Coin Volcano Review
Coin Volcano is a slot from Booongo. It uses 3 reels and 3 rows.
Coin Volcano Features
About the game
Coin Volcano comes from Booongo. On 5 November 2026 it was number 108 on the Slots Launch list of the most played demos.
How it plays
Coin Volcano is a compact 3×3 coin game set on a volcanic island, released in August 2023. The game is listed under Booongo here, the name 3 Oaks Gaming went by before its rebrand, and its page is now on the 3 Oaks site.
Three bonus symbols on the middle row start the Bonus Game with three respins. Sticky Coins stay locked in place until a respin round starts, which makes the bonus easier to reach, and a Volcano Meter fills with each symbol on an active line and starts the bonus when it is full.
The Bonus Game
During the respins you collect bonus symbols with cash values and can land the Mini, Minor and Major jackpots. A Mystery Jackpot symbol reveals one of them, a Mystery symbol can turn into any symbol except the Sticky Coin, and the Collect symbol gathers every coin value on the grid. Filling the whole grid can win the Grand jackpot of 500× the bet.
The Volcano Multiplier feature can start at random during the respins and place one to nine multipliers on the reels. The Ultra Bonus Game also starts at random and guarantees the Volcano Multiplier feature from its first spin.
RTP, volatility and max win
Neither the studio's page nor Slots Launch gives an RTP or volatility for this game. Casinos can pick a lower RTP setting where the studio offers one; the game's info screen shows the version you're playing. Source: 3 Oaks Gaming: Coin Volcano.
Playing the demo
The demo on this page runs with play money through Slots Launch. Open the paytable or info screen inside the game to see the symbol values and bonus rules for the version you are playing.
Coin Volcano Pros and Cons
Strengths
- Sticky Coins make the bonus easier to reach
- Random Volcano multipliers
- Ultra Bonus Game
Limitations
- Grand jackpot of 500× is modest
- 3 Oaks gives no RTP on its page
Our Verdict
A small, quick coin game where the random volcano multipliers do the heavy lifting.
Coin Volcano FAQs
Who makes Coin Volcano?
Booongo.
What is the RTP of Coin Volcano?
Neither the studio nor Slots Launch publishes one; check the game info at your casino.
Can I play Coin Volcano for free?
Yes, the demo on this page uses play money.
