Sunken City Riches Unlocks Four Features Through the Treasure Map Meter
Sunken City Riches follows a treasure hunt toward a legendary underwater city, with an adventurous monkey helping along the way. Its main mechanics revolve around Treasure Map Scatter Symbols, two progression meters and four unlockable features, while the Gem Meter leads to the Mystery Pick Bonus.
Sunken City Riches Game Details
| Category | Details |
| Provider | Stakelogic |
| Release Date | October 26, 2026 |
| Game Type | Standard |
| Game Category | Video Slot |
| Payways | 1,024 |
| RTP | 96.01% |
| Volatility | ★★★★★ |
| Max Multiplier | x15,000 |
| Max Win | €450,000 |
| Bonus Features | Treasure Map Meter Features, Mystery Pick Bonus, Free Spins, Bonus Buy, Super Wheel™, Spin to Win™ |
Sunken City Riches Base GameplayTreasure Map Scatters Feed Two Meters
Treasure Map Scatter Symbols can land on all reels and are collected by both the Treasure Map Meter and Gem Meter.
Each Treasure Map Scatter carries a multiplier value determined by its colour: green x3–x10, blue x15–x25, red x50–x250 and purple x500–x1,000. These multiplier values are collected in the Gem Meter and become part of the Mystery Pick Bonus.
The Treasure Map Meter follows a different progression. Every four collected Treasure Map Scatters unlock another feature, with the four features opening in a fixed order.
Four Features Unlock Along the Treasure Map
The Payway Maker Feature unlocks after 4 Treasure Map Scatters. It randomly selects one symbol from the first reel and copies it across the remaining reels to form a payway.
At 8 Scatters, the Symbols Upgrade Feature becomes available, upgrading a random paying symbol to the highest-paying symbol.
Collecting 12 Scatters unlocks Add Wild Multipliers. The feature adds between 1 and 3 Wilds to random positions, with possible Wild multipliers of 1, 2, 3, 4 or 5.
The fourth milestone arrives at 16 Scatters with the Split Symbols Feature, which splits between 1 and 10 randomly selected symbols of different types.
Once unlocked, these features can trigger randomly on later spins, and multiple features can activate during the same spin.
Gem Meter and Mystery Pick Bonus
While the Treasure Map Meter tracks the number of Scatter Symbols, the Gem Meter collects their multiplier values. Filling the Gem Meter with 20 Gems triggers the Mystery Pick Bonus.
The 20 collected Gems are transferred into the bonus, where Gears are selected to reveal multipliers. The feature begins with 3 picks, while some Gears can award an additional pick. Up to 4 extra picks can be added, allowing a maximum of 7 picks in total.
Once no picks remain, the revealed multiplier values are combined and the resulting total multiplier is applied to the bet. After the Mystery Pick Bonus, the Gem Meter can begin filling again.
Sunken City Riches Gem MeterFree Spins and Retriggers
Landing 3 or more Free Spins Scatter Symbols triggers the Free Spins feature:
- 3 Scatters – 8 Free Spins
- 4 Scatters – 10 Free Spins
- 5 Scatters – 12 Free Spins
The feature can also be retriggered. During Free Spins, 3 Scatters add 3 spins, 4 Scatters add 4 spins, and 5 Scatters add 5 spins.
Sunken City Riches Free SpinsSunken City Riches also includes Bonus Buy, Super Wheel™ and Spin to Win™ alongside its meter-based features and Free Spins.
Sunken City Riches Builds Around Two Progress Meters
Sunken City Riches keeps its main progression divided between two connected systems. Treasure Map Scatters gradually unlock Payway Maker, Symbols Upgrade, Add Wild Multipliers and Split Symbols, while their multiplier values simultaneously build the Gem Meter toward the Mystery Pick Bonus.
Free Spins add a separate retriggerable feature, but the core structure remains focused on collecting Treasure Map Scatters and turning that progress into additional reel features and bonus opportunities.
