Mermaid Queen is a 5 reel, 10 payline slot from WMS Gaming that can be played across desktop, mobile and tablet devices from 10p to £500 per spin. This simple game comes with wilds that double your outcome when part of a winning combination and a Free Games Bonus feature where you will get 15 free spins, initially, with a 3x multiplier.

Head into a magical land of clear blue waters and magical creatures in this under the sea themed adventure – this simple slot will remind you of classic WMS land-based titles. With cartoon style graphics and set on a pirate ship, symbols on the reels include A, K, Q, J, 10 and 9 playing cards, pirate telescopes, shells with pearls in them, treasure chests, pirate ships, and dolphins.

The young male pirate is the wild symbol and substitutes for all symbols bar the scatter (the Mermaid Queen) – with 1, 20, 200 or 500 times your stake on offer for 2, 3, 4 or 5 anywhere on the reels, it doubles your winning outcome with part of a winning combination.

As mentioned, the Mermaid Queen is the scatter – you will get 2, 5, 20 or 500 times your stake for 2, 3, 4 or 5 across a payline. If you get 3 or more Mermaid Queen scatters simultaneously on a base game spin, you will trigger the Free Games Bonus feature – here, you will be rewarded with 15 free spins with a trebling (3x) multiplier.

If you get a winning combination involving the pirate wild, this will essentially double the 3x multiplier giving you a 6x multiplier! You can also retrigger the feature giving you an additional 15 free spins – I’ve managed to retrigger the feature 3 times which resulted in 60 free spins in total.

With wins of up to 500 times your stake on each free spin, the 3x multiplier will give you a 1,500 times stake win. If you get 4 scatters and 1 wild pirate, a 2x multiplier would be applied meaning you could win 3,000 times your stake, in theory, on every free spin.

Mermaid Queen is very simple – it’s also high variance so don’t expect to trigger the Free Games Bonus feature very frequently. With potential payouts of 1,000 times your stake in the base game and 3,000 times your stake on each free spin, Mermaid Queen has to potential to deliver huge payouts. If you like simple but volatile WMS slots, I recommend you try Zeus or Black Knight II.