BGaming · high volatility · free demo

Bonanza Billion

Welcome to the richest mine in the world with Bonanza Billion, a high-volatility slot from the innovative provider BGaming. This game plunges you deep into a gold-filled canyon where every spin could trigger a cascade of wins and unlock monumental features.

Bonanza Billion facts

RTP
96%
Volatility
High
Max win
15,000×
Bet range
0.1 – 100
Game type
Slots
Provider
BGaming

RTP varies by casino. Studios release the same slot in more than one RTP build and each casino picks which one it runs, so check the RTP in this game's own info screen at the casino where you play.

Features Bonus buy
Categories Fruit

Facts from the SlotsLaunch games feed, last synced 6 Sep 2026. The rules inside the game take precedence.

Bonanza Billion paytable and rules

Recorded from Bonanza Billion's own information screens while the game ran in demo mode at a licensed casino, 7 September 2026. Symbol values appear exactly as the game prints them, which below means cash amounts at a 0.20 FUN spin. A casino can run a different build of a slot, so check the game's own info screen where you play.

Bonanza Billion symbol payouts, as cash at a 0.20 FUN spin
Symbol 12+10-118-9654
green gem 10.00 FUN 5.00 FUN 2.00 FUN
blue gem 5.00 FUN 2.00 FUN 0.50 FUN
star 3.00 FUN 1.00 FUN 0.40 FUN
red heart 2.40 FUN 0.40 FUN 0.30 FUN
watermelon 2.00 FUN 0.30 FUN 0.20 FUN
blue plum 1.60 FUN 0.24 FUN 0.16 FUN
lemon 1.00 FUN 0.20 FUN 0.10 FUN
orange 0.80 FUN 0.18 FUN 0.08 FUN
cherries 0.40 FUN 0.15 FUN 0.05 FUN
ScatterScatter 20.00 FUN 1.00 FUN 0.60 FUN
MultiplierMultiplier

How Bonanza Billion's special symbols work

Scatter
Scatter pays on any position in the main game. During the Free Spins round they only retrigger Free Spins. If a Scatter pays, and there is a winning combination in the same spin, a player receives a win both for the Scatter and for the winning combination.
Multiplier
Multiplier symbol is present on the reels only during the Free Spins Round. Whenever the symbol hits it takes a random multiplier value from 2x to 100x.

Bonanza Billion features

Symbols pay
Symbols pay anywhere on the screen. The total number of the same symbol on the screen at the end of a spin determines the value of the win.
Refilling
Refilling. Now the Refilling can give you many consecutive wins on every spin. Refilling means that after every spin, all combinations are paid and all winning symbols disappear. The remaining symbols fall to the bottom of the screen and the empty cells are filled with symbols coming from above. Refilling will continue until no more winning combinations appear as the result of a Refill. There's no limit to the number of possible Refills. All wins are added to the player's balance after all of the Refills resulting from a base spin have been played.
Free Spins
Free Spins feature is awarded when 4 or more Scatter symbols hit anywhere on the screen or a Free Spins round has been purchased. If 4 Scatter symbols drop on the reels you get 10 Free Spins, 5 Scatters - 20 Free Spins, 6 Scatters - 30 Free Spins. Whenever 3 or more Scatter symbols hit during the Free Spins Round, 5 additional free spins are awarded.
Multiplier symbol
Multiplier symbol appears on the reels only during the Free Spins Round and it stays on the screen until the end of the refilling sequence. When the Refill sequence ends, the value of all multiplier symbols on the screen are added together and the total win of the sequence is multiplied by the final value. Whenever the symbol hits it takes a random multiplier value from ×2 to ×100.
Scatter symbol
Scatter symbol appears on all reels. Scatter pays on any position in the main game. During the Free Spins Round, they only re-trigger Free Spins. If a Scatter pays, and there is a winning combination in the same spin, a player receives a win both for the Scatter and for the winning combination.
Buy Bonus
Buy Bonus. A player can buy Free spins during the game. A player can buy a bonus at the price pictured above the button. If the player increases the bet, the buy bonus price will be automatically increased. Spins start after buying the bonus. The next spin triggers a bonus game. During the bonus round, the button is disabled.
Chance x2 feature
Chance ×2 feature. There is a possibility to buy the Chance ×2 feature in the game. It increases the bet and gives the player more chances to play bonus games. The Chance ×2 feature is disabled if the Buy Bonus feature is active.
Bonanza Billion rules, as the game states them

Winnings are formed depending on the number of symbols. Choose the bet size using the buttons in the Total bet field. Higher bets will increase a total win. The bet value chosen is displayed in the corresponding field. To start the reels spinning, click the Spin button.

Payouts are made according to the number of symbols, the win amount is displayed in the Total Win field.

Winnings are formed depending on the number of symbols.

Payouts are made according to the paytable.

Note that payouts are made according to the number of symbols. To learn the game payouts, click the Information (I) button.

In case of multiple winning combinations, the sum of the win is added.

In case a certain number of Scatter (Bonus) symbols pay, and winning combinations and the paying number of Scatter (Bonus) symbols drop in one spin, a player receives the win amount both for Scatters and for all the winning combinations.

The maximum winning amount is ×15000 of the bet.

The overall theoretical Return to Player (RTP) is 95.97%. RTP in the Buy Bonus feature is 96.03%.RTP in the Chance ×2 feature is 96%.

The game is based on a certified random number generator. For more information, visit our BGaming site.

Malfunction voids all plays and pays! All unfinished rounds will be terminated every 24 hours. If the game requires “Collect” - “Collect” will take place and the win from the round will be added to the player balance. If the game requires action from a player, the result is counted assuming that the player has chosen the action with no risk without raising the initial bet. This is the game rule version 1.1, December 16, 2021. Game Version 1.0.0.

Free Demo

Bonanza Billion

by BGaming

18+ | T&Cs Apply | Gamble Responsibly

Last updated: Sep 2, 2026
Provider: BGaming RTP: 96% Volatility: High
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Slot Review

Bonanza Billion Overview

Bonanza Billion is a high volatility slot by BGaming with an RTP of 96%. Play Bonanza Billion for free on Slottomat, compare the core stats quickly, and browse trusted slot offers available in your market.


Bonanza Billion: A High-Stakes Mining Adventure from BGaming


Game Overview & Theme


Bonanza Billion transports you to a colourful, cartoon-style mining canyon bathed in a golden sunset. The reels are set against a rocky cliff face, with mining carts, dynamite, and glittering gems setting the scene. The soundtrack is an upbeat, adventurous tune that builds excitement with every cascade. Unlike traditional slots, Bonanza Billion uses a 6x5 grid layout, ditching standard paylines for a "Ways to Win" system where matching symbols in adjacent reels from the leftmost side create a win. This layout is a hallmark of many popular cluster-pay and cascading games, offering a fresh and dynamic spin experience. The visual and audio design is polished and engaging, perfectly capturing the thrill of a big gold rush.

How to Play Bonanza Billion


The betting range is exceptionally wide, accommodating all players with a minimum bet of $0.01 and a maximum bet of $50 per spin. To play:


  1. Set your desired bet using the coin and total bet controls.

  2. Hit the spin button to set the reels in motion.

  3. Wins are formed by landing 8 or more matching symbols anywhere in adjacent positions, starting from the left reel.

  4. Winning symbols disappear, triggering the Avalanche (or cascade) feature where new symbols fall into the empty spaces, potentially creating consecutive wins from a single spin.

  5. The avalanche multiplier increases by 1x with each consecutive cascade during the base game and the bonus round, offering massively boosted payouts.


The game’s high 96% RTP is player-friendly, but the very high volatility means wins can be less frequent but potentially significant when they arrive. Patience and a suitable balance strategy are key for this mining adventure.

Symbols and Payouts


The symbols in Bonanza Billion are split into low-paying and high-paying categories. The low-paying symbols are classic gemstones in various shapes and colors: purple, green, blue, and red. The high-paying symbols are the mining tools and characters: a lantern, a pickaxe, a miner, and the mine owner as the highest-paying regular symbol. Landing a full screen of the mine owner symbols can lead to a colossal payout. The Wild symbol, represented by a glowing gold nugget with "WILD" inscribed, substitutes for all regular symbols to help form winning combinations. The most important symbol, however, is the Bonus Scatter, depicted as a dynamic gold rush sign.

Bonus Features and Special Rounds


Bonanza Billion is packed with features that can turn any spin into a gold rush.


The Avalanche Multiplier


This is the engine of the game. Every winning combination triggers an avalanche. The multiplier, displayed on the left side of the grid, increases by 1x with each consecutive cascade. Crucially, this multiplier does not reset between spins during the base game—it only resets when a spin results in no wins. This allows for the potential to build a significant multiplier over several spins, leading to huge payouts when a large cluster of symbols finally hits.

Free Spins Bonus Round


Landing 4 or more Bonus Scatter symbols anywhere on the grid triggers the Free Spins feature. You are awarded an initial 10 free spins. The key here is that the avalanche multiplier no longer resets between spins during the entire free spins round. It only resets to 1x if you enter a new free spins bonus from the base game. This is where the game's billion-coin potential comes alive. The multiplier can climb relentlessly across your free spins, and landing additional Scatter symbols (3 or more) awards +5 extra free spins, extending the round and the multiplier's growth potential indefinitely.

Bonus Buy Feature (Where Available)


For players in jurisdictions where the feature is permitted, Bonanza Billion offers a Bonus Buy option. You can instantly purchase entry into the Free Spins round for 100x your current bet. This is a high-risk, high-reward shortcut perfect for those wanting to dive straight into the action, but it's essential to remember the game's very high volatility.

Pros and Cons of Bonanza Billion


Pros:


  • High Win Potential: The non-resetting multiplier in free spins can lead to astronomical wins.

  • Engaging Gameplay: The avalanche mechanic and ever-increasing multiplier create constant anticipation.

  • Broad Betting Range: Accessible to both casual players and high rollers.

  • Bonus Buy Option: Provides immediate access to the main event for those who prefer it.


Cons:

  • Very High Volatility: Can lead to long dry spells without significant wins, requiring patience.

  • No Progressive Jackpot: Despite the name "Billion," the top prize is a fixed maximum win.

  • Feature Trigger Can Be Elusive: Getting the 4+ scatters needed for free spins can be challenging during base game play.

How Bonanza Billion Compares to Other BGaming Slots


BGaming is known for its diverse and feature-rich portfolio. If you enjoy the cascading mechanics and high volatility of Bonanza Billion, you might also love Panda Fortune Rush, which offers a similar thrill with an Asian theme and a fortune frog bonus. For something with a sweeter twist, Candy Monsta provides a cluster-pay experience with a sticky wilds respin feature. Fans of retro fun should check out Disco Party, while those who enjoy hold & win mechanics might prefer Golden Paw Hold & Win. For a more traditional fruit machine experience with a modern twist, Joker Queen is an excellent choice. You can explore even more titles by visiting our comprehensive Slots by Theme page.

Tips for Playing the Bonanza Billion Demo


Playing the free demo of Bonanza Billion at Slottomat is the perfect way to understand its mechanics. Use this opportunity to:


  • Learn how the avalanche and multiplier system works without financial pressure.

  • Experience the game's high volatility firsthand to gauge its pace and rhythm.

  • Test different bet sizes to see how they affect your play session.

  • Trigger the free spins round to see how the non-resetting multiplier can build.

  • Determine if this adventurous mining theme and gameplay style are right for you anywhere.


Remember, the goal of a demo is pure entertainment and education.

Final Verdict


Bonanza Billion is a standout, high-octane slot from BGaming that successfully captures the excitement of a modern cascading grid game. Its most compelling feature is the persistent multiplier during free spins, which holds the key to its massive payout potential. While the very high volatility means it’s not a game for those seeking frequent, small wins, the patience it demands can be richly rewarded. The excellent production values, smooth gameplay, and innovative mechanics make it a must-try for fans of high-stakes slots. We recommend giving the Bonanza Billion demo a spin right here to experience its gold rush potential for yourself.

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FAQ

Common Questions About Bonanza Billion

Direct answers to the questions players usually ask before trying a slot.

Bonanza Billion has a theoretical RTP of 96% and is classified as a very high volatility slot. This means wins can be less frequent but potentially larger.

You can explore every feature at your own pace.

The bet range in Bonanza Billion is from a minimum of 0.01 to a maximum of 50 per spin. This makes it suitable for players with different budgets.
Bonanza Billion was developed by the provider BGaming. They are known for creating a wide variety of popular online casino games.
Yes, the Bonanza Billion slot is fully optimized for mobile play. You can enjoy it on smartphones and tablets running iOS or Android.

You win in Bonanza Billion by landing clusters of 8 or more matching symbols on adjacent reels, starting from the leftmost side. There are no traditional paylines. Winning symbols then vanish, triggering an Avalanche (cascade) where new symbols drop down. Each consecutive cascade increases a win multiplier, which can lead to significantly larger payouts, especially during the Free Spins bonus round.

The Free Spins bonus round is triggered by landing 4 or more Bonus Scatter symbols (the gold rush sign) anywhere on the grid in a single spin. You are awarded 10 initial free spins. The most important aspect of this round is that the avalanche multiplier does not reset between spins, allowing it to grow to enormous levels throughout the feature.

Yes, in many jurisdictions where the feature is allowed, Bonanza Billion offers a "Bonus Buy" option. For a cost of 100x your current bet, you can instantly trigger the Free Spins bonus round. This feature is subject to regional availability and should be used with caution due to the game's high volatility.

Yes. If you enjoy the cascading reel and multiplier mechanics of Bonanza Billion, you might like other popular grid slots. The Reactoonz series offers a similar cluster-pay experience with evolving wilds and charge-up features. For more games with special expanding symbols, you can browse our dedicated list of Expanding Wilds Slots. As mentioned, BGaming's own Panda Fortune Rush also provides a comparable high-volatility cascade experience.