Monsters Vs Gigablox Slot Review

Expert Rating: 3.3 out of 5
Review by Martin Backhouse
Last update 29th July 2022
Review by Martin Backhouse
Last update 29th July 2022

Join the battle between colossal beings that will decide the fate of the world in this Monsters Vs Gigablox slot from ReelPlay and Hot Rise Games. The theme has epic characters from futuristic sci-fi robots to ancient Eldritch abominations doing battle as well as combining the gameplay of Yggdrasil’s Gigablox. With a 38.4% hit frequency, winners land quite often as you enjoy up to 40 free spins and up to 6×6 symbols on your way to max wins of 3,116 x your stake. How does this slot stack up against the competition? Discover everything on offer below in our unbiased Monsters Vs Gigablox review.

Monsters Vs Gigablox Max Win
3,116 x bet
Type of Slot
Video Slot
6x6 grid
Stakes Range
50p to £75
Bonus Features
Yes (3)
Free Spins/Multiplier
Max Win
3,116 x

Monsters Vs Gigablox Slot RTP, Details and Wager Limits

Reels/Paylines: 6×6 grid + 50 paylines

Stakes Range: 50p to £75 per spin

RTP: 95.5%

Max Win: 3,116 x stake per spin

The Monsters Vs Gigablox slot is played on a 6×6 grid and comes with 50 fixed paylines. All wins pay from left to right, starting from reel 1. When looking at the paytable, the values equal the total value divided by 50. We’ve outlined the potential payouts below.

Stakes range from 50p up to £75 per spin. It’s got a higher minimum stake than some other slots where 10p or 20p is the norm, but it will cater to most players. Simply use the + and – buttons on either side of the total bet value to the right of the reels.

The Monsters Vs Gigablox RTP is 95.5%, which is lower than the average percentage for an online slot by 0.5%. Highly volatile, it’s worth noting here that the hit frequency is really generous at 38.4%.

The maximum win here is 3,116 x your stake. Your best chance of landing the top prize will come in the Free Spins feature due to the x2 Wilds and the fact that there are 40 free spins up for grabs.

Theme – battle royale for the planet

Theme: Monsters

High Value Symbol: Kongo King

Compatibility: Mobile, Tablet, Desktop


The theme in the Monsters Vs Gigablox slot game is a fun one, with the action taking place above a city that looks doomed with fires in numerous buildings behind the reels. It has a King Kong feel about it with it being set so high as you almost expect Kongo King to be dangling from the top of one of the buildings.

The soundtrack is very suspenseful, which adds to the overall intensity of the game as you spin the reels. The sound of symbols landing is pretty loud too so I thought I’d make you aware of that before you put the volume up too high. Land the bonus feature and the background turns blue and the audio intensifies. It’s a fun slot to play and the theme has been done very well.

On the reels, you’ve got A-9 royals as the lower-paying symbols. These are joined by numerous monsters and other beings that make up the higher-paying symbols. Kongo King is the most lucrative symbol, paying 1, 1.6, 3.2 or 10 x your stake for 3, 4, 5 or 6 in combination respectively.

The game’s Wild is a golden crown, which substitutes for all symbols except Scatter. The monsters can also turn into golden wilds where their values multiply by 2 in the Free Spins feature. here’s a helpful list of the symbols you’ll see in the game:

Symbol Payout/Info
monsters-vs-gigablox-slot-9-symbol9 3, 4, 5 or 6 = 0.1, 0.2, 0.3 or 1.5 x stake
monsters-vs-gigablox-slot-10-symbol10 3, 4, 5 or 6 = 0.1, 0.2, 0.3 or 1.5 x stake
monsters-vs-gigablox-slot-j-symbolJ 3, 4, 5 or 6 = 0.1, 0.2, 0.3 or 1.5 x stake
monsters-vs-gigablox-slot-q-symbolQ 3, 4, 5 or 6 = 0.1, 0.2, 0.3 or 1.5 x stake
monsters-vs-gigablox-slot-k-symbolK 3, 4, 5 or 6 = 0.1, 0.2, 0.3 or 1.5 x stake
monsters-vs-gigablox-slot-a-symbolA 3, 4, 5 or 6 = 0.1, 0.2, 0.3 or 1.5 x stake
monsters-vs-gigablox-slot-pyroana-symbolPyroana 3, 4, 5 or 6 = 0.2, 0.3, 0.5 or 2 x stake
monsters-vs-gigablox-slot-object-51-symbolObject 51 3, 4, 5 or 6 = 0.3, 0.4, 0.6 or 2.5 x stake
monsters-vs-gigablox-slot-great-old-one-symbolGreat Old One 3, 4, 5 or 6 = 0.4, 0.6, 0.8 or 3 x stake
monsters-vs-gigablox-slot-spartan-fighter-v-symbolSpartan Fighter V 3, 4, 5 or 6 = 0.5, 0.8, 1 or 4 x stake
monsters-vs-gigablox-slot-lord-zar-symbolLord Zar 3, 4, 5 or 6 = 0.8, 1, 2 or 5 x stake
monsters-vs-gigablox-slot-kongo-king-symbolKongo King 3, 4, 5 or 6 = 1, 1.6, 3.2 or 10 x stake
monsters-vs-gigablox-slot-wild-symbolWild Substitutes for all symbols except Scatter
monsters-vs-gigablox-slot-scatter-symbolScatter 5+ triggers Free Spins feature

Monsters Vs Gigablox Mobile


Created using the latest HTML5 technology, the Monsters Vs Gigablox slot game is available on iOS and Android devices as well as desktops. The fantastic visuals are enjoyable on smaller screens and it plays very well overall on a mobile or a tablet.

Monsters Vs Gigablox Bonus Features

There are 3 bonus features in the Monsters Vs Gigablox slot – the Gigablox symbols, the Free Spins feature and the Buy Bonus feature. The latter is not available in the UK. Read on as we explain how everything works so that you can fully understand the game.


All symbols can land as Gigablox symbols, which means that they can appear in the following sizes – 2×2, 3×3, 4×4, 5×5 or 6×6. Once the symbols land, they break into individual symbols during the pay cycle. This can lead to big wins.

Gigablox will only land as picture symbols in the Free Spins feature

Free Spins feature


Land 5 or more Scatters in the base game to trigger the bonus feature. Between 9 and 40 free spins will be awarded (4 base + 1 for each triggering Scatter symbol).

The monster that appeared the most on the reels when the feature was triggered will become the dominant monster during the Free Spins feature. This monster will also become a Wild, which is shown as a golden symbol. Any wins with the golden monster or a Wild are paid x2.

Gigablox are larger on average during the bonus round

Buy bonus feature

In most territories outside the UK, you can buy the Free Spins feature for 75 x your stake. You will randomly get between 9 and 30 free spins, and the feature will play out as it normally does if you triggered it normally.

Monsters Vs Gigablox Review Summary – Not as good as other Gigablox slots

Theme & Symbols

Sounds & Music

Bonus Features

RTP (95.5%)

Max Win (3,116 x)


The Monsters Vs Gigablox slot game isn’t too bad. It’s great if you love this type of theme as there’s a lot going on. But when you strip it back, it offers just a Free Spins feature, the Gigablox mechanic, and pretty low max wins of 3,116 x your stake. Compared to others on the market today like 90K Yeti Gigablox from 4ThePlayer, it’s not great.

The visuals and the soundtrack are both fantastic, but I can’t help feeling like there should be an additional feature or something. It’s a good slot on the whole, but it’s missing something for me.

But although the volatility here is high, at least the hit frequency is high at 38.4%. It might not win any awards for the number of bonus features on offer or high max win potential, but, overall, it’s a pretty good slot, albeit lacking a few things.

Looking for more Gigalblox action? As well as 90K Yeti Gigablox I mentioned above with its huge max win potential, check out Water Blox Gigablox from Peter & Sons and Golden Fish Tank 2 Gigablox from Yggdrasil. both have bigger max win potential than this one.

Take a look at the other ReelPlay slots we’ve reviewed. They’re a fantastic provider who has been around since 2014, offering some great slots with numerous themes and fun bonus features.

  • 3,116 x max win
  • 38.4% hit frequency
  • Symbols up to 6×6
  • Highly volatile
  • Low max win vs other slots

Monsters Vs Gigablox FAQs

What is the Monsters Vs Gigablox RTP?

The Monsters Vs Gigablox return to player rate is 95.5%, which is lower than the 96% average for an online slot. But it makes up for it with a very healthy hit frequency of 38.4%, which means that well over a 3rd of all spins on average will result in a winner.

What is the Monsters Vs Gigablox max win?

The maximum win is 3,116 x your stake. Compared to a lot of other slots on the market today, it’s pretty low. Volatility here is in the high range too.

Are there any Monsters Vs Gigablox free spins?

Yes. Land 5 or more Scatter symbols to trigger the Free Spins feature. You can receive between 9 and 40 free spins, and Wilds are paid x2.

Is there a Monsters Vs Gigablox demo?

Yes. You can try the Monsters Vs Gigablox Free Play version here at It’s a great chance to test all of the features before using any real money.