Peter and Sons

Monster Blox

Monster-hunt Gigablox slot with respins that enlarge the field

Only 0.2% of slots feature Gigablox.

SlotRanker Score
78
/ 99
78
05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.

RTP
96.1%
return to player
Volatility
High volatility
variance
Max win
7,485×
top multiplier
Min bet
$0.20
per spin
Reels
6
40 lines
Player rating
4.9 ★
5 votes
DEMO Play free, no signup
Peter and Sons
Monster Blox
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4.9 / 5
5 ratings
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User ratings are shown separately from the Slot Score unless stated otherwise.

Why this score

High confidence (100%)

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Slot score profile across 5 weighted categoriesPayouts & RTP9/10RTP 96.1% → 9.0/10Volatility9/10high → 9.0/10Win Potential7.7/10x7485.00 (7485×) →…Features10/1019 features →…Game Mechanics7.1/10f=19 r=6 p=40 →…
Payouts & RTP9/10
RTP 96.1% → 9.0/10
Volatility9/10
high → 9.0/10
Win Potential7.7/10
x7485.00 (7485×) → 7.7/10
Features10/10
19 features → 10.0/10
Game Mechanics7.1/10
f=19 r=6 p=40 → 7.1/10
Context signals (tie-breakers)
Layout5/10
6x4 → 5.0/10
0.2–100 (×500) → 6.0/10
provider avg 7.6 → 7.6/10
synthetic proxy → 5.0/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 78 — Monster Blox by Peter and Sons

https://slotranker.com/peter-and-sons/monster-blox#score
How to cite

Slot Summary

Each winning spin can enlarge the reel field and add another respin, turning a single hit into a sequence of wider boards. Monster Blox uses that expanding Monster Respin alongside Gigablox symbols and Wild Bounty conversions. Free Spins start on the enlarged field and connect collected Scatters to a rising Monster Multiplier, giving the monster-hunt theme a mechanic that visibly changes the playing space.
MechanicsWinning respins expand rows and active paylines

How It Plays

Monster Blox begins on a 6x4 field with 40 paylines. Any winning spin triggers a Monster Respin, adds a row, and raises the active payline count.

The board can reach 6x8 with 100 paylines, so successive wins change the size of the next evaluation. Gigablox symbols occupy oversized sections of that larger space.

Theme & Atmosphere

The Monsters theme is presented as a bounty hunt, with a hunter affecting both the symbols and the Wild behavior rather than remaining a background character.

Fantasy and Magic elements support the expanding creature blocks, while the tavern-story tone gives the Dragon and other Monsters a rough folklore identity.

Features & Win Potential

Gigablox allows oversized Monster symbols to occupy large areas of the field. Their effect grows more visible as Reelset Changing adds rows after winning spins.

Random Wilds arrive through Wild Bounty, which can convert ordinary symbols and large blocks. During Respins, those substitutions apply to an already enlarged board.

Bonus & Free Spins

Five or more Scatter Symbols open Free Spins on the 6x8 field. Every additional Scatter adds another spin, so the symbol collection directly controls round length.

Collected Scatters also raise the Monster Multiplier at set thresholds. Wild Bounty appears more often in Free Spins and activates on spins without a win.

Spec sheet
Monster Blox at a glance.
Identity
Slot nameMonster Blox
Released11/22/2021
Math
SlotRanker Score78
RTP96.1%
VolatilityHigh volatility
Max win7,485×
Bet range$0.20 – $100.00
Player rating4.9 / 5 · 5 votes
Format
Reels6
Paylines40
Layout6x4

True Cost to Play

Expected average based on this slot's 96.1% RTP — individual sessions vary with volatility.

Cost per hour$3.12
Cost per session$3.12

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

Bankroll survival simulator

How long could a bankroll last on Monster Blox? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Volatility tier: High

Running simulation…
How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (High). The model is calibrated so the average return equals this slot's published RTP (96.10%), with wins capped at its top multiplier (7,485×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Where to play Monster Blox

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Identity
Studio
Released11/22/20214/23/20165/6/20153/10/20167/22/2024
Math
RTP96.1%96.06%97.18%94.54%96.1%
VolatilityHigh volatilityLow volatilityMedium volatilityMedium volatilityHigh volatility
Max win7,485×20,000×
Format
Reels65557
Layout6x45x35x35x57x7
Paylines405010100
Min bet0.20.50.10.10.1
Max bet1005001001005
Features
Progressive
Wild symbol
Free spins
Scatter symbol
Multiplier
Bonus game
Respins

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Questions & Answers

Monster Blox FAQ

4 questions

Yes. Monster Blox is rated high volatility, matching a design that concentrates several modifiers inside expanding respin and Free Spins sequences.

A winning base-game spin triggers a Monster Respin, adds another row to the field, and increases the number of active paylines.

Gigablox places oversized Monster symbols across several positions, letting one symbol formation occupy a substantial section of the expanding field.

Free Spins use the fully enlarged field, collect additional Scatters for more spins, and raise the Monster Multiplier at specified collection thresholds.

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