Stakelogic launches Sunken City Riches with up to x15,000 top multiplier

Sunken City Riches launched on 26 October 2026 in Malta, with Stakelogic describing a 1,024-ways slot that combines permanent reel modifiers and a banked multiplier mechanic to produce a top multiplier of x15,000. Collectible Treasure Map Scatter symbols unlock four reel-altering features permanently, while a separate Gem Meter stores multiplier values that feed a Mystery Pick Bonus.

How the two meters drive progress

Treasure Map Scatter symbols can appear anywhere on the reels and feed two meters simultaneously. The Treasure Map Meter unlocks a new feature for every four scatters collected. The four features are:

• Payway Maker, which copies a random symbol from reel one across the remaining reels to build a winning way

• Symbols Upgrade, which promotes a random paying symbol to the highest value on the paytable

• Add Wild Multipliers, which drops between one and three multiplier wilds onto the grid

• Split Symbols, which divides up to 10 symbols of differing types

Each feature remains active once unlocked and can trigger at random on later spins; more than one feature may land on the same spin.

Running alongside the Treasure Map Meter, the Gem Meter banks the multiplier values carried by each scatter rather than paying them immediately. Gem values are colour-graded by multiplier bands: green at 1x, blue up to 10x, red higher still, and purple ranging 500x to 1,000x. Once 20 gems have been gathered, the Mystery Pick Bonus opens and the collected gems are carried into a pick round; players choose gears until the Collect Gear is revealed and the resulting multiplier is applied to the stake. The Mystery Pick Bonus can therefore use the banked gem multipliers to produce the headline top multiplier.

Grid, wilds, free spins and staking options

The game runs across 1,024 ways. Wilds land on reels two to five, substitute for every paying symbol, and can be split and multiplied. Free Spins Scatter symbols can land across all reels; three or more trigger the Free Spins Feature and retriggers award three, four or five additional spins. Every unlocked feature is available during free spins, with at least one feature guaranteed on each spin.

Players may activate Super Stake™ for 50% of the base bet to double their chances of triggering free spins, or purchase the bonus outright for 100x their stake. The Free Spins Feature is fully playable with the active meters and unlocked modifiers.

"Sunken City Riches is built around progress that sticks," said James Jelliffe, Head of Slots at Stakelogic.

"Pairing that with the Gem Meter gives players two things to chase at once," Jelliffe added.

Stakelogic says the release is one of its most feature-dense titles to date and positions the two-meter design as the central engagement mechanic.