There’s a gentle feel to the design here as green fields, mighty trees and blue skies form the backdrop to the reels here. There’s also the obligatory rainbow and pot of gold on view. The symbols maintain the classic theme and include bronze, silver and gold coins horse shoes, pints of Guinness and green top hats.
Most rewarding is the gold 4-leaf clover - land 3, 4 or 5 of these in the same payline and you’ll pocket 1, 2 or 10 times your total stake. There’s also a wild that can substitute for all other symbols apart from the bonus (the Stacks O’ Gold logo).
Land that bonus symbol on reels 1, 3 and 5 on the same spin and you’ll activate the game’s Free Spins feature - here you can look forward to 15 free spins. Hope to see plenty of wilds during the free spins as they can develop some magical properties.
Land 6 of them (in total, they don’t have to be on the same free spin) and you’ll get another 2 free spins added to your total. Reel 1 will also turn wild for the rest of the feature. Collect 10 more wilds from reels 2-5 and reel 3 turns into a sticky wild too. Again, 2 extra free spins are added.
If you’re lucky enough to land 10 wilds on reels 2, 4 and 5 then reel 5 becomes wild and 1 more free spin is added to your tally. This means you could benefit from 20 free spins in total as well as 3 sticky wild reels! Golden Wilds can land on any free spin too to turn any or all of reels 1, 3 and 5 wild.
The Irish luck theme is an enduringly popular one. They’re usually totally over the top but iSoftBet has reined things back a little. The visuals are quite tastefully done and the harp-heavy soundtrack is a nice addition. The best of the gameplay comes from the Free Spins feature.
We found it quite tricky to trigger and went through some lengthy winless spells. If the stacked wilds work their magic then Stacks O’ Gold has the potential to deliver plenty of treasure though – you can win up to 868 times your total stake on every free spin. If it’s the luck of the Irish you’re after, Shamrockers Eire to Rock by IGT is highly recommended.