Nitropolis 4 Slot Demo - Free Play

The dystopian animals return in the action-packed Nitropolis 4 slot from ELK Studios. 

This latest entry in the hugely successful series plays on five reels, four rows, and offers 4,096 ways to win. It’s a high volatility game with a 94% RTP, and maximum wins can reach an impressive 50,000x your stake.

Features include cascading symbols, expanding reels, and Nitro Reels that can hold up to 12 symbols. Nitro Multipliers boost payouts by up to 12x, while Super Symbols fill 2x2 or 3x3 blocks. 

Eight random modifiers, such as win both ways, symbol upgrades, and matched reels, keep gameplay fresh and unpredictable.

The free spins bonus round is the highlight. Nitro Reels lock in place, and the reels stay expanded throughout. 

You can enjoy Nitropolis 4 free play or for real money on PC and mobile devices.

Nitropolis 4 features quirky cartoon pets, such as a pug, a cat, and a Doberman, who are now working on an oil rig. 

These characters share the reels with gang symbols such as Pug Thugs and Gritty Kitty, card symbols and a floating mine. 

The soundtrack mixes explosions, industrial effects, and electronic beats, adding to the chaotic atmosphere.

Play is seamless across Android, iOS, and Windows devices. Betting is simple, with coin values ranging from 0.20 to 50.00 per spin. 

The paytable reveals full details of features and symbol values, with the Doberman as the top-paying symbol at up to 3x your stake.

• Doberman: Top symbol, up to 3x your stake
• Mine Wild: Substitutes for others and pays like the Doberman
• Card Symbols: Low-paying symbols
• Super Symbols: 2x2 and 3x3 giant symbols
• Nitro Reels: Hold 4–12 stacked symbols
• Nitro Multipliers: Boost wins up to 12x

Nitropolis 4 Free Spins and Bonus Features

The Avalanche mechanic removes winning symbols and allows new ones to drop, with an extra row added up to 8 rows high. 

Nitro Reels and Nitro Multipliers can appear anytime, often combining for massive wins. Multiple Nitro Multipliers stack their values.

There are 8 Nitro Boosters that add random features, such as:

• Redrops: Locks bonus symbols in place
• Both Ways: Wins count left-to-right and right-to-left
• Garbage Collect: Removes random symbols
• Nitro Match: Fills two reels with the same symbol

Landing 3 to 6 Bonus symbols triggers 8 to 20 free spins. Nitro Reels stay active during free spins, and expanded reels remain locked. 

Retriggers are possible. If triggered by a Super Bonus symbol, the feature starts with eight rows and is win-both-ways enabled.

Maximum Win: 50,000x your stake (worth 2,500,000.00 at max bet).

RTP: 94.00%, lower than the 96% industry average for high-volatility slots.

Volatility: High, meaning less frequent wins but the potential for huge payouts.

The 94% RTP is a drawback, but everything else about Nitropolis 4 shines. 

Packed with features, modifiers, stacked symbols, and humor, it’s one of ELK Studios’ most entertaining releases. 

The fast-paced gameplay and massive win potential make this slot ideal for experienced players who enjoy action-heavy slots.