Bonanza Billion
Bonanza Billion is a BGaming fruit slot built on a 6×5 grid where symbols pay anywhere. There are no paylines and no wild: any 8 or more matching symbols on screen form a win, winning symbols are removed and the grid refills from above until no new win appears. In free spins, multiplier symbols worth x2 to x100 land on the grid and are added together at the end of each refill sequence.
The demo build checked for this review lists a 98.21% RTP, with 97.98% for the Buy Bonus and 98.08% for Chance x2, and a maximum win of 15,000x the bet. BGaming’s own catalogue page shows 95.97%, which indicates that more than one RTP configuration exists. Below we cover the paytable, the scatter rules, how multipliers combine, both buy options and what the Bonanza Billion demo can and cannot tell you.
Where to Play Bonanza Billion
Bonanza Billion is available at casinos that carry the BGaming catalogue. The casinos below are reviewed on BetsAuthority and accept Australian players. Because two RTP figures are published for this game, open the rules inside the casino and read the Return to Player line before you play. Buy Bonus may be disabled in some jurisdictions.
Quick Facts About Bonanza Billion
| Parameter | Details |
|---|---|
| Slot | Bonanza Billion |
| Provider | BGaming |
| Release | December 2021 |
| Layout | 6 reels / 5 rows |
| Pay system | Pay anywhere, 8+ matching symbols, with refills |
| RTP | 98.21% in demo rules (BGaming page lists 95.97%) |
| Volatility | Listed by BGaming as “low-high” |
| Maximum win | 15,000x the bet |
| Free spins | 10 / 20 / 30 spins for 4 / 5 / 6 scatters; +5 for 3+ in the round |
| Multipliers | x2 to x100, free spins only, added together |
| Bonus buy | Buy Bonus 100x; Chance x2 +25% per spin |
| Demo bet range | 0.20 to 16 per spin |
How Bonanza Billion Works
After each spin the game counts identical symbols anywhere on the 30 positions. Eight or nine, ten or eleven, and twelve or more matching symbols pay at three increasing tiers. All wins on a spin are paid, the winning symbols disappear, the rest fall down and new symbols fill the gaps. There is no limit on the number of refills, and the total is credited once the sequence ends.
BGaming’s figures put the hit rate at about one win every 2.6 spins. Many of those wins are small fruit clusters that pay less than the stake.
Two details matter when reading results. First, each symbol type is counted separately, so 8 lemons and 8 plums on the same screen are two wins paid at the same time. Second, winning symbols are removed before the refill, so each refill is counted fresh from what is left on screen plus the new symbols; a paid cluster cannot grow into a higher tier on the next step. Scatter wins in the base game are added to cluster wins from the same spin.
Paytable
The four gem-style symbols pay the most. Converted from the demo paytable at a 0.20 bet, 12 or more green gems pay 50x the bet, blue gems 25x, stars 15x and red hearts 12x. For 10 to 11 symbols the same four pay 25x, 10x, 5x and 2x.
The fruit symbols are lower: 12 or more watermelons pay 10x, plums 8x, lemons 5x, oranges 4x and cherries 2x. At the 8 to 9 tier the fruits pay between 0.25x (cherries) and 1x (watermelons).
Scatters and Free Spins
The rainbow clover is the scatter and can land on all reels. In the base game it pays in any position: 4 scatters pay 3x the bet, 5 pay 5x and 6 pay 100x. Scatters also start free spins: 4 scatters award 10 free spins, 5 award 20 and 6 award 30. During the round, scatters no longer pay; instead 3 or more add 5 extra free spins.
BGaming lists the average free spins frequency at roughly one trigger in 395 spins. That is a long gap, which is the main reason the game can feel quiet between bonus rounds even though base game hits are frequent.
Multipliers in Free Spins
Multiplier symbols only appear during free spins. Each one takes a random value from x2 to x100 and stays on the grid until the refill sequence ends. At that point all multipliers on screen are added together and the total is applied to the win of the whole sequence. The screenshot below shows x2, x8 and x12 combining into x22 on a 0.35 win.
Multipliers do not carry over between spins and have no effect on a sequence without a win. The round’s final result therefore depends on multipliers landing in the same sequence as a decent cluster win. Because a multiplier stays on the grid through every refill of its sequence, a long refill chain gives more chances for further multipliers to drop in and join the sum before it is applied. The round in our demo test paid 65x the bet in total, with most of that coming from a single x22 sequence.
Buy Bonus and Chance x2
Buy Bonus costs 100x the current bet (20 at a 0.20 stake) and the next spin triggers the free spins round. Chance x2 adds 25% to each spin (0.05 at 0.20, 4.00 at 16) to improve the odds of landing scatters naturally. The two features cannot be active together.
RTP Versions and Volatility
The rules in BGaming’s demo state an overall RTP of 98.21%, 97.98% for Buy Bonus and 98.08% for Chance x2. BGaming’s game page lists 95.97%. The gameplay is identical across versions, so the only reliable check is the RTP line in the rules of the game you are actually playing. Over thousands of spins, a gap of more than two percentage points has a clear effect on expected losses.
BGaming labels the volatility as “low-high”. In practice, frequent small cluster wins sit alongside a rare bonus with uncapped multiplier sums, so session results vary widely.
Worked Example: Multiplier Sequence
At a A$1 bet in free spins, a spin lands 10 blue gems for 10x (A$10). The refill adds 8 cherries for 0.25x (A$0.25), then the sequence ends. Two multipliers landed during the sequence, x5 and x20. Their sum, x25, is applied to the A$10.25 sequence total, giving A$256.25. If no multiplier had landed, the same sequence would have paid A$10.25.
Bankroll Tips for Bonanza Billion
- With free spins around 1 in 395 spins on average, a budget of 300 spins may not reach a single bonus.
- Buy Bonus costs 100x per attempt; at A$1 that is A$100 for one round of 10 spins.
- Chance x2 raises every spin by 25% and slightly lowers the stated RTP (98.08% vs 98.21%).
- Confirm the RTP in the casino’s rules; lower configurations are published for this game.
- Set loss and time limits before starting, and use the casino’s deposit limits.
Pros and Cons of Bonanza Billion
| Pros | Cons |
|---|---|
| 98.21% RTP in the demo configuration | Lower 95.97% figure also published |
| Multipliers x2 to x100 added together | Multipliers only in free spins |
| Up to 30 free spins on a 6-scatter trigger | Free spins around 1 in 395 spins |
| 15,000x maximum win | No wild symbol |
| Unlimited refills on every spin | Buy Bonus is 100x per attempt |
Demo Play vs Real Money
The demo on this page is BGaming’s official fun-money version, with bets from 0.20 to 16. It is useful for seeing how refills chain, how often multipliers land and how a 100x bonus buy compares with its cost over several attempts. Note that the RTP shown in the demo may differ from the version at a given casino.
For real-money play, use a casino that shows the RTP in the game info, pays verified withdrawals promptly and offers deposit limits, loss limits and time-outs. Our casino reviews compare these points.
Frequently Asked Questions
The demo build’s rules list 98.21% for regular play, 97.98% for Buy Bonus and 98.08% for Chance x2. BGaming’s game page lists 95.97%, so casinos may run a different configuration. Check the rules inside your casino’s version.
No. Wins come from 8 or more matching symbols anywhere on the grid, plus refills. There is no wild.
Four scatters award 10 free spins, five award 20 and six award 30. During the round, 3 or more scatters add 5 more spins.
Multiplier symbols appear only in free spins and take a value from x2 to x100. When the refill sequence ends, all multipliers on screen are added together and applied to the sequence win.
The rules cap wins at 15,000x the bet.
Buy Bonus costs 100x the bet. Chance x2 adds 25% to each spin to improve the chance of triggering free spins.
Responsible Gaming Note
Bonanza Billion is a game of chance and every outcome is set by a certified random number generator. Only play if you are 18 or older, fix a budget and a time limit in advance and stop when you reach them. Bonus buys can consume a balance quickly. Free, confidential help is available 24/7 from Gambling Help Online on 1800 858 858.
Final Verdict
Bonanza Billion uses a familiar pay-anywhere and refill format with additive x2 to x100 multipliers in free spins and a 15,000x cap. The demo configuration’s 98.21% RTP is high, but a 95.97% figure is also published, so the version at your casino matters. Free spins are infrequent at around 1 in 395 spins. Test the demo, confirm the RTP in the casino’s rules and size stakes for long gaps between bonuses.
