Coin Volcano

Coin Volcano Quick Facts

Slot Name	Coin Volcano
Provider	3 Oaks Gaming
Slot Type	Video Slot
Theme	Coins, Fire, Volcano
Release Date	2023-08-10
Rating	8.6
Demo mode	Yes
Math & Mechanics
RTP	95.66%
Volatility	Medium
Max Win	2,551x
Grid	3 x 3
Pay mechanics	Hold and Win
Betting Range
Min. Bet	$0.10
Max. Bet	$50
Bonus Features
Free spins	No
Bonus buy	Yes
Jackpot	Yes
Updated	30.03.2026

3x3 grid Coin Volcano is a video slot developed and published by 3 Oaks Gaming, released on August 10, 2023R.

Coin Volcano Review

Coin Volcano is a Hold and Win slot by 3 Oaks Gaming built around a compact 3x3 grid where all symbols are coin-based specials - there are no standard pay symbols. The game features 4 fixed jackpots, Sticky Coins, Volcano Multipliers and a Buy Bonus option.

How to Play Coin Volcano

Coin Volcano uses a 3x3 grid. There are no standard paylines - wins are achieved through the Hold and Win bonus mechanic by collecting coins and jackpot symbols.

Parameter	Value
Rows	3
Reels	3
Min bet	$0.10R
Max bet	$50.00R
Max win	2,551xR
Max win in cash	$153,060
Autoplay	Available
Available languages	English

RTP and volatility

RTP	Volatility	House edge
95.66%R	MediumR	4.34%

The casino operator selects the configuration, the real RTP is typically not disclosed to the player.

Coin Volcano bonus features

Feature	Description
Hold & Spin	Landing 3 special coin symbols on the middle row triggers 3 respins; each new symbol resets the counter, continuing until the grid fills or respins are exhausted
Sticky Coins	Coin symbols remain on the reels until the Hold and Win feature is triggered, then transfer into the bonus round
Multipliers	Random Volcano Multipliers appear on reel positions, multiplying coin and jackpot values; up to 9x per position, stackable
Bonus buy	Two options available: Buy the Hold and Win feature for 30x bet, or the Ultra Bonus Game with guaranteed Volcano Multipliers for 75x bet
Jackpots	Four fixed jackpots - Mini (10x), Minor (20x), Major (50x), and Grand (500x bet, awarded for filling the entire board)

Coin Volcano Symbols & Paytable

Paytable

Symbol	Multiplier
Regular Coin	1x - 4x bet
Mini Jackpot Coin	10x bet
Minor Jackpot Coin	20x bet
Major Jackpot Coin	50x bet
Grand Jackpot (full board)	500x bet

Special symbols

Symbol	Description
Sticky Coin	Remains locked on the reels across base game spins until the Hold and Win bonus is triggered, then carries over into the round
Mystery Symbol	Randomly transforms into another valid symbol during gameplay, including jackpot coins or multipliers
Coin Collect	A Scorching Ball symbol that instantly collects the values of all visible coins and jackpot symbols, applying active multipliers, and locks in place for the remainder of the bonus round
Volcano Multiplier	A randomly awarded positional multiplier (1x-9x) that boosts the value of any coin or jackpot landing on that position; multiple multipliers on the same position stack

Coin Volcano demo (free play)

Coin Volcano can be played in free demo mode on SlotCatalog and several other slot review platforms without registration.

Property	Value
Free play	Available
Demo version	Click to play

Slot series

Coin Volcano is part of 3 Oaks Gaming's Coin Volcano series.

Slot	RTP
3 Coin Volcanoes	95.68%
Coin Volcano 2
3 Super Coin Volcanoes

Related slot games

Slot	Year	RTP	Max win	Key difference
9 Coins (Wazdan)	2022	96.06%	500x	Higher RTP, same 3x3 Hold and Win concept with more winning potential
Cash Volt (Red Tiger)	2020	94.78%	2,500x	5x3 grid, electric theme, cascading symbols with Hold and Win
Hot Fiesta (Pragmatic Play)	2021	95.5%	5,000x	5x4 grid, higher max win, Mexican festival theme with Hold and Win

Where to play Coin Volcano?

Top countries

Coin Volcano is most popular at online casinos in the following countries:

#	Country	SOI	Casinos
1	Mexico	0.39%
2	India	0.36%
3	Spain	0.28%
4	South Africa	0.26%	Casinos in South Africa
5	Netherlands	0.16%

Coin Volcano slot reviews

Site	Rating	Review	Demo Play
CasinoLandia	9.4 / 10	Read review	Available
SlotCatalog.com	7.7 / 10	Read review	Available
Casino.guru		Read review	Available
SlotUp		Read review	Available

FAQ

What is Coin Volcano RTP?

Coin Volcano has a theoretical RTP of 95.66%, which is slightly below the current industry average of 96%.

What is the maximum win in Coin Volcano?

The maximum win is 2,551x the bet. The top fixed Grand Jackpot pays 500x and is awarded by filling the entire 3x3 grid during the Hold and Win bonus round.

How are free spins triggered in Coin Volcano?

Coin Volcano does not have a traditional free spins round. Instead, landing 3 special coin symbols on the middle row triggers the Hold and Win bonus with 3 respins.

Can free spins be retriggered?

There are no free spins in Coin Volcano. During the Hold and Win round, respins reset to 3 each time a new symbol lands.

Is Coin Volcano a progressive jackpot slot?

No, Coin Volcano features 4 fixed jackpots - Mini (10x), Minor (20x), Major (50x), and Grand (500x) - none of which are progressive.

Does Coin Volcano have a bonus buy feature?

Yes, players can purchase the Hold and Win bonus for 30x bet, or the Ultra Bonus Game with Volcano Multipliers for 75x bet.

Is Coin Volcano available on mobile?

Yes, Coin Volcano is built in HTML5 and is fully compatible with iOS and Android mobile devices.

Coin Volcano screenshots

Sources

The information presented is collected from the game provider's official documentation, independent testing agencies, and publicly available game data.