The Mermaid's Millions slot game uses a cool underwater theme that's been popular among players for a long time. The key aspect of this game that you need to realize is that it combines two solid bonus features with a moderately-high jackpot and a balanced overall paytable to give players a medium volatility with no huge spikes when it comes to swings or long losing streaks. It has five reels and 15 paylines, and the coins go from $0.01 to $1. You can bet as many as five coins on each payline for a betting range of $0.15 to $75 per spin.
King Neptune is the main symbol in The Mermaid's Millions game, and he's wild. Pick up five of the king of the sea on an activated payline to trigger the 7,500x top jackpot. Aside from that, you'll also find a number of mid-range payouts with chests, clams, sea horses and the typical card symbols A/K/Q/J/T.
If you pick up three or more of the scattered mermaid symbol, then you'll be given 10 free spins. All of your wins during these spins are hit with a 3x multiplier, so the top jackpot is worth a whooping 22,500x during this feature. You can also pick up three or more of the treasure chest on an activated payline for a second screen feature where you choose from chests to get instant wins. You can pick up as many as 2,500 extra coins in this feature. Overall, this is a solid Microgaming slot with a lot of ways to get value from the paytable and the bonus features.