Elysium Studios has launched Buffalo Thunderstorm, a new cluster-pays slot that takes players across the Great Plains with an expanding reel grid, growing Buffalo Wilds and a Free Spins feature packed with modifiers.
The game starts on a 5×5 grid and can expand to 8×5 as consecutive cluster wins land during a single spin. At its maximum size, the slot can deliver wins of up to 3,710x the bet.
Consecutive Wins Expand the Grid
Buffalo Thunderstorm builds its main mechanic around progression. The first, second and third cluster wins in a single spin each add another row to the reel grid, taking it from its initial 5×5 layout to a maximum of 8×5.
Once the grid is fully expanded, a Symbol Swap feature can randomly activate, adding another way to create winning combinations.
Two totem poles positioned beside the reels also play an important role. They can transform all junior symbols on the grid into matching senior symbols, potentially creating new clusters and extending winning sequences.
Buffalo Wilds Can Grow
The buffalo theme is also incorporated into the game’s Wild mechanic.
When a Buffalo Wild contributes to consecutive wins, it can expand to as large as 3×3 tiles. The larger Wild can then help complete further clusters as the sequence continues.
This expanding Wild mechanic works alongside the growing reel grid, giving consecutive wins a progressively larger playing field.
Free Spins Start on the Full Grid
Landing three Scatter symbols anywhere on the reels triggers the Free Spins feature, awarding 10 spins on the fully expanded 8×5 grid.
Each spin receives a randomly selected modifier. These can include guaranteed Symbol Swaps, 2×2 or 3×3 Buffalo Wilds, and multipliers reaching up to 25x.
Players can also retrigger the feature by landing three additional Scatters, which awards another 10 Free Spins.
For players who want immediate access to the bonus, Buffalo Thunderstorm includes a Bonus Button, while Bet Boost increases the stake slightly in exchange for a 30% higher chance of triggering Free Spins during the base game.
With its expanding grid, upgrade mechanics and growing Buffalo Wilds, Buffalo Thunderstorm adds a progression-focused structure to Elysium Studios’ slot portfolio, with the Free Spins round providing another layer of feature combinations.