Dolphin Gold is powered by Lightning Box Games and is a 5 reel, 40 payline video slot which can be played from 40p to £80 a spin. It has an underwater theme featuring iconic animals and more importantly, reward granting dolphins. Visually superb, it has a land-based feel to it which makes it more appealing in my opinion. On top of this, it’s available to play on mobile and tablet devices.

In terms of the base game, look out for the blue dolphin symbol which is both the wild and scatter. When it forms part of a winning combination, all substituted wins are doubled (2x multiplier) – however, the blue dolphin will only appear on the 3 middle reels (2, 3 and/or 4).

The main attraction is the Free Games feature which is triggered when you get 6 or more wild/scatter symbols on the 3 middle reels. 6 gives you 3 free spins, 7 gives you 6, 8 gives you 9 free spins, 9 gives you 12, 10 gives you 15 free spins, 11 gives you 18 free games and 12 scatters gives you 21 free spins. You can also trigger more free spins during the feature (as described above).

However, what makes this feature appealing is that further stacks of Wild Gold Dolphins are added to the reels (on reels 2, 3, 4 and 5). This gives you the chance to have 16 reel positions as wild – however, all wins will be doubled if you get a wild!

I really like Dolphin Gold and especially when I have a big win in the free spins feature – when you get a big win, you will see racing sea horses that gallop across the screen spilling out gold coins. It’s a medium to high variance game with the maximum win over 360 times your stake in the base game and over 390 times your stake in the free spins feature.

This is the first slot by Lightning Box Games I’ve reviewed and it’s a good one – the visuals and audio are superb and I found it very enjoyable and thrilling. I’ve won over 220 times my stake in the free spins feature a couple of times now and I hope they continue to release slots of this nature. If you like underwater themes slot, Lord of the Ocean by Novomatic and Ariana by Microgaming and worth playing.