Digger’s Fortune by Belatra is a 7-reel slot built around cluster-pay mechanics and cascading wins. Winning clusters form from 5 or more matching symbols connected horizontally or vertically, after which the symbols disappear and new ones fall into place. The game board can expand from a starting height of 4 symbols to 6 during a round, while a 30-level mine shaft tracks progress toward fixed jackpots and the top prize of 25,000x the bet.
The reel set includes Wild symbols, which substitute for regular symbols, and Big Symbols that occupy 2x2, 3x3 or 4x4 spaces. During the cascades, mine-level explosions can reveal boosters such as instant-pay coins, multipliers and dynamite, as well as collected Wilds that return to the reels after the sequence ends. Fixed jackpots are positioned at set depths, including Mini and Minor prizes on levels 4 and 13, with the Maxwin Jackpot at level 30.
Landing 3 or 4 Scatters triggers Free Games, where the mine depth and expanded reel height carry over between spins, and each additional Scatter adds one more spin up to 30. A Hot Mode bonus is activated by 5 Scatters and awards 15 free games with a higher chance of larger clusters. A demo version is available to play for free, allowing users to practice before playing for real money.