Nitropolis 3 – Online Slot By ELK Studios

Nitropolis 3 is a cascading video slot from ELK Studios on a six-reel grid with 4,096 ways and a theoretical RTP of 95%. Nitro Reels, bonus symbols and bonus spins drive the action, and the top win is 50,000x your bet. Read on for the specs, symbols and features.

The nitro gang is back, this time on a post-apocalyptic beach. Avoid the toxic waste and nuclear debris while you sip a cocktail under the tropical umbrella. Expect single stacking symbols, large icons, Nitro Reels and bonus spins, all to a funky beat.

Nitropolis 3 Slot Specs

The RTP is a theoretical, long-run figure, so it says nothing certain about any single session. For more on how this works, read our explainer on slot variance or what RTP means.

Theme, Graphics and Sound

The game opens with a short cinematic. The gang are rough and tough animals, slightly altered by radiation. At first the scene looks inviting, with a cocktail on a little table by the umbrella, until you notice the barrels oozing glowing green goop, the destroyed buildings and the blue haze over everything.

The soundtrack is funky and upbeat, with some of the gang’s barks and squeaks remixed in. You can mute the audio at any time. The sound effects keep you informed, especially during the anticipation spins. The game stays true to the original entries, and the whacky setting and cast make it a joy to play.

Nitropolis 3 Symbols and Paytable

Symbols can land as 1×1, 2×2, 3×3 or 4×4.

• Low-paying: J, Q, K and A playing card royals, all worth the same.
• Medium-paying: animal patches for the Rogue Rats, Pug Thugs, Gritty Kitty and Dirty Dawgs. Gritty Kitty and Dirty Dawgs pay the most of these.
• High-paying: the rat, pug, cat and doberman. The doberman is the most valuable.
• Wild: the toxic martini substitutes for any other common icon.
• Scatter: the blimp. Landing at least three activates the bonus spins.

How Cascades and Nitro Reels Work

Nitropolis 3 is a cascading slot. The grid starts with six reels and a varying number of rows. On winning spins, the symbols in the win disappear and new icons fall in. Each time this happens a row is added, up to a maximum of 8, and it continues as long as new wins form.

Nitro Reels can form on the grid. A Nitro Reel covers at least two symbol positions and holds 4, 6, 8, 10 or 12 1×1 paying symbols, or covers up to 6 symbol positions and holds 2, 3, 4, 5 or 6 2×2 paying symbols.

Nitro features work on a Nitro Reel on the same or an adjacent reel:

• Nitro Match: matches the symbols.
• Nitro Upgrade: upgrades the symbols and adds extra icons to the Nitro Reel.
• Nitro Wild: turns the symbols in the Nitro Reel, and this symbol, Wild.

Other bonus symbols can land too:

• Redrop: bonus and Nitro feature symbols stay on the grid while the Nitro Reels re-spin.
• Both Ways: wins pay left to right and right to left.

Bonus Spins

Landing 3, 4, 5 or 6 Scatters on a single symbol drop awards 8, 12, 16 or 20 bonus spins. All Nitro Reels are sticky during the feature and the spins can be re-triggered. With each new bonus spin the safety level rises by one, adding another row.

A combination of Scatters and Super Bonus Game symbols also triggers bonus spins. These start at the maximum 8 rows with Both Ways active.

Where to Play Nitropolis 3

These casinos we review carry ELK Studios games. Check the casino’s own page for the slot list and current offers.

• Conquer Casino (min deposit $/€/£10)
• MobileWins (min deposit $/€/£10)
• Power Slots (min deposit £/€/$10)
• Dream Palace Casino (min deposit £/€/$10)

More ELK Studios Slots

If you like this one, try Rogue Rats of Nitropoli, Pacific Gold or Wild Toro II, or see the ELK Studios provider page.

Our Verdict

Nitropolis 3 is a lively, high-volatility slot with a strong theme and plenty of features. An RTP of 95% is on the low side, so if you are hesitant to commit real money, try it in demo mode first.

18+ only. Gamble responsibly: SA Responsible Gambling Foundation counselling line 0800 006 008 (24/7).

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