About this app
How to play Big Gains
The design is organized around color-coded Crystal Scatters, each tied to a distinct feature path. Every color is paired with a matching skull display and feature path: green for Upgrade, blue for Expand and red for Multiplier, and each feature awards seven spins as standard.
Each path alters a different part of the math model. Upgrade Free Spins turns Bison symbols into Thunder Bison that pay twice the standard value, while Expand Free Spins opens the grid to five reels by six rows and 7,776 payways. The third path introduces multiplier wilds to the middle reels.
The strategic detail is what happens when features overlap. When two feature types activate together, Super Charged Free Spins combines both sets of mechanics, and when all three activate, Mega Stampede Free Spins brings the six-row grid, Thunder Bison and Multiplier Wilds into the same seven spins.
What is Big Gains?
The news value here is less about the individual game than about what it signals. REEVO is continuing to lean on one of the most heavily worked themes in online slots. The studio is packaging a familiar setting alongside a mix of mechanics rather than a single standout engine.
Thunder Walker has a 5×5 reel layout with 50 paylines and a range of themed features. With a medium volatility profile, a reported RTP of 95.72% and a maximum win of 2,358x the bet, the game sits toward the more measured end of the market. This is not one of the high-ceiling, high-variance releases that dominate headlines.
That positioning matters. It points to a title built for broad operator placement and steady session play rather than a chase-the-max spectacle, which fits how volume-driven studios tend to structure their mid-tier output.
About Big Gains
In recent weeks, German authorities conducted a crackdown on an alleged illegal online gambling operation suspected of facilitating wagers totalling approximately €5.86 billion over a 30-month period.
The DSWV trade body, representing licensed sports-betting operators, broadly welcomed the enforcement action as a necessary response to the illegal market’s growth and associated risks.
“This successful investigation clearly demonstrates the scale that the illegal gambling market has now reached,” said Mathias Dahms, president of the DSWV.
