Coin Volcano by 3 Oaks Gaming erupts onto the slot scene with a fiery 3x3 grid and a unique Hold and Win mechanic that sets it apart from traditional slots. Released in August 2023, this visually striking game ditches standard symbols in favor of high-value coins, mystery icons, and a suite of explosive bonus features. With no fixed paylines and a focus on bonus rounds, every spin promises unpredictability and the potential for big wins. Players can trigger two distinct bonus games, collect sticky coins, and chase four fixed jackpots, including a Grand Jackpot worth up to 500x the bet. Whether you’re a seasoned slot enthusiast or new to Hold and Win games, Coin Volcano delivers a dynamic and engaging experience with every spin.
| Attribute | Value |
|---|---|
| Slot Title | Coin Volcano |
| Release Date | August 2023 |
| Developer | 3 Oaks Gaming |
| Theme | Volcano, Coins |
| RTP | 95.66% - 95.67% |
| Volatility | Medium to Medium-High |
| Bonus Feature | Bonus Game, Ultra Bonus Game, Hold and Win, Sticky Coins, Mystery Symbols, Volcano Multipliers, Bonus Buy |
| Multipliers | Yes (Volcano Multipliers up to 9x) |
| Jackpots | 4 Fixed Jackpots (Mini, Minor, Major, Grand up to 500x bet) |
| Min. Max. Bet | 0.10 – 60 (currency may vary by casino) |
| Reels | 3 |
| Rows | 3 |
| Paylines | No fixed paylines, pays anywhere (Bonus Game triggers only) |
| Layout | 3x3 |
Coin Volcano by 3 Oaks is a slot that turns up the heat with its dynamic features and engaging bonus mechanics. Players can expect a fast-paced, Hold and Win experience with no traditional paylines—just a 3x3 grid packed with coins, mystery symbols, and the chance for big multipliers. The action centers around two bonus rounds, the Bonus Game and the Ultra Bonus Game, where sticky coins, coin collect features, and four fixed jackpots can lead to sizzling wins. With random multipliers, special symbols, and the option to buy into bonus rounds, Coin Volcano keeps every spin exciting and loaded with possibilities. If you’re looking for a slot where every feature can trigger an eruption of rewards, this game is ready to deliver.
The Sticky Coin is a standout feature in Coin Volcano, adding anticipation to every spin. This special symbol can appear at any time during the base game and always lands with a value between 5x and 9x your total bet. Once on the reels—typically on the middle row—it stays locked in place, waiting for the next bonus round to be triggered. The Sticky Coin doesn’t just boost your potential payout, it also increases your chances of unlocking the Bonus or Ultra Bonus Game, since its presence on the middle row is key to activating these rounds. If you change your bet size, any Sticky Coins on the reels will disappear, so it’s wise to keep your wager steady if you’re aiming to take advantage of this feature. The anticipation of seeing a Sticky Coin remain on the reels until the bonus triggers adds a layer of excitement, making each spin feel more meaningful as you chase those bigger rewards.
Mystery Symbols bring unpredictability and excitement to Coin Volcano. When these symbols land, they have the power to transform into any other symbol—except the Sticky Coin—at the end of a spin or bonus round. This transformation can result in a regular coin, a jackpot symbol, or even a Coin Collect symbol, keeping players guessing until the very last moment. The Mystery Jackpot Symbol is a special variant that can only reveal Mini, Minor, or Major Jackpot prizes, adding another layer of suspense during the bonus rounds. These symbols are particularly valuable because they can help fill the grid, increasing your chances of hitting the Grand Jackpot. The thrill of watching Mystery Symbols reveal their true identity, especially when a jackpot is on the line, makes every bonus round more engaging and unpredictable.
The Coin Collect symbol is a powerful booster during bonus games. When it lands, this symbol instantly gathers the value of all coins and jackpot symbols currently on the reels, including any multipliers applied to them. The total is then added to the Coin Collect symbol itself, which remains locked on the grid until the bonus round ends. This feature is particularly valuable when you have several high-value coins or jackpot symbols in play, as it can turn a good round into a great one with a single spin. The Coin Collect symbol adds a strategic element to the bonus rounds, encouraging players to hope for its appearance at just the right moment for maximum impact.
Volcano Multipliers are one of the most thrilling features in Coin Volcano, capable of erupting at random during both the Bonus Game and Ultra Bonus Game. When triggered, the volcano launches between one and nine multiplier symbols onto random reel positions. Each multiplier increases the value of the symbol it lands on by 1x, and if multiple multipliers hit the same spot, they combine for even bigger wins. These multipliers apply to all symbol types, including jackpot symbols, making them especially valuable during high-stakes bonus rounds. In the Ultra Bonus Game, Volcano Multipliers are guaranteed to trigger at the start and can retrigger multiple times, ramping up the potential for explosive payouts. The visual spectacle of the volcano erupting and the anticipation of where the multipliers will land make this feature a highlight for any player chasing big wins.
The Bonus Game is the core of Coin Volcano’s gameplay and is triggered when three symbols of any type land on the middle row. Once activated, players receive three respins, with all triggering symbols locking in place. Every time a new bonus symbol lands, it also locks and the respin counter resets to three, giving players more chances to fill the grid. The round continues until no new symbols appear for three spins or all nine positions are filled. During the Bonus Game, players can land regular coins, jackpot symbols, mystery symbols, Coin Collect symbols, and multipliers. Filling the entire grid awards the Grand Jackpot, which is worth 500x your bet. The Bonus Game is where most of the action—and the biggest wins—happen, making it the main attraction for fans of Hold and Win mechanics.
The Ultra Bonus Game is an enhanced version of the standard Bonus Game, offering even greater winning potential. It can be triggered randomly during the base game or purchased directly via the Bonus Buy feature. At the start of the Ultra Bonus Game, the Volcano Multipliers feature is guaranteed to activate, immediately boosting the value of symbols on the grid. Throughout the round, Volcano Multipliers can retrigger, adding even more multipliers and increasing the chances of massive payouts. The rules for respins and locking symbols are the same as the regular Bonus Game, but the increased frequency and power of multipliers make the Ultra Bonus Game especially lucrative. This round is designed for players who crave high volatility and the thrill of chasing the biggest possible rewards.
Coin Volcano offers four fixed jackpots: Mini (10x), Minor (20x), Major (50x), and Grand (500x your bet). The Mini, Minor, and Major jackpots can appear as symbols during both the Bonus Game and Ultra Bonus Game, and their values can be multiplied if a Volcano Multiplier lands on them. The Grand Jackpot is awarded when all nine positions on the grid are filled during a bonus round, and it cannot be multiplied. The chance to win one of these jackpots on any bonus round spin adds an extra layer of excitement and gives players clear targets to aim for. The fixed nature of the jackpots means you always know exactly what you’re playing for, making each bonus round a high-stakes, adrenaline-fueled chase.
For those who prefer instant action, Coin Volcano includes a Bonus Buy feature. This allows players to purchase direct entry into either the Bonus Game or the Ultra Bonus Game, bypassing the need to wait for the right combination of symbols. The standard Bonus Game can be bought for 30x your bet, while the Ultra Bonus Game costs 75x your bet. This feature is ideal for players who want to experience the slot’s most exciting moments without delay, but it comes with higher volatility—sometimes resulting in big wins, and other times in smaller returns. The Bonus Buy option adds flexibility and caters to a wide range of play styles, from cautious spinners to risk-taking thrill-seekers.
Coin Volcano is designed for both new and experienced slot players, offering straightforward gameplay packed with fiery features. Here’s a step-by-step guide to get started and maximize your experience:
1. Set Your Bet
Begin by choosing your bet size using the coin or bet adjustment buttons on the game interface.
Bets range from 0.10 up to 60 per spin, catering to both casual players and high rollers.
Adjust your bet according to your budget and playing style. Remember, changing your bet will remove any Sticky Coins currently on the reels.
2. Spin the Reels
Press the spin button (usually depicted as two arrows) to start the game.
You can also use the autospin feature for continuous play, letting the reels spin automatically while you watch the action unfold.
3. Watch for Special Symbols
Look out for Sticky Coins, regular coins, Mystery Symbols, Coin Collect symbols, and Jackpot symbols.
Sticky Coins can land randomly and remain on the reels until a bonus round is triggered, carrying values between 5x and 9x your bet.
Mystery Symbols and Mystery Jackpot Symbols add unpredictability, transforming into other symbols or jackpots at the end of a spin or bonus round.
4. Trigger Bonus Rounds
Land any three symbols on the middle row to activate the Bonus Game or Ultra Bonus Game.
In the Bonus Game, you receive three respins. Each new bonus symbol resets the respin count to three, and all symbols lock in place. The round ends when no new symbols land for three spins or the grid is full.
The Ultra Bonus Game can be triggered randomly or purchased, offering guaranteed Volcano Multipliers for even bigger wins.
5. Use the Coin Collect and Volcano Multiplier Features
During bonus rounds, the Coin Collect symbol instantly gathers all visible coin and jackpot values, including any multipliers, and locks on the grid until the round ends.
Volcano Multipliers may erupt at random, dropping multipliers onto symbols and boosting their values up to 9x. Multiple multipliers can combine for even greater rewards.
6. Chase the Jackpots
Fill the entire 3x3 grid during a bonus round to win the Grand Jackpot, worth 500x your bet.
Mini, Minor, and Major Jackpots can also land as symbols during bonus rounds, with their values potentially multiplied by Volcano Multipliers.
7. Try the Bonus Buy Feature
If you want instant access to the action, use the Bonus Buy option to purchase entry into the Bonus Game or Ultra Bonus Game for 30x or 75x your bet, respectively.
This feature is ideal for players seeking immediate high-volatility excitement.
8. Collect Your Winnings
At the end of each spin or bonus round, winnings are automatically credited to your balance.
Continue spinning, adjust your bets as desired, and enjoy the dynamic gameplay.
Coin Volcano’s intuitive controls, explosive features, and potential for big wins make it an appealing choice for anyone looking for a slot with high entertainment value and rewarding mechanics.
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