Northern Lights released Bison Boom on July 10 2024. The slot theme is based on the North American wild landscapes. 

This review will help you learn about the game setup and bonus features.

Game setup 

Once you open the game, you find 5 reels and 3 rows. You can land winning combinations on 20-45 paylines on a default RTP of 96.15%. 

The other RTPs are 94.08% and 92.12%.

To get started, you must place a minimum bet of €0.20 or a maximum bet of €20. This gives you a shot at the maximum win of 11000x at medium volatility. 

On your way to the maximum win, you can land both low and high-paying symbols. The low pays are card ranks while the high pays are eagle, wolf, racoon, bear and bison. 

Landing 5 matching low pays rewards 0.10x to 1x while landing 5 matching highs rewards 0.50x to 8x. The bison is wild and replaces all regular paying symbols except the scatter. It also has a reward of 8x for 5 matching wilds. 

Bonus features 

Bison wild boom

During Bison Wild Boom, you collect mini dynamite tokens which accumulate in the Wild Crate. This appears only in the base game and can explode. 

When they randomly explode during a spin, up to 15 wild symbols appear on the grid enhancing your chances of winning combinations. 

Feature upgrade

To activate Feature Upgrade, you must land 2 scatters on reels 1 and 3 which will add a token to the Feature Upgrade Meter above the reels. The Meter has 4 sections which are filled by 10 tokens each. 

This means you need 40 tokens to fill up the Meter which unlocks all rows maximising your winning potential. Your progress on the Meter is carried on to the Bison Spins round.

Bison spins

Before Bison Spins, Upsizer options are available at a set price. 

You must land 3 scatters to unlock Bison Spins which reward you with 3 respins. On the special reels, you can only land Moons, Blanks and Feature modifier symbols. 

The Blank symbols spin independently. 

When you land a Moon or Feature modifier symbol, the respins are reset to 3 and lock the Moon symbols. 

There are two types of Moon symbols, Red and Blue. The Red Moon multiplies your bet by 7x while the Blue exceeds the Red multiplier value. Feature modifiers can turn a Red Moon into a Blue one making it more valuable. 

During the feature, you can land 7 Feature modifier symbols with different capabilities. They are:

• The Collector symbol

• The Adder symbol

• The Persistent symbol

• The Splitter symbol

• The Doubler symbol

• The Key symbol 

• The Bomb symbol 

Bison Spins end when there are no more respins or Moon symbols on all reel positions for 2000x the bet. 

Buy bonus

To cut to the chase, you must place 71.8x the bet to activate the Bison Spins round. During this feature, you can not activate Feature Upgrade.

Verdict 

Bison Spins is a great slot option for fans of nature themes. Besides thrilling bonus features, it adds a twist of seven different feature modifiers in the Bison Spins round.