Primal Buffalo PowerGrid: upcoming slot by Booming Games
Booming Games brings its iconic buffalo back with an electrifying PowerGrid twist, building the action around two independent Coin grids that can grow at the same time. The six-reel, 10,000-ways setup combines persistent Coin collection with the Ultra Prize Reel and Free Spins, allowing both sides of the layout to develop separately and even complete on the same spin.
Primal Buffalo PowerGrid Game Details
| Category | Details |
| Developer | Booming Games |
| Release Date | October 15, 2026 |
| Reel Heights | 4x5x5x5x5x4 |
| Pay Type | Ways |
| Ways | 10,000 |
| RTP | 95.6% |
| Volatility | Low |
| Free Spins Frequency | 1 in 214 spins |
| PowerGrid Frequency | 1 in 87 spins |
| Minimum Bet | €0.20 |
| Maximum Bet | €200.00 |
| Max Win | 2,150x |
| Max Exposure | €430,000 |
| Bonus Buy | 100x |
| Key Features | Twin PowerGrids, Ultra Prize Reel, Free Spins |
Twin PowerGrids Build on Both Sides of the Reels
Primal Buffalo PowerGrid divides the centre of the layout into two independent PowerGrids. Reels 2 and 3 form the left grid, while reels 4 and 5 form the right, giving each side its own Coin-building sequence.
Coins can appear inside either PowerGrid with prize values or a special Prize Reel symbol. Whenever a new Coin lands in an empty position, the Coins already inside that PowerGrid remain locked for another three spins. If no new Coin arrives within those spins, the Coins in that grid are removed.
Filling a PowerGrid with Coins completes it and awards its accumulated rewards. Because the two grids operate independently, both can continue developing at once and can even complete on the same spin.
Ultra Prize Reel Adds Another Layer to Each Grid
A Prize Reel symbol inside a PowerGrid activates the Ultra Prize Reel for the corresponding side. The left PowerGrid uses reel 1 for this feature, while the right PowerGrid uses reel 6.
The Ultra Prize Reel can produce Cash Prizes, Multipliers, Prize Pots or a Collect feature, giving the outer reels a direct role in the Coin sequences happening inside the two grids. Since either PowerGrid can activate its own Prize Reel, the feature can become part of either side’s progression.
Free Spins Let the PowerGrids Grow for Longer
Free Spins extend the PowerGrid mechanic by making landed Coins persistent throughout the feature. Instead of disappearing between individual spins, they remain in position, giving each side more opportunities to fill its grid and increasing the frequency of Ultra Prize Reel activations.
This makes the bonus round a more sustained version of the base-game collection mechanic, with both PowerGrids continuing to build as the spins progress.
A Bonus Buy at 100x the bet is also available, providing an alternative route into the game's bonus content.
Buffalo Country Charged with a New Kind of Hunt
Primal Buffalo PowerGrid brings Booming Games’ buffalo back into familiar open-country territory, but the twin-grid structure gives the hunt a different rhythm. Instead of waiting on a single collection area, two PowerGrids can grow side by side while the outer reels feed in Ultra Prize Reel rewards, creating a steady sense that either half of the screen could spark into action next.
With Coins able to persist through Free Spins and both grids capable of completing together, the game turns its 10,000-way layout into a broad, constantly developing chase with a maximum win of 2,150x the bet.