On June 26 2024, Slingshot Studios released Gold Boom. The video slot takes us on a journey into a mine shaft as Doug Deep. 

In this review, you will learn about the game setup and bonus features. 

Game Setup 

When you open the slot, you will notice 5 reels and 3 rows. You can land winning combinations on 20 paylines on a default RTP of 96.14%.

The other RTPs are 94.04% and 92.12%. 

To get started, you need to place a minimum bet of €0.20 or a maximum bet of €40. This gives you a chance at achieving the maximum win of 5650x at a high volatility. 

You can land winning combinations with low pays, high pays and wilds. The lows are 9 to A card ranks while the highs are a line of 5 skulls with hard hats, barrels, picks, canaries and miner symbols. Wilds are a dynamite symbol. 

The reward for 5 matching lows is 1x to 2x while landing 5 matching highs is 5x to 10x. 5 matching wilds are worth 50x. 

Bonus features

Mine carts

There are 1 of 5 types of Mine Carts that may appear at random above the rightmost reel. When wilds land beneath the Mine cart, they activate the prize and more than one prize can be awarded per spin. 

After each spin, the Mine Carts move one spot on the reels toward the left  and disappear once they reach the leftmost reel without being activated. 

There are five types of Mine Cart awards:

• Extra scatter Mine Cart

• Wild multiplier Mine Cart

• Wild reel Mine Cart

• Walking wild reel Mine Cart 

• Collection prize Mine Cart 

Collection prize

When you collect all the letters for MINI, MINOR, MAJOR, or GRAND, you receive rewards of 15x, 50x, 250x, or 2,500x the bet respectively. During the base game, you can trigger major or grand at random where you can land their letters on a special set of reels only for that spin. 

During the base game and Collection Prize Free Spin, you can be awarded the Mini and Minor prizes. During the Collection Free Spins, you can be awarded the Major and Grand prizes. 

The letters collected for Mini and Major are stored per bet. 

Free spins and bonus charge

To activate the Free Spins round, you need to land 3 or more scatters. The Mine Carts are above all the reels during the round and there is a Mine Cart on the rightmost reel for each spin. 

The Wheel Spins award you with 1 to 4 Free Spins before the Free Spins round begins. 

There are four rewards during the Free Spins round: 

• 20 Collection Prizes

• 10 Walking Wild Reels Free Spins

• 10 Wild Reels Free Spins

• 10 Wild Multiplier Free Spins

During the round, you can use the upsizer feature to tinker with the options at a cost displayed on the screen. The multipliers only apply to line wins.

The Free Spins can be retriggered and you can buy an extra Free Spin once the feature ends. 

Feature buy

50x the bet will buy your way into the Free Spins round. 

Verdict 

Players who enjoy mining themes will especially enjoy the Free Spins round features such as the Wheel Spin and upsizer feature.