Selecting a wager of 0.20 to 100 per individual paid turn is required to initiate the search, but eligible players also have the option of purchasing two bonus rounds. The utmost return to player for the standard mode of play is 96.09 percent. In the centre of Mine & Melt's idyllic setting is a 4x4 gaming panel on which 16 symbols appear on each turn, providing 256 ways to win. A payout is triggered when matching symbols appear on three or four consecutive reels from the left. For four regal symbols, payouts range from 0.5 to 1 times the wager, from 2.5 to 5 times the wager for four hats, lanterns, picks, or pan mids, and from 15 times the wager for four gold bars.
As can be seen, Mine & Melt does not feature a standard 1x1 wild insignia, but instead has Three Lucky Swedes. While the grid is spinning in the primary game, reels 2-4 may randomly transform into Wild Miner symbols. Wild Miner symbols appear completely stacked on the reels they land on, and in addition to substituting for standard pay symbols, they also feature multipliers ranging from x2 to x4.
There are bonus symbols on all four reels. Hit three of them in Mine & Melt's primary game to unlock the bonus game. It begins with three lives, which are indicated on the right side of the grid. Only Collector symbols containing a wager multiplier (beginning at x2) and Smeltdown symbols can appear during the bonus game.
When any of the aforementioned symbols appear, the number of lives is reset to 3, with the feature concluding when all lives are depleted. Whenever two Collector symbols of equal value are adjacent on the grid, a random pair is chosen to be Merged, combining the values into a single symbol and freeing a position on the board. In the bonus game and the Super bonus game, Smeltdown symbols appear with multiplier values of x2 and x4, respectively. This multiplier multiplies the total values of all visible Collectors. Any subsequent Collector symbols are multiplied by the Smeltdown multiplier as well. The only distinction in the Super bonus game (activated by landing four bonus symbols) is that players receive four lives instead of three.