PREVIEWVault Grab
Genii
Vault Grab is a bank robbery-themed slot by Genii.
The slot is built on a 5x3 reel grid with 20 paylines and offers a theoretical maximum win of x52,800.
It also comes with special features such as Symbol Collector and Morphic Multipliers (Feature Progression), adding collection-based value building and multiplier-driven win scaling.
Specifications
Reel Config
5x3
Paylines
20 Lines
RTP
-
Volatility
-
Max Win
52,800x
Bonus Buy
-
Demo Play
Vault Grab by Genii
Vault Grab by Genii
Special Features
Feature Highlight: Symbol Collector
A Symbol Collector is a powerful special symbol that primarily appears in bonus rounds like 'Hold and Respin'. Its sole function is to 'collect' the values of other cash value symbols (like coins) on the screen and absorb them into its own value. It goes beyond simply adding values, playing the role of consolidating scattered small values into one massive value to exponentially amplify the potential of the bonus round.
Feature Highlight: Morphic Multipliers (Feature Progression)
Morphic Multipliers (Feature Progression) is a unique meta-progression system that permanently enhances the potential of bonus symbols. This feature introduces a long-term goal for players by linking multiplier upgrades to repeated bonus triggers. Upon completing the Hold & Win bonus feature a set number of times, higher multiplier values are unlocked. These unlocked multipliers can then be applied to special bonus symbols in all subsequent Hold & Win features. This creates a persistent sense of achievement and a growing reward potential over multiple play sessions.
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About Previews
Previews focus on playable demo access, slot specifications, and feature structure before a full 300SPINS™ review is available. They are designed to make the slot easy to inspect and compare, while leaving performance judgments based on actual play sessions to full 300SPINS™ reviews.






