Coin Volcano 2 slot review: a bigger grid, the same four jackpots
- 95.76%RTP
- Grand 500xMax win
- 3x5Layout
- Medium to highVolatility
Coin Volcano 2 (3 Oaks Gaming, 7 August 2025) makes one trade-off, and everything else follows from it: the grid grows from 3x3 to 3x5, filling the middle row with bonus symbols starts the Bonus Game, Volcano Multipliers that land on the same cell combine, and the headline figure drops from the original’s 2,551x advertised maximum to a 500x top jackpot. The four fixed jackpots stay: Mini 10x, Minor 20x, Major 50x, Grand 500x (may vary by casino version). Whether that suits you depends on what you play for: busier bonus rounds, or the size of the rare peak. This is not a better or worse Coin Volcano ; it is a different wager on the same mechanic.
Specification
| Features | Coin Volcano 2 |
|---|---|
| Provider | 3 Oaks Gaming |
| Release date | 7 August 2025 |
| Layout | 3x5 |
| Paylines | 1 |
| RTP | 95.76% |
| Volatility | Medium to high |
| Bet range | $0.10-$100 |
| Max win | 500x (Grand) |
| Jackpots | 4 tiers incl. Mini 10x, Minor 20x, Major 50x, Grand 500x (may vary by casino version) |
| Features | Hold and Win, Sticky Coins, Jackpot Coins, Mystery Symbols, Mystery Jackpot, Coin Collect, Volcano Multipliers, Ultra Bonus, Boost Bonus Game, Bonus Buy |
| Free spins | No |
| Demo | Yes |
| Mobile | Android / iOS |
Note the last mode line: internationally the sequel sells its bonuses through Bonus Buy (50x for the Bonus Game, 100x for the Ultra Bonus Game, 300x for the Boost Bonus Game, whose multipliers start at x5). UKGC-licensed slots may not offer feature-buy at all, so British players get exactly two modes (the standard bonus and the randomly triggered Ultra Bonus) and lose nothing they could legally have had.
Original vs sequel in one look
| Criterion | Coin Volcano | Coin Volcano 2 |
|---|---|---|
| Grid | 3x3, 1 line | 3x5, bonus from a full middle row |
| Headline figure | 2,551x max win | 500x top jackpot |
| Bonus positions to fill | 9 | 15 |
| Fixed jackpots | 4 (Grand 500x or 2,500x by version) | 4 (Grand 500x) |
| Multiplier behaviour | One to nine volcano multipliers; guaranteed in Ultra Bonus | Up to nine, combining on the same cell; guaranteed in Ultra Bonus |
| Session texture | Short, decisive rounds | Longer, incremental rounds |
Fifteen positions take longer to fill than nine, and that defines the sequel: the bonus round becomes a gradual build, not a quick resolution, with more Mystery symbols and multiplier cells in play per round. Filling everything pays the 500x Grand on top of the collected coins.
Before you stake
Run both demos back to back (the Coin Volcano 2 demo , then the original’s ) and notice which kind of dead stretch annoys you less; that answers the choice better than any table. Then read the UK bet-sizing guide , check operators against the casino checklist , and see player reviews for how sessions ran. Android access is covered on the Android APK page . For the full specification, the fact sheet lists it and how the game works runs the round in order.
The app page separates the licensed operator apps that carry the sequel from the browser routes that install nothing and reverse in a second. The RTP page shows why the multiplier cells leave the house edge exactly where it was and what that works out to across a thousand spins.
18+. UK play is capped at £5 per spin (£2 at 18-24) with no credit cards accepted. BeGambleAware.org offers free support; GAMSTOP covers self-exclusion.