Nitropolis 3 vs Pirots 2: ELK Studios Feature Slots Compared

ELK Studios is known for creating innovative slot mechanics, and both Nitropolis 3 and Pirots 2 showcase the developer's creative approach. While both games feature expanding gameplay, bonus rounds and high-volatility action, they achieve this through very different mechanics.

Players browsing modern online slots will find that Nitropolis 3 focuses on Nitro Reels and cascading gameplay, whereas Pirots 2 centres around the CollectR™ system and symbol collection.

Available through Slingo, both titles are games of chance, with every spin determined independently by a random number generator.

Quick Comparison

Feature	Nitropolis 3	Pirots 2
Developer	ELK Studios	ELK Studios
Theme	Post-apocalyptic beach	Cartoon pirate birds
Grid	6 reels with expanding rows	6×6 expanding grid
Core Mechanic	Nitro Reels	CollectR™
Cascades	Avalanche Wins	Symbol collection and feature activations
Grid Expansion	Yes	Yes
Super Bonus	Yes	Yes
Volatility	High	High

Theme and Presentation

Although both games feature colourful comic-style artwork, they create very different atmospheres.

Nitropolis 3

Players enter a toxic beach wasteland inhabited by rival animal gangs, oversized vehicles and comic-book-inspired scenery. The visuals are energetic and packed with animated effects.

Pirots 2

Pirots 2 follows a group of adventurous pirate birds searching for treasure. Bright colours, humorous animations and playful character designs give the game a lighter tone.

Both titles feature polished animations, but their settings appeal to different tastes.

Core Gameplay Mechanics

The biggest difference between the two games lies in how winning opportunities are created.

Nitropolis 3

Nitropolis 3 revolves around:

• Nitro Reels
• Avalanche Wins
• Expanding Rows
• Big Symbols
• Ways to Win

Winning combinations trigger cascading symbols, allowing spins to continue while the grid gradually expands.

Pirots 2

Pirots 2 is built around:

• CollectR
• Collectible amber symbols
• Feature meters
• Symbol upgrades
• Grid expansion

Instead of cascades, players watch the coloured birds collect matching symbols across the grid to activate new features.

Nitro Reels vs CollectR

These mechanics define each game.

Nitro Reels

Nitro Reels contain multiple identical symbols within a single reel position.

Throughout gameplay they may:

• Upgrade
• Become Wilds
• Match neighbouring symbols
• Increase Ways to Win

Nitro Reels are central to every spin in Nitropolis 3.

CollectR

CollectR™ works very differently.

The coloured birds move across the grid collecting symbols that match their colour.

Collected symbols:

• Fill feature meters
• Upgrade in value
• Unlock special features
• Progress towards bonus rounds

This creates a gameplay loop focused on collecting rather than cascading.

Expanding Play Areas

Both games expand the playing field, but they do so in different ways.

Nitropolis 3

Every successful Avalanche adds another row until the layout reaches eight rows.

This increases:

• Ways to Win
• Space for Nitro Reels
• Opportunities for Big Symbols

Pirots 2

Pirots 2 expands the playable grid through its own feature system, creating additional positions for symbol collection and feature activations rather than adding rows after every winning sequence.

Bonus Features

Both titles include feature-rich bonus rounds.

Nitropolis 3

Players can encounter:

• Free Spins
• Sticky Nitro Reels
• Both Ways
• Nitro Match
• Nitro Upgrade
• Nitro Wild
• Super Bonus

Many of these mechanics can combine during a single feature.

Pirots 2

Bonus gameplay focuses on:

• Persistent feature progress
• CollectR mechanics
• Symbol upgrades
• Feature symbols
• Sticky progression
• Super Bonus

The progress made during the bonus continues to build as the feature unfolds, rewarding long bonus sequences.

Feature Variety

Nitropolis 3 emphasises interactions between multiple reel modifiers.

Common features include:

• Avalanche Wins
• Big Symbols
• Expanding Rows
• Nitro Reels
• Both Ways
• Redrop
• Wild transformations

Pirots 2 instead focuses on feature progression through collection mechanics.

Its gameplay includes:

• Feature meters
• Amber symbol upgrades
• Feature chests
• Symbol transformations
• Coin prizes
• Popcorn features

Both games deliver evolving gameplay but through completely different systems.

Gameplay Pace

The two slots also feel different while playing.

Nitropolis 3

Gameplay moves quickly.

Avalanches happen rapidly, rows expand during successful spins and Nitro Reels frequently change.

The action rarely pauses for long.

Pirots 2

Pirots 2 has a more gradual rhythm.

Players follow the birds as they collect symbols, upgrade features and unlock additional mechanics over time.

The sense of progression is one of the game's defining characteristics.

Which Game Offers More Variety?

Both games include numerous features, but they present variety differently.

Nitropolis 3 focuses on:

• Constant reel changes
• Cascading combinations
• Expanding layouts
• Multiple feature interactions

Pirots 2 focuses on:

• Progressive collection
• Upgrading symbols
• Persistent feature meters
• Strategic feature development during bonus rounds

Neither approach is inherently better—they simply provide different styles of gameplay.

Which ELK Slot Should You Choose?

Your preference depends on the type of gameplay you enjoy.

Choose Nitropolis 3 if you prefer:

• Cascading reels
• Expanding rows
• Nitro Reels
• Fast-moving gameplay
• Frequent feature interactions

Choose Pirots 2 if you prefer:

• Collection mechanics
• Expanding grids
• Character-driven gameplay
• Progressive bonus features
• Symbol upgrades

Both games highlight ELK Studios' creativity while offering distinct gameplay experiences.

Conclusion

Nitropolis 3 and Pirots 2 demonstrate two different approaches to feature-rich slot design. Nitropolis 3 delivers fast-paced action through Avalanche Wins, Nitro Reels and expanding rows, while Pirots 2 builds excitement through the CollectR™ mechanic, feature progression and evolving bonus rounds.

For players exploring innovative online slots, both titles showcase ELK Studios' distinctive style, with each offering its own take on expanding gameplay and layered features.

Frequently Asked Questions

Which game uses Nitro Reels?

Nitropolis 3 features Nitro Reels as its signature gameplay mechanic.

What is CollectR?

CollectR is the core mechanic in Pirots 2, where coloured birds collect matching symbols to activate features and fill progression meters.

Do both games have expanding play areas?

Yes. Nitropolis 3 expands by adding rows during Avalanche sequences, while Pirots 2 expands its grid through feature mechanics.

Which game includes Avalanche Wins?

Avalanche Wins are a feature of Nitropolis 3 and are not used in Pirots 2.

Do both games have Super Bonus rounds?

Yes. Both titles include enhanced bonus rounds with additional mechanics beyond the standard feature.

Are Nitropolis 3 and Pirots 2 games of chance?

Yes. Both games use random outcomes, and each spin is independent of previous results.