Frog Grog

Published: September 27, 2016|Updated: May 22, 2020

Dropping Symbols with x7 Multiplier + 2x Halloween-style Bonuses

As Halloween’s just behind the corner, Thunderkick has a brand new “spooky” slot available for play called Frog Grog. It’s the first ever Thunderkick slot with 23 paylines, and it’s played at a medium to high risk. More importantly, it has three features, which can produce wins of up to 1,600x the total stake.

Having studied the technical side of it, here’s how Frog Grog slot compares to others with its 3 bonuses + how to win them.

Play Frog Grog at Licensed Slot Site
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Free Spins available upon registration on Book of Dead. Bonuses have a wagering requirement: 30x bonus + deposit (game weighting applies). Max bet applies. Min deposit: €10. New 18+ customers only. Play responsibly. Full T&C apply.

Dropping Symbols – Win More for Less with Free Re-spins

Frog Grog Dropping Symbols.
Featuring Dropping Symbols that help you win more for each paid spin.

Whether you call it Dropping Symbols, Rolling Reels (Jungle Jim) or Avalanches (Gonzo’s Quest) it’s all one and the same. Meaning, each time you trigger a winning combo, it’ll disappear and create empty spots for new or existing symbols from above. This naturally generates more winning opportunities and half re-spins, free of charge.

This is not the first time Thunderkick uses Dropping Symbols. In fact, their flagship slot Esqueleto Explosivo and Birds on a Wire (which Betsoft took as a base for their slot Birds!) have exactly the same feature. There’s just one important difference in the way Dropping Symbols work in Frog Grog.

As winning symbols/potions explode, only new potions can take their place and not the ones above them. Whether this affects the game for better or worse only practice will show. Players seem to like it so what more can we ask for, right? Well, almost.

Increasing Multiplier

Frog Grog increasing Multiplier feature that goes up to x7.
Trigger Ultra Wins with the help of a progressive multiplier.

Usually, with falling or dropping symbols there’s a win multiplier to spice it up some more.

The multiplier (on the right from the reels) increases one step with every re-spin or each time new symbols are dropped in. It grows from x1 to x2 after the first re-spins, and to x3, x5 and x7 for the following re-spins. So all wins after the 4th re-spin are worth 7x more. In contrast, the Birds On a Wire slot has one multiplier less: x1, x2, x3 and x5.

And speaking of increasing multipliers, it’s one of Thunderkick’s favourite features. Such progressive multiplier can also be found in video slots like Barber Shop, Fruit Warp, and Sunset Delight. The only difference is that you need a Free Spins bonus to activate it. Although there’s no Free Spins or Inwinity Spin in the frog game (like in the birds and barber shop slots), there are 2 more bonuses that we can look forward to, both of which are random.

Here they are, one by one.

Wild Frog Feature or Frog Burp – Remains Fixed for Re-spin and Sure Win

In addition to Frog Grog’s 6 regular symbols – which multiply line wins by up to 10x – the wizardry game also features the Wild Frog. The frog initially appears in red and acts like a regular Wild, substituting for any other symbol.

Here’s the fun part: The Wild will then remove all symbols on the same row and column (except other frogs), and freeze for 1 more game round or until it triggers a win.

The point is to keep it in view for a minimum of 1 more re-spins or till a guaranteed win. More Wilds can appear as usual, and do more magic. Such feature will kick in with every Wild, which is good news, just like the next bonus.

Random Mystery Game – Removes Low Value Symbols for Guaranteed Win

Frog Grog mobile slot Frog Burp mystery feature.
Frog Burp mystery bonus awards scatter wins and leaves 3 high value symbols on the screen.

At times when no wins are to be seen, the Frog Grog slot may summon unworldly spirits and award you a bonus just because it can.

The feature will remove all symbols but the 3 most valuable ones: two of the highest paying symbols (the Moth and Flower) and the Wild Frog. The symbols that get removed award wins according to the paytable. In the technical terms, you’ll be awarded scatter wins, whenever possible, to form combos of at least 3 of a kind.

And let’s not forget that as that happens, the Multiplier also increases one step for each win during the Mystery Game. So wins can be worth up to 7x more. And since it’s triggered without will, it’s the best when the mystery feature kicks in when you’re at the highest multiplier.

This random feature reminds me of the fact that Thunderkick has also included not one but three random features in its Russian-themed and 17-line Babushkas slot, which can produce “Wipe Wins” of 100x the total bet and more.

That said, let’s sum up what the Frog Grog mobile slot will bring us this Halloween.



Play Frog Grog Slot This Halloween

Let’s recap the most important.

The Frog Grog slot is played at a medium to high risk (hit frequency 28.5%) and has the following 4 features:

  • Dropping Symbols make winning combos explode and create free half re-spins.
  • As that happens, the win multiplier increases from x1 to x2, x3, x5 and x7.
  • Wild Frog removes all symbols on the same reel and row, and stays fixed till win.
  • Mystery Game is a random feature that awards scatter wins (can be multiplied).

Play Frog Grog slot for free or real money at Casumo.


Welcome bonus
Get 20 Free Spins + 100% to €300
Play here

Free Spins available upon registration on Book of Dead. Bonuses have a wagering requirement: 30x bonus + deposit (game weighting applies). Max bet applies. Min deposit: €10. New 18+ customers only. Play responsibly. Full T&C apply.

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