Developer Coin Volcano is a 3x3 slot from 3 Oaks Gaming, released in August 2023, with a lava-themed setting on a remote island. The game uses a coin-collecting format and includes a middle-row trigger that can start three respins in the bonus game. A sticky coin remains in place until respins are activated, while bonus symbols can land with different values during the feature.
During respins, players may collect bonus symbols and encounter MINI, MINOR, MAJOR, and GRAND JACKPOT prizes. A mystery jackpot symbol can reveal one of the jackpot levels, while a collect symbol gathers the coin values already on the grid. The volcano multiplier feature can also appear at random, placing one to nine multipliers across the reels.
The demo version is available to play for free, which allows players to practice before playing for real money and see how the bonus rounds work. An ultra bonus game can trigger at random, with a volcano multiplier feature starting the round and the Volcano Metre filling as symbols land on an active line.
