Welcome Offer
18+ new players only. First deposit offer: Deposit & wager £20 on Big Bass Splash for 20 spins. Wagering must be completed within 7 days of deposit. Spins awarded on Big Bass Splash. No wagering on winnings. www.begambleaware.org Full T&Cs apply.

Big Bonus Slot

Big Bonus

Play Big Bonus slot online at King Casino

*Any values mentioned are subject to change.

What Is Big Bonus?

Big Bonus is an online slot game from Inspired, designed with 6 reels and 50 paylines. The game accommodates different styles of play, allowing bets from a minimum of £0.20 up to a maximum of £5. All outcomes are determined by matching symbols according to specific rules and win lines.

How Do Wins Occur in Big Bonus?

Wins in Big Bonus are achieved by lining up 3, 4, 5, or 6 matching symbols on adjacent reels, starting from the leftmost reel and continuing along a valid win line. Each spin can produce wins on any or all of the 50 paylines. While it is possible to win on multiple lines per spin, only the highest-value win on each line will be paid. Winning amounts are tallied from left to right, and combined if wins occur on separate lines.

What Special Features Does Big Bonus Offer?

How Do Wild Symbols Work?

The Wild symbol can substitute for any other symbol except the Bonus Scatter, helping to complete winning combinations. In the base game, Wilds can appear on all reels. During the Free Spins bonus, Wild symbols are found on reels 2, 3, 4, 5, and 6. A distinctive feature during Free Spins is that any Wild symbol landing in view will remain locked in position for the duration of the bonus round.

How Are Free Spins Triggered?

The Free Spins bonus activates when 3 or more Bonus Scatter symbols land on the reels. Once triggered, each Scatter turns into a pick with an associated multiplier that could be 20x, 25x, 30x, 50x, or 100x. The Free Spins feature continues until a win equal to or greater than the selected multiplier value is achieved. Throughout the Free Spins, every Wild symbol that appears will lock in place until the end of the bonus round.

What Is the Spin Chance Feature?

The Spin Chance feature comes into play automatically if your credit drops below the current bet amount but remains above zero. This feature gives an opportunity to wager for one additional spin at your current stake. The outcome depends on a pointer—if it lands on green, an extra spin is awarded; if it lands on red, play comes to an end.

What Are the Main Game Controls?

  • Spin: Press this to start a round at the selected stake.
  • Stake: Adjust the amount you wish to bet per spin.
  • Settings: Access the game’s configuration options.
  • Game History: Review previous game results.
  • Sound: Turn audio on or off as desired.

Where Can I Find General Information?

  • If real play is interrupted, the game will resume from where it stopped as part of its recovery protocol.
  • The minimum allowed stake is £0.20.
  • The maximum allowed stake is £5.
  • The Return to Player (RTP) value can be viewed within the game interface.

Big Bonus Demo Mode & Free Play Explained

A common way for players to explore a slot is by searching for a Big Bonus demo or Big Bonus free play option. Since this website does not offer demo or free play versions, we’ve created this page to give you the same type of insight in a different way.

Here, you’ll find a clear outline of how the game is structured, including its main features, bonus rounds, and the role of special symbols.

This overview provides the knowledge you could gain from trying a Big Bonus demo version, making it easier to understand the experience in advance.


*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time. Game features mentioned may not be available in some jurisdictions.