A spooky science lab is always a great setting for a mobile slot game. Frog Grog is 5 reels and 23 paylines slot developed by Thunderkick Games. The game seems to be based on a science lab. A particularly eerie one with dim lights, bright glowing jars on the shelves. This actually makes for a very nice setting thus enticing you to start playing this game right away the minute you lay eyes on it.

About the Developer

Thunderkick is a relatively young game developing company that has been garnering a lot of attention recently. The company is based out of Stockholm and has a Maltese gaming license. It was founded by a team with years of gaming and game developing experience.

About the Game

As mentioned above Frog Grog is a 5 reel and 23 payline slot game. The game can be played from as low as 10p per spin to as much as 100£ per spin. To start spinning the reels all you need to do is to set your bet for the next spin on the bet tab on the screen and then hit the spin button. The game also has an autoplay option for those who are too lazy to hit the spin the button after every other spin.

There are 6 main symbols in the game. Four jars filled with a moth, a flower, a heart and a pair of eyeballs. The other two symbols are blue and green portions. The frog symbol is the wild and it acts as a replacement for all the other symbols to help form a winning payline.

Bonus Features

Dropping Symbols

Perhaps the best feature Frog Grog, Dropping Symbols is a feature where each time you win, the winning symbols disappear and more symbols fall down from above. This increases your chance of landing a win on the next spin. On each continuous drop, the multiplier keeps on increasing from 1x to up to 7x. So, this is definitely a feature to watch out for.

Mystery Game

Now this is something new. So, if you have a hard luck and win nothing on the spin don’t worry the game will give something to cheer you up. The Mystery Game may get triggered in a random manner and all the symbols except the 3 high-value symbols disappear and are replaced by more of the same. Thus it increases your chances of landing a high-value win in the next spin.


Frog Grog is definitely an exciting slot game. It has all the ingredients to make it entertaining for the players to play the game. A great theme, good gameplay and some really cool bonus features. So, there is nothing much left to ask for.

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