Maelstrom

Maelstrom is a underwater adventure-themed slot by Hyper Play.

The slot is built on a 6x5 reel grid with cluster pays and offers a theoretical maximum win of x50000x.

It also comes with special features such as Cluster Pays and Cascading Reels, adding cluster-based hit patterns beyond fixed lines and repeat-win chances from cascading symbol drops.

Specifications

Reel Config

6x5

Paylines

Cluster

RTP

96.7%

Volatility

Max Win

50,000x

Bonus Buy

500x

Demo Play

FeatureMatch™

Bonus-mode mechanics take the lead

Bonus-related stages with distinct rules form the most represented role in this profile. The free-spin family represents a part of the game’s bonus mechanics.

Feature richness

A large feature set adds multiple mechanical layers to the game, with a wider range of special systems represented in its design.

Feature mechanics: 8
Feature families: 5

Feature profile

Select a role to explore its contributing features.

Number of features contributing to each role. One feature can contribute to several roles.

How we analyze this game’s features

Each bar counts the features that contribute to a functional role. One feature can contribute to more than one role. Bar lengths are scaled to the largest count within this game; compare the numbers when looking across games.

These counts describe feature composition. They are not win probabilities, payout contributions, or quality ratings.

All features 11

Cluster Pays Cascading Reels Instant Prize Symbol Symbol Collector Multiplier Symbol Standard Scatter Multi-Mode Free Spins Retrigger Ante Bet Feature Spin Pre-Game Mode Bonus Buy

Highlight Features

Cluster Pays

The Cluster Pays system is an innovative winning method that completely breaks the traditional slot concept of 'lines'. In a typical slot, symbols must be placed sequentially from the left on a designated payline to be considered a win. However, in the Cluster Pays method, there are no lines at all. Instead, symbols like candies or jellies cascade down onto a large grid (usually 5x5 or larger). There is only one condition for a win: identical symbols must connect horizontally or vertically to form a cluster.

Retrigger

A Retrigger means winning additional free spins by landing scatter symbols again during a free spins bonus round. Furthermore, some slots adopt an 'unlimited retrigger' system, which means there is no limit to the number of times it can re-trigger. In theory, if luck is on your side, the free spins can continue indefinitely, making it one of the most powerful features a slot can have.

Bonus Buy Efficiency

Price x500

High Bonus Buy Price

This slot's bonus buy price is above the usual range for comparable slots, so buying the feature is not the default recommendation. It may still be worth considering if the free-spin round offers unusually strong mechanics, higher volatility, or a payout profile that is meaningfully richer than standard features. Without that extra upside, the buy price may feel expensive relative to typical bonus buys.

Avg. Min x81.6Avg. Max x129.1

LowExpectedHigh

About Previews

Each SlotWise Preview examines a game’s rules, specifications, and special features. We identify individual mechanics and map them to standardized feature categories, then use FeatureMatch™ to describe the game’s mechanical character. Alongside free demo access, this gives you a consistent starting point for understanding and comparing games. Where a 300SPINS™ review is available, it adds observations and results from a recorded play session.