Frogblox Slot

Based on our expert’s review. Reviewed by
ELK Studios Slot Reviews
Review by
Martin Backhouse
Updated: 27/03/2024
Review by
Martin Backhouse
Updated: 27/03/2024

Join an amphibian treasure hunter who goes by the unlikely name of Harrison Frog in the Frogblox slot, a beautifully designed 6-reel game from ELK Studios, which is packed full of extras. Our intrepid explorer’s goal is to track down the lost riches of Toad Temple hidden in the jungles of Croaker Island. Those riches can top 25,000 x bet. Keep a special eye out for the feature shelf which can deliver wilds, multipliers, big symbols, win both-ways payouts, symbol drops and free games. Find out more about this unusual slot in our detailed Frogblox review below.

Max Win
25,000 x bet
T&Cs Apply

18+. New depositors only. UK residents only. Minimum deposit $10. Free Spins are valid only on Starburst and expire in 7 days. 10x wagering apply. Certain deposit types are excluded. T&Cs apply. #ad

ELK Studios
Type of Slot
6x6 Grid
Stakes Range
20p to £100
Bonus Features
Free Spins/Multiplier
Max Win
25,000 x

Frogblox Demo

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T&Cs Apply 18+. New depositors only. UK residents only. Minimum deposit $10. Free Spins are valid only on Starburst and expire in 7 days. 10x wagering apply. Certain deposit types are excluded. T&Cs apply. #ad
18plus uk-gambling-commission online-slot-co-uk-logo agechecked-verification-provider
T&Cs Apply 18+. New depositors only. UK residents only. Minimum deposit $10. Free Spins are valid only on Starburst and expire in 7 days. 10x wagering apply. Certain deposit types are excluded. T&Cs apply. #ad

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Frogblox Slot RTP, Details & Wager Limits

Reels/Paylines: 6×6 grid + 46,656 ways to win

Stakes Range: 20p to £100 per spin

Max Win: 25,000 x stake per spin

RTP: 94%

The Frogblox slot is played on a 6×6 grid and has 46,656 ways to win. Some of the symbol positions are blocked though. Create winners by landing 3, 4, 5 or 6 matching symbols or wilds on adjacent reels, starting from the leftmost reel.

You can join Harrison Frog at bet levels of between 20p and £100 per spin. Click on the coins icon then choose from the 12 different bet levels. In territories where it’s allowed, it’s possible to run 10, 25, 50 or 100 autospins. This option isn’t available to UK players, though.

The Frogblox RTP of 94% is rather low and well below the average seen at casino sites in the UK. The game has a hit rate of 26.8% which means on average, a winning combination lands every 3.73 spins. The volatility here is quite high, coming in at around 8 out of 10.

This treasure hunt can pack a hefty payout punch though thanks to a high maximum win of 25,000 x bet.

Theme: head to Croaker Island in search of lost treasures

Theme: Amphibian

High-Value Symbol: Red Gemstone

Compatibility: Mobile, Tablet, Desktop


ELK Studios is among the best in the business when it comes to the design of their slots and Frogblox lives up to the usual high standards. The setting here is the lost pyramid of a kingdom of frogs. The stone pyramid is covered in jungle foliage and flanked by a pair of mighty toad statues and shimmering crystals.

The finely carved stone symbol blocks are made up of A to J royals and three higher-value gemstone symbols. The red gemstone pays the most. In the feature reels above the main game grid is a selection of symbols which can deliver modifiers. We’ll look at these in detail in the bonus section below.

The visuals here are nice and clear, which is important given all the moving pieces involved in the Avalanche reels game engine. The rhythmical soundtrack, complete with the noises of the jungle, fits the fantastical theme rather well. You can play with just the sound effects active if you prefer though.

As usual for a slot from ELK, the design in Frogblox gets a big thumbs up. Here’s what the paytable offers:

Symbol Payouts/Info
frogblox-slot-j-symbolJ 3, 4, 5 or 6 = 0.05, 0.1, 0.2 or 0.3 x stake
frogblox-slot-q-symbolQ 3, 4, 5 or 6 = 0.05, 0.1, 0.2 or 0.3 x stake
frogblox-slot-k-symbolK 3, 4, 5 or 6 = 0.1, 0.15. 0.3 or 0.4 x stake
frogblox-slot-a-symbolA 3, 4, 5 or 6 = 0.1, 0.15. 0.3 or 0.4 x stake
frogblox-slot-butterfly-symbolButterfly 3, 4, 5 or 6 = 0.2, 0.25, 0.5 or 1 x stake
frogblox-slot-beetle-symbolBeetle 3, 4, 5 or 6 = 0.25, 0.3, 0.6 or 1.5 x stake
frogblox-slot-kicker-symbolRed Gemstone 3, 4, 5 or 6 = 0.5, 1, 2 or 5 x stake
frogblox-slot-wild-symbolWild Substitutes for all except Frog + Lilypad symbols

Frogblox Mobile


The superb sound and visuals from the desktop version are on show in the Frogblox mobile slot too. The game has been fully optimised for smartphone and tablet play. That includes Android and iOS handsets.

Frogblox Bonus Features

You need to play attention when you’re playing Frogblox as there’s a lot going on here, starting with the Avalanche reels. Look out as with a flick of its tongue, a frog can bring the extras from the feature shelf into play. There’s also a free spins feature.

Avalanche Reels

Land a winning combination and the successful symbols are blasted off the game grid. Blocked positions that are connected to that winning combination also explode. This opens up positions for the new symbols to drop into and also increases the number of ways to win. Open all the window positions and you’ll have 46,656 ways to win. The Avalanches continue until there’s one where no new winning combination is formed.

Devour Symbols

Keep a special eye out for the blue frog symbols. These symbols can extend their tongue and collect the modifier from the bottom symbol of the feature shelf directly above. If there’s no feature on the bottom shelf, the frog instead removes blocked positions. Here’s what the feature shelf can deliver:

  • Global Multiplier – These payout boosts are collected in the meter alongside the reels and applied to all your wins from that set of Avalanches.
  • Extra Drops – These can add extra drops to your total.
  • Big Symbol – This drops a 2×2 symbol onto the grid.
  • Both Ways – Payouts go from right to left as well as from left to right.
  • Symbol Multiplier – These are applied to win on the frog’s column.
  • Bomb – This removes all the blockers from the feature shelf.
  • Frog to Frog – If a frog pulls down another frog from the feature shelf, it can trigger a feature which could explode and then turn wild.
  • Lily Pad – If a frog doesn’t pull down a feature from the shelf it can jump to a lily pad, and then turn into a randomly chosen symbol.

Free Drops feature


The bonus round in the Frogblox slot game is activated when all the symbol positions on the game grid are unblocked. Any remaining avalanches play out as normal. You’ll then go on to play 6 free games. If you have a Global Multiplier active on the triggering spin, it’s carried over into the free games. Similarly, any Extra Drops are added to your total of free games. The feature shelf extras are in play during the free games, just like in base gameplay.

There’s no upper limit on the number of extra free drops you could get during the bonus round.

X-iter feature

For non-UK players, there is an optional X-iter feature. You can buy different game modes. The 5 options range from 3 x bet per spin up to 500 x your total bet:

Mode Cost Description
Bonus Hunt 3 x bet 4 times more likely to trigger the bonus game.
Big Block 10 x bet A big symbol block is added to the feature shelf.
Frogception 25 x bet A game round is awarded with a scatter collect of all the frog symbols.
Bonus 100 x bet Guaranteed to trigger the free drops bonus round.
Super Bonus 500 x bet A guaranteed trigger of the free drops bonus round with a starting multiplier of 10x.

Frogblox Verdict: a fantastic, feature-packed frog fiesta

Based on our expert’s review. Reviewed by
Frogblox Slot

ELK has put together a fun and unique-looking slot that comes with numerous modifiers to enhance the overall gameplay. Max win potential of 25,000 x bet isn’t bad either!

  • 25,000 x bet max wins
  • Unlimited free drops
  • Plenty of bonus features
  • 94% RTP rate

Frogblox is a rather unusual slot. The gameplay is a little different and a million miles away from your simple but classic fruit machine-style slot. It took us a little while to get used to all the moving avalanche pieces and the extras on offer via the feature shelf.

After we’d got our eye in, we found plenty to like here. Expect loads of variety when it comes to extras thanks to the modifiers on offer from the feature shelf. The free drops can work well if you manage to start the round with a decent Global Multiplier too.

The main downside here is the below-average RTP of 94% which is rather disappointing. The max win potential of 25,000 x bet impresses though.

This probably won’t be for you if you like simple, old-school slots with very straightforward gameplay. If you fancy trying something a little more adventurous, Frogblox, mad theme and all, is a slot worth considering. Give our free demo a try and decide for yourself.

For more frog-related action, check out Push Gaming’s Fire Hopper slot, which boasts 50,000 x bet max wins. Alternatively, why not try something completely different with Peter & Son’s Animafia slot.

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