ||
| 96% | High | x5000 | ||
| 96.21% | 94.17% | 92.23% | High | x10000 | 8.5 | |
| 96.38% | Average | x500 | 5 | |
| 96.05% | High | x5000 |
