3 Secret Cities Slot Review
4ThePlayer have established themselves with releases that prioritise innovation over trend-chasing, and 3 Secret Cities exemplifies this approach perfectly. Launched in May 2021, this Aztec-themed adventure stands apart from the crowded jungle temple category through its distinctive BONUS UP progression system – a unique mechanic that rewards patience with escalating free spins tiers across three mythical cities.

Base Game & Features
The game operates across 5 reels and 4 rows, delivering 1,024 ways to win rather than traditional paylines. The Aztec temple aesthetic features thematic premium symbols – the Priestess, Explorer, and Panther – alongside mid-tier symbols like the Necklace and Golden Snake, with card values completing the paytable.

Base game action feels deliberately measured. With a hit frequency of approximately 20%, most spins result in losses, which is intentional design philosophy for a very high volatility offering. This pacing creates extended dry spells between winning combinations, demanding patience from players accustomed to more frequent payouts. The strategy isn’t base game action – it’s building momentum toward the bonus features.
The BONUS UP Progression System
BONUS UP is where 3 Secret Cities truly distinguishes itself. Landing just 2 scatter symbols triggers a pick-a-prize feature offering two choices: accept an immediate cash prize (up to 50x your bet), or progress your journey to the next city tier. This creates genuine strategic engagement – do you take the guaranteed cash or gamble for better rewards?
The three-city progression structure (Jungle City, Lake City, Gold City) adds narrative depth to gameplay. Each tier advancement sets you up for superior free spins rewards when the full bonus eventually triggers. Community feedback consistently highlights how this progression system creates emotional investment beyond typical spin-based engagement – reaching Gold City feels like an accomplishment, not just luck.
Temple Pick Feature & Free Spins Tiers
Landing three scatter symbols on reels 1, 3, and 5 opens the Temple Pick feature. You click blocks within a temple layout to reveal your free spins allocation, multiplier value, and a randomly selected super stacked symbol that will dominate during your bonus round.
The three free spins tiers reflect your progression status:
- Jungle City: Up to 15 free spins with x5 multiplier (maximum win potential 12,000x-16,000x)
- Lake City: 25 free spins with x8 multiplier (maximum win 30,000x)
- Gold City: 50 free spins with x15 multiplier (maximum win 50,000x)
Super stacked symbols during free spins dramatically increase win frequency and payout size. The variance is enormous – you might hit a 10,000x+ win or walk away with just a few hundred times your stake. This unpredictability reflects the game’s very high volatility throughout.
3 Secret Cities Bonus Features
The bonus experience is where 3 Secret Cities delivers on its high volatility promise. The BONUS UP system’s progression reset mechanic divides player opinion. Some appreciate the strategic climb through cities and find the risk-reward balance compelling. Others find the reset frustrating when 2 scatters offer cash instead of tier progression – it can feel like stepping backward.

That said, reaching Gold City and triggering 50 free spins with a x15 multiplier justifies the extended base game patience. The 50,000x maximum win isn’t theoretical – community reports from launch show genuine 10,000x+ wins achieved within days, suggesting the ceiling is legitimately achievable rather than disconnected from reality.
One important detail: Bonus Buy is available to non-UK players only (costs 50x/100x/200x bet for respective tiers). This feature boosts RTP to 98% for eligible players but isn’t available in the UK due to gambling regulations. Standard RTP remains 96.5%, which is above-average and competitive.

Our Honest Verdict
3 Secret Cities – 8/10
3 Secret Cities delivers genuine innovation in a crowded market. The BONUS UP progression system and Temple Pick feature add meaningful interactivity that elevates the experience beyond standard free spins. 4ThePlayer have created something that respects player intelligence and rewards engagement.
The 96.5% RTP combined with very high volatility suits experienced players prepared for extended dry spells between wins. The 50,000x maximum win is legitimately achievable, with the Aztec theme – complete with lively cartoon animation and powerful jungle soundtrack – executed beautifully throughout.
Where 3 Secret Cities demands respect: this isn’t for casual players or those seeking instant gratification. The 20% hit frequency creates long stretches without payouts. The progression reset system, whilst innovative, polarises opinion between those who find it strategic and those frustrated by setbacks. If you’re new to very high volatility slots, approach cautiously before committing larger stakes.
For the target audience – experienced high-volatility enthusiasts seeking something fresh – 3 Secret Cities stands among 4ThePlayer’s strongest releases. It respects your bankroll discipline whilst rewarding patience with genuine excitement.
3 Secret Cities FAQs
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What is the RTP of 3 Secret Cities slot?
The 3 Secret Cities slot has a default RTP value of 96.5%, which rises to 98% if you buy the bonus round (not available to UK players). The 96.5% RTP is above-average and competitive in the current market. -
What is the maximum win on 3 Secret Cities?
3 Secret Cities offers a maximum win of 50,000x your bet, achieved through the Gold City tier with 50 free spins and a x15 multiplier. Realistically reaching this consistently requires serious patience and bankroll discipline, though the ceiling is genuinely achievable based on player reports. -
How volatile is 3 Secret Cities slot?
3 Secret Cities is a highly volatile slot rated 5/5 on 4ThePlayer’s own volatility scale – the maximum rating. Very high volatility means most payouts are small with bigger prizes sporadic. Combined with a 20% hit frequency, expect extended dry spells between winning combinations. This game suits experienced players only. -
What is the BONUS UP system in 3 Secret Cities?
The BONUS UP system is a unique 4ThePlayer feature where landing 2 scatters triggers a pick-a-prize bonus. You choose between immediate cash (up to 50x) or progression to the next city tier. Advancing through Jungle, Lake, and Gold City improves your free spins rewards when the main bonus eventually triggers. -
Does 3 Secret Cities have free spins?
Yes, 3 Secret Cities features three progressive free spins tiers unlocked through the BONUS UP system. Jungle City offers up to 15 spins with x5 multiplier, Lake City offers 25 spins with x8 multiplier, and Gold City offers 50 spins with x15 multiplier. Super stacked symbols appear during free spins to boost win potential.


