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Dr. Cranko's Lab

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Play Dr. Cranko's Lab slot by SpinOn for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

Only 0.01% of slots combine Multi Level Bonus and Substitution Symbols.

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SlotRanker Score
66
/ 99
66
05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

How this score is built
RTP
94%
return to player
Volatility
Medium/High
variance
Max win
7,500×
top multiplier
Min bet
$0.20
per spin
Reels
5
20 lines
Player rating
3.6 ★
4 votes
DEMO Play free, no signup
SpinOn
Dr. Cranko's Lab
3.6 / 5
4 ratings
Sign in to rate this slot and earn points.

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 & RTP6/10RTP 94% → 6.0/10Volatility9/10high → 9.0/10Win Potential7.8/10x7500.00 (7500×) →…Features10/1017 features →…Game Mechanics6.3/10f=17 r=5 p=20 →…
Payouts & RTP6/10
RTP 94% → 6.0/10
Volatility9/10
high → 9.0/10
Win Potential7.8/10
x7500.00 (7500×) → 7.8/10
Features10/10
17 features → 10.0/10
Game Mechanics6.3/10
f=17 r=5 p=20 → 6.3/10
Context signals (tie-breakers)
Layout6/10
5x3 → 6.0/10
Bet Flexibility6/10
0.2–65 (×325) → 6.0/10
Provider Reputation6.4/10
provider avg 6.4 → 6.4/10
Popularity2.5/10
synthetic proxy → 2.5/10

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: 66 — Dr. Cranko's Lab by SpinOn

https://slotranker.com/spinon/dr-crankos-lab#score
How to cite
Spec sheet
Dr. Cranko's Lab at a glance.
Identity
Slot nameDr. Cranko's Lab
StudioSpinOn
Released2/25/2026
Math
SlotRanker Score66
RTP94%
VolatilityMedium/High
Max win7,500×
Bet range$0.20 – $65.00
Player rating3.6 / 5 · 4 votes
Format
Reels5
Paylines20
Layout5x3

True Cost to Play

Expected average based on this slot's 94% RTP — individual sessions vary with volatility.

Cost per hour$4.80
Cost per session$4.80

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 Dr. Cranko's Lab? 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: Medium-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 (Medium-High). The model is calibrated so the average return equals this slot's published RTP (94.00%), with wins capped at its top multiplier (7,500×).

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.

Compare Dr. Cranko's Lab with other games

Dr. Cranko's Lab
Dr. Cranko's Lab
Score 66This game
Professor LightningProfessor Lightning
Score 84
Alive MegawaysAlive Megaways
Score 83
Magic LabMagic Lab
Score 80
Fury of Hyde MegawaysFury of Hyde Megaways
Score 79
Identity
Studio
SpinOn
Massive Studios
Skywind Group
NetEnt
Jelly
Released2/25/2026—8/16/20213/21/20242/8/2023
Math
RTP94%96.53%96.47%96.06%96%
VolatilityMedium/HighHigh volatilityHigh volatilityMedium/HighHigh volatility
Max win7,500×20,000×10,000×5,999×10,000×
Format
Reels55656
Layout5x35x36x75x46x7
Paylines20—200704Pay Anywhere117649
Min bet0.200.100.200.100.20
Max bet65.0035.0020.0010.0020.00
Features
Progressive—————
Wild symbol✓✓✓✓✓
Free spins✓✓✓✓✓
Scatter symbol✓✓✓✓✓
Multiplier✓✓✓✓✓
Bonus game—————
Respins—————

Every number is shown as a delta against Dr. Cranko's Lab.

Dr. Cranko's Lab
Comparing against
Dr. Cranko's Lab
SpinOn
RTP
94%
Max win
7,500×
Score
66
Professor Lightning
Professor Lightning
Massive Studios
RTP
96.53%▲+2.5
Volatility
High volatility
Max win
20,000×▲+12,500
Score
84▲+18
Same feature set
Alive Megaways
Alive Megaways
Skywind Group
RTP
96.47%▲+2.5
Volatility
High volatility
Max win
10,000×▲+2,500
Score
83▲+17
Same feature set
Magic Lab
Magic Lab
NetEnt
RTP
96.06%▲+2.1
Volatility
Medium/High
Max win
5,999×▼−1,501
Score
80▲+14
Same feature set
Fury of Hyde Megaways
Fury of Hyde Megaways
Jelly
RTP
96%▲+2
Volatility
High volatility
Max win
10,000×▲+2,500
Score
79▲+13
Same feature set

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