Frog Grog Slot Review

⭐ 7/10
Create by: Thunderkick
Review by:
Posts by Michael White
Updated: November 29, 2025

Frog Grog is a High volatile slot from Thunderkick with an RTP 96.1% and up to x1616 maximum win. Play demo for free.

Frog Grog Slot Demo

Software
Release Date
2016-10-19
RTP
96.1%
Max Win
x1616
Volatility
High
Bet Range ($,€,£)
0.10 - 100
Number of Reels
5
Betways
23
Features
Animals, Cascading Reels, Fantasy, Increasing Multiplier, Magic

Game description  Frog Grog

When I first loaded Frog Grog, I found myself in a witchs potion room, staring at a tall bookcase where the shelves act as five reels and three rows with 23 fixed paylines. Symbols drop down onto the shelves rather than spinning, which gives the slot a fresh feel. Every win clears space, new symbols fall in, and the cauldron bubbling in front of the reels sets the tone nicely.

Frog Grog runs with an RTP of 96.1% and medium volatility, so I get a steady mix of smaller hits and bursts of bigger payouts. Stakes range from 0.10 up to 100 per spin, which suits both low and higher rollers. The multiplier ladder sits on the left-hand side, rising from 1x up to 7x across consecutive wins, so even modest combinations can turn into decent returns.

Frog Grog slot screenshot

Appearance and accessibility in Frog Grog

Visually, Frog Grog has that familiar Thunderkick style, with spell books, empty cages and glowing potions filling the screen without cluttering the controls. I like that the buttons and displays tuck around the edges, keeping the focus on the shelves and the cauldron. On mobile and tablet the layout stays clear, so I can drop into a few rounds on the move without losing any of the atmosphere or features.

How to Play Frog Grog

Playing Frog Grog feels straightforward once you get used to the dropping symbols. I set my bet with the Thunderkick controls, hit spin, and watch the potion ingredients fall into place across the 23 paylines. Wins land when three or more matching symbols line up from the left, and any winning icons explode, leaving gaps on the shelves that fresh symbols fill, which can chain into new wins within the same paid round.

I often use autoplay for longer sessions, but manual spins work just as well if I want to control the pace. Each cascade nudges the multiplier one step higher on the ladder, so long runs of drops are where the slot really comes alive. There are no free spins to learn, so once I grasp the basics of the multiplier, Wild Frog and Mystery Game, the rest is all about pacing my bankroll.

Frog Grog Bonuses and Features

The dropping symbols feature is the backbone of Frog Grog. Any winning combination clears its symbols and triggers a fresh drop, keeping the same bet active while the multiplier increases. I start at 1x, then climb through 2x, 3x, 5x and finally up to 7x if I string enough cascades together. Those long chains are rare enough to feel special, but they happen often enough to keep me chasing them.

The Wild Frog is where the slot shows its personality. When he lands, he first acts as a normal wild and can complete paylines. After wins have been paid, the frog belches flames, wiping every symbol on his row and reel. Those positions then fill with new icons while the frog turns blue and stays sticky, acting as a wild until he finally joins another win, which can lead to some powerful cascades.

The Mystery Game is triggered at random when no further drops would occur, and it keeps me on my toes. During this mode, all low-paying potion symbols vanish, leaving only the moth, flower and frog on the shelves. The removed icons award scatter-style payouts up to the value of five of a kind. When the feature ends, the multiplier steps up further for each Mystery Game win, so the base game can return on a higher gear.

Frog Grog Symbols & Payouts

The paytable in Frog Grog is easy to grasp, as there are seven main symbols plus the frog. On the lower side, I get the blue, green, purple and red potion bottles, which pay smaller wins but appear often and help feed the cascades. Moving up the ladder, the heart and flower symbols offer mid-range payouts, while the moth sits at the top as the best regular icon, paying up to 10x for five in a sequence.

Based on a 1 credit stake, five blue bottles pay 2, green pays 2.50, purple pays 3, and red pays 3.50. The flower steps this up to 6, and the moth reaches 10. Any of these can explode, drop in again, and get multiplied during a run of wins. The Wild Frog does not have its own line win, yet its substituting power and the burp effect give it far more value than any standard symbol on the reels.

Symbols and Paytable

Symbol Quantity Payout
icon 1 5 x10
4 x1.7
3 x0.8
icon 2 5 x6
4 x1.2
3 x0.6
icon 3 5 x3.5
4 x0.6
3 x0.3
icon 4 5 x3
4 x0.6
3 x0.3
icon 5 5 x2.5
4 x0.4
3 x0.2
icon 6 5 x2
4 x0.4
3 x0.2
icon 7 Wild

Frog Grog RTP, Maximum Win & Volatility

From a numbers angle, Frog Grog offers a top win of 1,616x my stake, which I see as achievable but still demanding a strong mix of multiplier steps, Mystery Games and well-timed frogs. The 96.1% RTP feels fair for a medium volatility slot, and a quoted hit rate around 28.5% matches my sessions, with regular small and mid-range hits that keep the balance alive while I hunt those bigger cascades.

Frog Grog slot screenshot

Frog Grog Verdict

After plenty of sessions, Frog Grog has become one of those Thunderkick titles I go back to when I want quirky visuals paired with solid mechanics. The mix of dropping symbols, a multiplier up to 7x, the sticky Wild Frog and that unpredictable Mystery Game gives the slot enough depth without overwhelming me with features. I never feel lost, yet I still get that thrill when the ladder climbs and the frogs start burping.

The maximum exposure of 1,616x will not appeal to players who only chase enormous jackpots, but the game feels well balanced for longer play. I like the way the mechanics can stretch a single paid spin into several waves of wins, especially when the Mystery Game kicks in just as a round seems finished. For me, Frog Grog works best as a medium-risk potion mixer with a distinct charm and steady winning chances.

Screenshots

Frog Grog slot screenshot 1
Frog Grog slot screenshot 2
Frog Grog slot screenshot 3
Frog Grog slot screenshot 4
Frog Grog Final Ratings
Theme & Symbols








Sounds & Music








Bonus Features








RTP (96.1%)








Max Win (x1616)








Originality








FAQs About Frog Grog

Can I play Frog Grog free slot?

Absolutely! You can enjoy Frog Grog for free on our website without registration. Our partner casinos of Thunderkick also usually offer demo mode access.

Can I win real money on Frog Grog slot?

Yes, to win real money in Frog Grog, you'll need to create an account at a licensed casino site. You can then play for real and win up to x1616.

Can I play Frog Grog slot on mobile phone?

Yes, Frog Grog is fully optimized for mobile devices and runs smoothly on any devices.

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