Monster Blox

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Rules and Gameplay

In the captivating world of Monster Blox, players navigate through a fantasy-themed slot crafted by the Armenian studio Peter and Sons, renowned for its visually stunning and innovative games. The slot operates on the Gigablox mechanism, introducing an evolving gameplay with a grid that starts at 6 reels and 4 rows, expanding up to 8 rows to increase winning possibilities. The game’s core revolves around consecutive wins triggering respins and expanding the grid, enhancing the dynamic and engaging nature of each spin.

Bonus Features

Monster Blox is packed with a plethora of engaging bonus features, each designed to enhance the player’s experience and increase their chances of securing significant wins:

  • Expanding Reels: Winning spins trigger a respin and add an additional row to the grid, potentially expanding it to 6×8 dimensions.
  • Wizard Wilds: A whimsical wizard character sporadically zaps the reels, transforming selected symbols into wilds, thereby facilitating richer winning combinations.
  • Free Spins Round: Triggered by landing five or more scatter symbols, initiating a round where each scatter symbol contributes to the total number of free spins and increases the win multiplier, which can skyrocket up to x10.


Monster Blox’s reels are adorned with a variety of symbols that align with the game’s fantastical theme:

  • Low-Value Symbols: Classic card suits such as hearts, diamonds, spades, and clubs, intricately designed to fit the game’s aesthetic.
  • High-Value Symbols: A collection of mythical creatures and characters, including dragons and tree people, offering higher payouts.
  • Wilds and Scatters: Essential for unlocking the game’s full potential, with wilds substituting for other symbols to form winning lines and scatters activating the pivotal free spins feature.


Monster Blox presents a thrilling high volatility slot experience, where players can achieve wins up to 7,485 times their stake. The table below illustrates the payout range for various symbol combinations:

Symbol 3 of a Kind 6 of a Kind
Low-Value Symbols $0.10 $1.00
High-Value Symbols $0.50 $10.00
Wilds/Scatters N/A Trigger Features


Starting with 40 paylines, the innovative expanding grid feature allows the game to offer up to 100 paylines on a 6×8 grid. This unique aspect of Monster Blox ensures that players have ample opportunities to form winning combinations, making each spin a potential avenue to significant rewards.

Pros & Cons

Pros Cons
Engaging Gigablox mechanism enhances gameplay High volatility may not suit all players
Expanding reels and paylines offer dynamic play Limited betting range could deter high rollers
Unique 3D visual presentation and thematic depth Winning big requires patience due to game variance

Minimum and Maximum Bet

The betting range in Monster Blox caters to a wide variety of players, with the minimum bet set at $0.20 and the maximum reaching up to $100 per spin. This range allows both casual players and those looking to make larger wagers to enjoy the game comfortably within their betting preferences.

Game Jackpot

Monster Blox offers a maximum win potential of up to 7,485 times the player’s stake, making it an enticing prospect for those chasing big wins. The game operates with a Return to Player (RTP) rate of 96.10% and features high volatility. This combination means players can expect sizeable payouts, albeit less frequently, which aligns with the game’s high-risk, high-reward nature.

About Provider

Peter and Sons is a visually stylish Armenian game development studio known for its quirky and distinctive 3D visual presentations. The company has carved out a niche in the competitive online slot market by producing games that are not only visually appealing but also innovative in their mechanics and gameplay. Their partnership with Yggdrasil to use the Gigablox mechanic in Monster Blox showcases their commitment to delivering high-quality, engaging gaming experiences.

How To Play

  • Start by setting your bet size, adjusting the value to suit your budget and risk preference.
  • Press the spin button to start the game. The reels will spin and then come to a stop, displaying the outcome.
  • Wins are awarded for matching symbols on paylines, with special features such as Gigablox and expanding reels increasing winning chances.
  • Look out for scatter symbols to trigger free spins and the wizard character who can zap symbols into wilds, further enhancing your potential for big wins.
  • Continue spinning as you enjoy the expanding grid feature and aim for consecutive wins to maximize the reels and paylines.
  • Manage your bankroll carefully, considering the high volatility of the game, and set limits to ensure a responsible and enjoyable gaming experience.


Monster Blox emerges as a standout title in the crowded slot game market, thanks to its innovative Gigablox mechanism, expanding reels, and visually captivating 3D presentation. The game’s high volatility and significant maximum win potential appeal to players seeking thrilling gameplay and the chance at substantial rewards. Peter and Sons have demonstrated their prowess in game development through this engaging slot, making Monster Blox a must-try for enthusiasts of fantasy-themed slots and innovative game mechanics.