Greentube Unveils Rumble Riches Haulin Gold Slot

Greentube has introduced a new online slot, Rumble Riches™ Haulin’ Gold™, expanding its portfolio with a release centered on a trucking theme and feature-driven gameplay. The title is now accessible to B2B partners, offering a design that combines multiple bonus mechanics within a five-reel format.

New Slot Release Focuses On Feature-Driven Gameplay

The game places players alongside a trucker character and his companion, presenting a road-themed setting built around 50 fixed paylines. The 5x3 layout incorporates several modifiers intended to influence outcomes during both base spins and bonus rounds.

At the center of the gameplay sits the Rumble Riches™ feature, which can activate during standard play or free spins. This mechanic introduces either Add Coin or Add Wild elements. The Add Coin option places at least six coin symbols onto the reels, while Add Wild inserts a minimum of four wild symbols across reels two through five. When wilds overlap with coin or scatter positions, both symbols remain visible.

Free Games also form part of the structure, with three Bonus scatter symbols triggering eight spins. These scatter symbols appear only on the middle reels, and once the feature begins, additional free spins cannot be retriggered.

Lock & Spin Mechanic Introduces Expanding Reel System

A separate bonus layer appears through the Lock & Spin feature, which activates when coin symbols reach the required threshold. This mode starts with three spins, resetting each time a new symbol lands. During the sequence, coin values lock in place and are collected at the end of the feature.

The system can expand significantly, with up to 30 reels available as rows unlock. Each Row Unlock symbol activates one of three locked rows, adding additional reels to the grid. When all rows become active, further unlock symbols trigger the Gold Convoy bonus.

Within Lock & Spin, several themed truck symbols alter gameplay. The Red Truck collects all visible coin values and converts into a coin symbol displaying the total. The Purple Truck enhances coin values during spins and remains active once introduced. The Blue Truck raises all coin values simultaneously, while the Green Truck initiates a convoy sequence that aggregates cash amounts and jackpots.

During the feature, only specific symbols remain in play, including coins, trucks, row unlocks, and shutter elements. If the spin counter reaches zero, there is a chance for an Add Coin bonus to reactivate the sequence by placing another coin and resetting spins.

Convoy Bonus And Additional Features Extend Play

The Gold Convoy bonus follows the completion of Lock & Spin when triggered. This sequence sends a series of gold trucks across the screen, each carrying random cash prizes or jackpots that combine into a final payout.

In addition, certain markets include a Bonus Buy option, allowing direct entry into the Lock & Spin feature for a cost set at 75 times the initial bet.

The overall structure combines multiple layered mechanics, with each feature designed to extend gameplay duration and introduce varied payout opportunities. With its trucking theme and evolving bonus system, the release adds another feature-heavy title to Greentube’s catalog.

Source:

"Rumble Riches™ – Haulin’ Gold™ is now available for our B2B partners!", greentube.com, March 30, 2026