Coin Volcano
Coin Volcano is a high-volatility online slot from the provider 3 Oaks Gaming. The game features a 3×3 grid, an RTP of 96.5%, and a maximum win of up to x2551. It is available in both demo mode and for real money play.
3 Oaks Gaming designed the Coin Volcano slot with a 3×3 grid and 243 ways to win. It has a 96.5% RTP and a high volatility rating. The base game functions differently than standard slots: regular symbols do not award payouts during normal spins. Instead, the main objective is to land three bonus symbols on the middle row to trigger the main bonus rounds. Once activated, players can win four fixed jackpots, with the largest offering a payout of 2551x the bet.
Selecting a Platform for the Coin Volcano Game
To play the Coin Volcano game with real money stakes, look for licensed platforms that feature the 3 Oaks Gaming portfolio. A legitimate casino guarantees that the RNG (Random Number Generator) operates correctly and that the Bonus Buy options work according to the official specifications. Most regulated operators also provide a free-play version of Coin Volcano. Testing the game in this mode allows you to observe the hit frequency of the sticky coins and check the bonus mechanics without using actual funds.
Game Information
| Feature | Details |
| Developer | 3 Oaks Gaming |
| Theme | Coins, Volcano, Classic / Hold and Win |
| Release Date | October 12, 2023 |
| RTP | 96.5% |
| Volatility | High |
| Max Win | 2551x |
| Grid Layout | 3 × 3 |
| Paylines | 243 |
Game Rules
Coin Volcano focuses entirely on Bonus symbols and specialized round triggers. In the base game, Bonus symbols can land on any position but do not award payouts independently. A payout sequence requires activating either the Bonus Game or Ultra Bonus Game, which occurs when 3 Bonus symbols settle on the central horizontal row. The triggering bet level carries over directly into these special rounds.
Fixed Jackpots in Coin Volcano Slot
The Coin Volcano slot features four fixed prize tiers calculated directly from the active total bet:
- Grand Jackpot — 500x total bet
- Major Jackpot — 50x total bet
- Minor Jackpot — 20x total bet
- Mini Jackpot — 10x total bet
Autoplay and System Malfunctions
Players can automate spins via the Autoplay button. The game will continue spinning automatically until manually interrupted by clicking the Stop button, or if the current balance falls below the required bet size.
Regarding technical errors: any structural malfunction voids all payouts. If a game session gets interrupted unexpectedly, the system retains the round data for 120 days before final removal, keeping recorded player achievements intact where supported by the Coin Volcano casino platform.
Bonus Buy System in the Coin Volcano Game
The Coin Volcano game permits direct entry into its main features through fixed purchase options based on the baseline bet:
- Bonus Game: Access costs 30.00
- Ultra Bonus Game: Access costs 75.00
Purchased features initiate immediately, provided the player has a sufficient balance. The rounds use the exact bet level assigned during the purchase. Note that any Sticky Coin symbols present on the reels before buying a feature are excluded from the purchased round.
Paytable and Coin Symbols
All symbols in the Coin Volcano casino game are themed around coins.
| Symbol | Payout |
| Common Coin | 1× to 4× the bet |
| Sticky Coin | 5× to 9× the bet |
| Mini Jackpot | 10× the bet |
| Minor Jackpot | 20× the bet |
| Major Jackpot | 50× the bet |
| Mystery Symbol | Transforms into another symbol, except Sticky Coin |
| Mystery Jackpot Symbol | Can reveal Mini, Minor or Major Jackpot |
| Coin Collect Symbol | Collects all visible coins and jackpots on the screen |
Bonus Game
During the Bonus Game, all Bonus symbols remain on the reels until the round ends. At the start of the Bonus Game, the player receives 3 respins. Each new Bonus symbol that lands on the reels resets the respin counter back to 3. The Bonus Game continues until there are no respins left or until 9 Bonus symbols have been collected.
Mystery symbol
In Coin Volcano slot he Mystery symbol can transform into any other symbol except the Sticky Coin. The Mystery Jackpot symbol can transform only into one of the jackpot symbols: Mini, Minor, or Major. All Mystery and Mystery Jackpot symbols are revealed one by one at the end of the Bonus Game or Ultra Bonus Game.
Coin Collect
The Coin Collect symbol instantly collects the prizes shown on all Coin symbols. If any multipliers are present, they are applied to the values of the Coin and Jackpot symbols before collection. After collecting the prizes, the Coin Collect symbol remains on the reels until the end of the Bonus Game or Ultra Bonus Game.
Grand Jackpot in Coin Volcano
Collecting all 9 symbols of any type awards the Grand Jackpot, which is equal to 500x the total bet. The Grand Jackpot is added to the total winnings in the Bonus Game or Ultra Bonus Game.
Volcano multiplier feature
The Volcano Multipliers Feature can trigger randomly during the Bonus Game or Ultra Bonus Game. When the feature is activated, the volcano awards 1 to 9 lava multipliers to random reel positions. If several lava multipliers land on the same position, their values are combined, increasing the multiplier for that position. All multipliers are applied at the end of the Bonus Game or Ultra Bonus Game.
Ultra Bonus Game
The Ultra Bonus Game in Coin Volcano can trigger randomly during the main game. At the start of the Ultra Bonus Game, the Volcano Multipliers Feature is guaranteed to activate. During the Ultra Bonus Game, the chance of triggering the Volcano Multipliers Feature again is higher.
