Bonanza Billion Merge Up+

The top prize is capped at 15,000x your stake. On a $1 spin that is $15,000; on $0.20 it is $3,000. When the cap is reached the round usually ends immediately.

Because wins don't depend on lines, every symbol in view can count towards a pay. The paytable lists how many matching symbols each tier needs.

Multipliers are applied to wins as they land; in many games several multipliers add together or multiply each other, which is where the largest wins come from.

Because winning symbols tumble away and are replaced, one paid spin can produce a chain of wins. All of them count towards that spin's total.

RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a very high volatility game.

The published hit frequency is 38.61%, meaning roughly one spin in 2.6 returns something — though many of those wins are smaller than the stake.

Free spins

A bonus round of spins played at no cost to your balance, usually triggered by landing three or more scatter symbols. Wins during the round are added to your balance, and many games let you retrigger extra spins.

Multipliers

Multipliers increase a win by a set factor, such as 2x or 10x. They can be attached to symbols, applied to a whole spin, or grow during a feature, and are a main driver of the biggest wins.

Tumbling reels

After a win, the winning symbols are removed and new ones fall into their place. This can create several consecutive wins from a single paid spin. Also called cascades or avalanches.

Bonus buy

Lets you pay a fixed multiple of your stake to enter the bonus feature straight away instead of waiting for it to trigger. It raises variance considerably and is not available in every country (it is banned in the UK).

Ante bet

An optional extra charge on each spin, typically +25%, that increases the chance of triggering the bonus feature.

• Treat bonus buys as high-risk. Buying the feature concentrates your budget into a few large-variance rounds. Many results return less than the price paid. Read our bonus buy guide first.
• Understand the ante bet. It costs more per spin to trigger features more often; it does not change the game into a better bet.
• Bonus wagering: at 97.04% RTP, clearing $1,000 of wagering costs about $29.60 on average. Check the bonus terms, as some casinos exclude specific games. Run your numbers in the wagering calculator.
• Set limits before you spin. Decide your loss limit and session time in advance and stop when you reach either. No pattern or betting system changes the outcome of a spin.

More on this in slot RTP and volatility explained and bankroll management.

For very high volatility we suggest a budget of at least 400 spins. This is what that means for Bonanza Billion Merge Up+.

Averages only: a short session can end far above or below them. Set a loss limit before you play.

Slots with the same mechanic (scatter pays) and volatility (very high) as Bonanza Billion Merge Up+, with a higher published RTP. Casinos can still run lower versions of any of them.

Slime Party98% RTP · +0.96 ptsFruity Halloween98% RTP · +0.96 ptsGemza97.17% RTP · +0.13 ptsGemza X-mas97.17% RTP · +0.13 pts