ELK Studios

Nitropolis 2

Slots Video Slots Futuristic Animals Mafia Apocalypse

An animal-gang sequel driven by an overhead modifier reel

Filter our catalog for Transforming Symbols and 76 games come back — Nitropolis 2 is one of them.

SlotRanker Score

/ 99

05099

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

How this score is built

RTP

95%

return to player

Volatility

Medium volatility

variance

Max win

10,000×

top multiplier

Min bet

$0.10

per spin

Reels

191102967 lines

Player rating

4.5 ★

19 votes

DEMO Play free, no signup

ELK Studios

Embed on your site

4.5 / 5

19 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

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

Payouts & RTP8/10

RTP 95% → 8.0/10

Volatility8/10

medium → 8.0/10

Win Potential8/10

x10000.00 (10000×) → 8.0/10

Features10/10

19 features → 10.0/10

Game Mechanics6.1/10

f=19 r=6 p=n/a → 6.1/10

Context signals (tie-breakers)

Layout5/10

6x4 → 5.0/10

Bet Flexibility6/10

0.1–100 (×1000) → 6.0/10

Provider Reputation7.1/10

provider avg 7.1 → 7.1/10

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: 70 — Nitropolis 2 by ELK Studios

https://slotranker.com/elk-studios/nitropolis-2#score

How to cite

Slot Summary

A reel bank with its own overhead modifier strip makes Nitropolis 2 a game of interacting parts. ELK Studios continues the city's animal-gang conflict while the Nitro Booster changes what the smaller Nitro Reels can do. The sequel's identity comes from that relationship: the extra reel actively reshapes the action beneath it.

How It Plays

A Nitro Reel occupies two symbol positions but contains four, six, eight, ten or twelve paying symbols. These smaller reels change how many symbols can participate in the main result.

The modifier strip can upgrade a Nitro Reel's symbol count or alter its contents. Other modifiers affect the main reels, adding another respin or allowing wins to pay in both directions.

Theme & Atmosphere

Sergeant Nitro Wolf is trying to regain control of the city after imprisoning the Rogue Rats. That conflict gives the animal cast opposing roles rather than treating them as interchangeable mascots.

The setting presents a futuristic city under pressure from its gangs. Its urban conflict continues the Nitropolis series, while the police pursuit provides the specific story for this installment.

Futuristic Animals Mafia Apocalypse

Features & Win Potential

Symbol-changing modifiers have distinct jobs. All Premium fills Nitro Reels with higher-value symbols, while All Match aligns their contents with a symbol on the reel to the left.

The Both Ways modifier remains active through the ongoing win and respin sequence. Its duration makes the next result part of the same modified sequence until those attempts finish.

Free Spins 6 Reels Scatter Symbol Wild Symbol Respins Medium volatility Expanding Wilds Reel Modifiers Transforming Symbols Pay Both Ways Stacked Symbols Expanding Reels Sticky Wilds Scatter Pays Bonus Buy Symbol Swap RTP range Bonus symbols Splitting Symbols

Bonus & Free Spins

Three or more bonus symbols trigger free spins. Nitro Reels lock in position for the remaining round, giving subsequent modifiers retained targets to act upon; additional triggers can extend the feature.

Spec sheet

Nitropolis 2 at a glance.

Identity

Slot nameNitropolis 2

StudioELK Studios

Released4/21/2021

Math

SlotRanker Score70

RTP95%

VolatilityMedium volatility

Max win10,000×

Bet range$0.10 – $100.00

Player rating4.5 / 5 · 19 votes

Format

Reels6

Paylines191102967

Layout6x4

Expected average based on this slot's 95% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.00

Cost per session$2.00

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

How long could a bankroll last on Nitropolis 2? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: Medium

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). The model is calibrated so the average return equals this slot's published RTP (95.00%), with wins capped at its top multiplier (10,000×).

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 Nitropolis 2

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Compare Nitropolis 2 with other games

	Nitropolis 2 Score 70This game	Slayers Inc Score 84	Cash Legion Score 78	Canine Carnage Score 62	Age of Apes Score 46
Identity
Studio	ELK Studios	Hacksaw Gaming	Mancala Gaming	Play'n Go	World Match
Released	4/21/2021	5/13/2024	—	11/3/2022	5/27/2024
Math
RTP	95%	96.28%	95%	94.2%	94.87%
Volatility	Medium volatility	High volatility	High volatility	Medium volatility	Low volatility
Max win	10,000×	15,000×	20,000×	3,000×	—
Format
Reels	6	5	5	5	5
Layout	6x4	5x4	5x3	5x3	5x3
Paylines	191102967	14	40	248832	10
Min bet	0.1	0.1	0.4	0.1	0.1
Max bet	100	100	360	100	20
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	—	✓	—
Bonus game	—	—	—	—	—
Respins	✓	—	✓	—	—

Every number is shown as a delta against Nitropolis 2.

Comparing against

Nitropolis 2

ELK Studios

RTP

95%

Max win

10,000×

Score

+ Multiplier− Respins

+ Multiplier− Respins

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01What is the difference between green and gold Nitro Boosters?

Green boosters affect Nitro Reels in their own column. Gold boosters apply their effect across all Nitro Reels.

02Do winning symbols stay fixed during respins?

No. Symbols and Nitro Reels involved in a win respin individually, and the sequence continues while new winning combinations appear.

03What RTP does Nitropolis 2 use?

The supplied configuration has 95% RTP. The published Italian game rules also specify a theoretical return of 95.0%.

Series

Nitropolis

View all 6 games

Game	Year	RTP	Volatility	Slot Score
NitropolisELK Studios	2020	96.1%	High volatility	75
Nitropolis 2CurrentELK Studios	2021	95%	Medium volatility	70
Nitropolis 3ELK Studios	2022	95%	High volatility	83
Nitropolis 4ELK Studios	2023	94%	High volatility	76
Nitropolis 5ELK Studios	2024	94%	High volatility	77
Nitropolis TVLatestELK Studios	2025	94%	High volatility	72