Shamrock Miner delves into a vibrant subterranean world where a cheerful leprechaun guides players on a gold-mining adventure across a 5x4 grid with 12 fixed paylines. The game features Cash Symbols, represented by dynamite sticks, which the Leprechaun Wild collects to award instant prizes. Landing three or more Gold Pot Scatters triggers the Free Spins round, where the grid can expand up to 5x7, increasing the paylines. During Free Spins, a progressive multiplier applies to all collected Cash Symbols, and collecting additional Leprechaun Wilds retriggers the bonus, leading to high-volatility wins up to 5,000 times the stake.