Coin Volcano is a Hold and Win slot developed by 3 Oaks Gaming and released in August 2023. It uses a compact 3×3 grid with no traditional paylines. The base game is built around collecting special symbols and triggering the Bonus Game or Ultra Bonus Game.
The game has a 95.66% RTP, medium volatility and a maximum win of x2,551 the total bet. Coin Volcano also includes four fixed jackpots. Mini pays x10, Minor pays x20, Major pays x50 and Grand pays x500.
Coin Volcano Overview and Main Features
| Characteristic | Detail |
|---|---|
| Provider | 3 Oaks Gaming |
| Release | August 2023 |
| Game type | Hold and Win slot |
| Grid | 3×3 |
| Traditional paylines | None |
| RTP | 95.66% |
| Volatility | Medium |
| Maximum win | x2,551 |
| Standard Coin values | x1 to x4 |
| Sticky Coin values | x5 to x9 |
| Mini Jackpot | x10 |
| Minor Jackpot | x20 |
| Major Jackpot | x50 |
| Grand Jackpot | x500 |
| Starting respins | 3 |
| Free Spins | No |
| Bonus Game | Available |
| Ultra Bonus Game | Available |
| Demo | Available |
Coin Volcano does not use regular picture symbols that create conventional line wins. The base game prepares the 3×3 grid for the bonus mechanics.
Three symbols on the middle row activate the Bonus Game and award three respins.
Sticky Coins can appear during the base game. A Sticky Coin remains locked on its position until the respin feature begins. Sticky Coin values range from x5 to x9 the total bet.
During the Bonus Game, new symbols remain on their positions. Every new qualifying symbol resets the respin counter to three. The feature ends when the player completes three respins without adding another symbol or when all nine positions on the grid are occupied.
How to Play Coin Volcano
A Coin Volcano session begins with the standard 3×3 grid.
Starting a Game and Choosing Bet Size
- Open Coin Volcano from the 1xBet casino.
- Check the total bet displayed by the game.
- Select the required stake.
- Start a spin.
- Watch the middle row for the three symbols required to trigger the Bonus Game.
- If Sticky Coins appear, they remain locked until the bonus starts.
- When the Bonus Game begins, follow the three respin counter.
- Wait for the entire bonus sequence and final calculation to finish before starting another paid spin.
Changing the stake changes the monetary value represented by the game’s multipliers. A x10 result with a 10 ZAR total bet equals 100 ZAR, while the same x10 result with a 20 ZAR total bet equals 200 ZAR.
The exact South African minimum and maximum stake are not included here because a verified ZAR range for the current 1xBet South Africa configuration is not available.
Sticky Coins and Hold and Win Mechanics
Sticky Coins are special symbols that appear during the base game.
Their documented values are:
- x5
- x6
- x7
- x8
- x9
Once a Sticky Coin appears, it remains on the grid until the Bonus Game or Ultra Bonus Game starts.
The standard Bonus Game begins when three symbols occupy the middle row.
At the beginning of the feature:
- The player receives three respins.
- Existing qualifying symbols remain locked.
- Empty positions continue to respin.
- Every new symbol that lands remains in place.
- Every new symbol resets the remaining respins to three.
The feature ends when no new symbol appears during three consecutive respins or all nine positions become occupied.
Demo Mode and Real Money Gameplay
Coin Volcano has a demo mode that uses virtual credits.
Demo mode can be used to examine:
- the 3×3 layout
- Sticky Coins
- the three respin system
- the Bonus Game
- Volcano Multipliers
- Mystery Symbols
- Coin Collect
- jackpot symbols
Demo credits do not have cash value.
Real money mode uses the selected cash stake for each paid spin. Coin and jackpot values are calculated as multiples of the total bet.
For example, a x20 Minor Jackpot equals:
| Total Bet | Minor Jackpot |
|---|---|
| 5 ZAR | 100 ZAR |
| 10 ZAR | 200 ZAR |
| 20 ZAR | 400 ZAR |
| 50 ZAR | 1,000 ZAR |
Coin Volcano Bonus Features
Coin Volcano includes the Bonus Game, Ultra Bonus Game, Sticky Coins, Volcano Multipliers, Mystery Symbols, Mystery Jackpot Symbols, Coin Collect and four fixed jackpot levels.
Respin Bonus Game
The Bonus Game is activated by three symbols on the middle row.
The feature starts with three respins.
Every new symbol that lands during the feature:
- Remains locked on the grid.
- Adds its value or special function to the bonus.
- Resets the respin counter to three.
The feature continues until three consecutive respins add no new symbol or all nine grid positions are occupied.
Regular Coin symbols have values from x1 to x4 the total bet.
Ultra Bonus Game
The Ultra Bonus Game can activate randomly from the base game.
It uses the same 3×3 bonus grid and respin structure as the standard Bonus Game.
The major difference is the Volcano Multipliers Feature. It is guaranteed to activate at the beginning of an Ultra Bonus Game.
The Ultra Bonus Game therefore begins with multipliers already being assigned to positions on the grid.
Volcano Multipliers
The Volcano Multipliers Feature can activate randomly during the Bonus Game.
When it activates, the volcano places between one and nine multipliers on random grid positions.
If more than one Volcano Multiplier reaches the same grid position, their values are combined for that position.
The resulting multiplier is applied to the Coin or Jackpot value occupying that position when the feature result is calculated.
In the Ultra Bonus Game, a Volcano Multipliers activation is guaranteed at the beginning of the feature.
Mystery Symbols
Coin Volcano has two Mystery symbol types.
The standard Mystery Symbol can transform into any eligible symbol except a Sticky Coin.
The Mystery Jackpot Symbol can transform into one of three jackpot symbols:
- Mini
- Minor
- Major
The Mystery symbols reveal their final symbols during the bonus sequence before the final result is calculated.
Coin Collect
The Coin Collect symbol collects the values currently displayed by Coin and Jackpot symbols on the grid.
If a collected position has an applicable Volcano Multiplier, the multiplier is applied to that position before its value is collected.
After Coin Collect activates, the symbol remains on the grid until the Bonus Game or Ultra Bonus Game ends.
Coin Volcano Jackpots
Coin Volcano uses four fixed jackpot levels.
| Jackpot | Value |
|---|---|
| Mini | x10 total bet |
| Minor | x20 total bet |
| Major | x50 total bet |
| Grand | x500 total bet |
Mini, Minor and Major can appear as Jackpot symbols during bonus play.
They can also be revealed by the Mystery Jackpot Symbol.
Grand Jackpot
The Grand Jackpot pays x500 the total bet.
The Grand condition is connected with filling all nine positions of the 3×3 bonus grid.
For example:
| Total Bet | Grand Jackpot |
|---|---|
| 5 ZAR | 2,500 ZAR |
| 10 ZAR | 5,000 ZAR |
| 20 ZAR | 10,000 ZAR |
| 50 ZAR | 25,000 ZAR |
The x500 Grand Jackpot is not the overall maximum win of Coin Volcano.
The full game maximum is x2,551 because Coin values, Jackpot values and Volcano Multipliers can contribute to the completed bonus result.
Coin Volcano RTP, Volatility and Maximum Win
Coin Volcano has a theoretical RTP of 95.66%.
This corresponds to a theoretical house edge of 4.34%.
RTP describes the game’s mathematical return across a very large number of wagers. It does not mean that a player who stakes 1,000 ZAR during one session will receive exactly 956.60 ZAR back.
Medium Volatility
Coin Volcano is classified as a medium volatility slot.
The majority of the game’s payout mechanics are concentrated in the Bonus Game and Ultra Bonus Game rather than conventional base game paylines.
Changing the stake does not change the published 95.66% RTP or turn a previous result into a predictor of the next spin.
Maximum Win of x2,551
The maximum documented Coin Volcano result is x2,551 the total bet.
Examples:
| Total Bet | x2,551 Maximum |
|---|---|
| 1 ZAR | 2,551 ZAR |
| 5 ZAR | 12,755 ZAR |
| 10 ZAR | 25,510 ZAR |
| 20 ZAR | 51,020 ZAR |
The x2,551 limit is the overall game maximum. It should not be confused with the x500 Grand Jackpot.
Playing Coin Volcano on Mobile Devices
Coin Volcano uses an HTML5 compatible game format and can run through the 1xBet casino interface on mobile devices.
A separate Coin Volcano application is not required.
The mobile version retains the same central game elements:
- 3×3 grid
- total bet control
- spin control
- Sticky Coins
- three respins
- Bonus Game
- Ultra Bonus Game
- Volcano Multipliers
- Coin Collect
- Mystery Symbols
- four jackpot levels
Mobile Interface and Browser Gameplay
The entire game uses only nine grid positions, arranged in three columns and three rows.
The smaller layout allows the complete grid to remain visible on a mobile screen.
A bonus round can continue after the initial paid spin through several respins. The completed result should therefore be read after the respin counter finishes and all Mystery, Coin Collect and multiplier calculations have been resolved.
An internet connection is required for the game to communicate spin instructions and completed results with the casino platform.
FAQ
No. Coin Volcano does not have a traditional Free Spins feature.
Its main special round is the Bonus Game, which begins with three respins.
Three symbols on the middle row trigger the Bonus Game.
The feature begins with three respins. Every new symbol remains on the grid and resets the counter to three.
The Bonus Game ends after three respins without a new symbol or when all nine grid positions are occupied.
Regular Coin symbols have values from x1 to x4 the total bet.
Sticky Coins have values from x5 to x9 the total bet.
They can appear during the base game and remain locked until the bonus begins.
The four fixed jackpots are:
- Mini at x10
- Minor at x20
- Major at x50
- Grand at x500
The Grand Jackpot condition is filling all nine positions on the 3×3 bonus grid.
The Grand award is x500 the total bet.
The overall maximum win is x2,551 the total bet.
This is higher than the x500 Grand Jackpot because the complete result can include Coin values, Jackpot values and Volcano Multipliers.
The published RTP is 95.66%.
Coin Volcano has medium volatility.
Coin Volcano was developed by 3 Oaks Gaming and released in August 2023.
The Mystery Symbol can reveal any eligible symbol except a Sticky Coin.
The Mystery Jackpot Symbol reveals Mini, Minor or Major.
Coin Collect gathers the values of the Coin and Jackpot symbols currently on the grid.
Applicable Volcano Multipliers are calculated before the values are collected.
The Ultra Bonus Game can activate randomly from the base game.
It uses the bonus respin mechanics and guarantees the Volcano Multipliers Feature at the beginning of the round.
Yes. Coin Volcano has a demo mode that uses virtual credits and reproduces the main game mechanics without using cash stakes.
Yes. Coin Volcano supports mobile browser gameplay through the 1xBet casino interface. A separate Coin Volcano app is not required.
