Thinking about giving Big Bonus a spin? We tested it thoroughly so you know what to expect. This is a Inspired Gaming slot game, sitting firmly in the a very high-variance maths model bracket and paying back 95.61% RTP. Top wins are capped at 250,000x your stake, a genuinely massive ceiling for the patient. Visually it's built with crisp artwork and atmosphere, with the action running on a straightforward 6 reels layout. Originally released in 2020, it has aged well. So does it deliver? Let's get into it.
Written by Alex Crawford · Last updated: March 2026
At its core, Big Bonus is a game produced by Inspired Gaming, given an engaging visual treatment and powered by a straightforward 6 reels layout. The result is a very high volatility profile paired with a published RTP of 95.61%.
The mechanics are what make Big Bonus interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. With very high variance, this one is aimed at players who can ride out the swings for the top wins. Overall it's a straightforward game that knows what it is.
At 95.61%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.
Very high volatility delivers the most extreme payout profile — long dry spells punctuated by potentially massive wins. Only recommended for experienced players with substantial bankrolls and high risk tolerance.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Big Bonus features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
2.9 / 5 — Average
Big Bonus by Inspired Gaming provides a straightforward slot experience. While it may not break new ground, it offers very high volatility gameplay that will appeal to certain player preferences.