Chain Reaction Hold & Blitz is a fruit and gem-themed slot by Iron Dog Studio.
The slot is built on an irregular reel setup with 9 paylines and offers a theoretical maximum win of x12500x.
It also comes with special features such as Hold and Respin and Fixed Jackpot, adding locked-symbol bonus tension and extra jackpot targets alongside regular wins.
Reel Config
Irregular
Paylines
9 Lines
RTP
95.2%
Volatility
-
Max Win
12,500x
Bonus Buy
70x
Two roles are especially well represented here: separate prizes and persistence and growth. Special-purpose symbols provide a route to separate prizes. Spin-related mechanics include a state that persists or develops as play proceeds.
A moderate feature set suggests a balance between familiar slot gameplay and the added variety of special mechanics, with several features to explore alongside the core spin-and-win format.
Select a role to explore its contributing features.
Number of features contributing to each role. One feature can contribute to several roles.
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.
Hold and Respin, or 'Hold & Win', is one of the most popular core bonus game mechanics in modern slots. The essence of this feature, unlike traditional free spins, is to 'Hold' bonus symbols on the reels and 'Respin' the remaining empty spaces to fill up the screen. This system was popularized worldwide through 'Money Train 2's' 'Money Cart Bonus' and is the foundation for numerous developer-specific brand features like Wazdan's 'Hold the Jackpot™' and Playtech's 'Fire Blaze™'.
A Reel Multiplier is a unique system where a multiplier is not tied to a specific symbol or spot, but grows and is attached to an entire reel (vertical column). If any symbol on that reel is part of a winning combination, the multiplier held by that reel is applied to the entire prize. The core of this feature, which affects a wider area than a 'Positional Multiplier', is to provide a new kind of strategic fun where the player feels like they are 'growing the reel itself'.
Low Bonus Buy Price
This slot's bonus buy price is below the usual range for comparable slots. That makes buying the feature relatively accessible, especially if you want to try the free-spin round directly. Keep in mind that some games offer multiple free-spin tiers, and SlotWise uses the lowest available buy price as the reference. A lower price may also mean that the free-spin feature itself carries a lighter payout profile than higher-priced games.
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.
