Is there treasure buried at the bottom of the ocean? That’s what you’ll be hoping to find in Riches of the Sea, a 5 reel, 20 payline slot powered by 2 By 2 Gaming. The likeliest way to swim away with a haul of coins comes via the bonus feature that awards up to 32 free spins with wild multipliers that can boost your wins by up to 27x. Dip your toe into the water from between 20p and £25 per spin.

Set against the backdrop of the ocean floor, the reels in Riches of the Sea are nicely designed. The lower value playing cards, which are all in blue, are joined by a brightly coloured collection of marine life. They include an orange and white striped tropical fish, an octopus, a dolphin, a shark and a whale.

5 whales in a line will get you a payout of 600 times your line bet. The most rewarding standard symbol is the Riches of the Sea logo which offers payouts of between 10 and 750 times your line bet if you land between 2 and 5 of them on 1 of the game’s 20 paylines.

The mermaid is the game’s wild, substituting for all other symbols apart from the pearl shell which is the scatter. Land 3, 4 or 5 of the scatter anywhere on the reels and you’ll trigger the Free Spins feature that offers 8, 12 or 16 free spins.

The feature is played out on a new set of reels where all of the lower value playing card symbols have been removed. Keep a special eye out for the mermaid here too – as well as being a wild, she’ll also boost any payline in which she appears with a multiplier.

1 mermaid and the payout will be doubled or trebled. 2 and it will be boosted by 4x or 9x. 3e in a payline and it will rocket by 8x or a whopping 27x! You can also retrigger the feature with a potential 32 free spins up for grabs.

Activating the feature is the likeliest way to netting a decent score – we found it to be a bit of a hit and miss affair. On occasions we missed out entirely. At other times we managed to land a fine catch thanks to the big multipliers. Make sure you have the bankroll to cope with the swings that will undoubtedly come.

Riches of the Sea is pretty simple, both in terms of looks and playability. If your luck is in and the mermaid works her multiplier magic, Riches of the Sea has the potential to live up to its name. If you like the theme, IGT’s Lucky Larry’s Lobstermania 2 or NetEnt’s Lucky Angler are recommended.