Nitropolis 4 – Play for 100% Free in Demo Modeby ELK Studios

Nitropolis 4 review

Theme and Style

Players will once more find themselves in a Nitropolis, a post-apocalyptic world ruled by dogs.

This time, the setting is a desolate oil rig in the middle of the ocean. Days are hard and the metal rigging surrounds the pups like a cage, but if they get lucky, they might just score some black gold.

This slot will appeal to fans of the established Nitropolis franchise.

Visuals and Soundtrack

The techno-infused soundtrack has an undeniable cool factor. The raw, digital notes fit well with this slot’s dystopian future setting. Occasionally, a DJ’s voice croaks over the radio and the dogs bark in response.

The reels are built into the steel structure of the oil rig, with a murky ocean visible in the distance. The sky is hazy, only letting a few orange-tinged rays of sunlight through. This adds to the feeling that this version of Earth has suffered some sort of catastrophe.

The symbols include spray-painted letters, ominous signs, and green liquids. Each of these images fits right in with this slot’s gritty aesthetic.

A dangerous-looking rottweiler, a calculating cat, a somewhat silly pug, and a large-eared rat are all among the characters that make up the cast of symbols. Each of these animals is animated in a vivid cartoon style that may remind some players of graphic novel illustrations.

Together, the soundtrack and animation of Nitropolis 4 create a unique vision of a dystopia.

Gameplay and Key Statistics

The base structure of Nitropolis 4 is 4-4-4-4-4-4, but this can expand by one row for each consecutive win. The maximum expansion allows for a six-reel, eight-row reel structure.

Players are awarded wins in Nitropolis 4 for landing matching symbols in adjacent reels. Winning combinations are assessed from left to right.

Nitropolis 4 offers a return to player of 94.00%, well below average for the industry.

The range of bets provided by this game ran from a minimum bet per spin of $/£/€0.20 up to a maximum of $/£/€50.00 per spin.

Nitropolis 4’s high volatility means that this slot will award less frequent, but higher payouts on average.

Bonus Gameplay and Special Features

Super symbols have a larger size of 2x2 and may appear randomly during any spin. Mega symbols are extra large symbols with a 3x3 size that also may appear at random during any spin.

Special reels called Nitro reels hold between 4 and 12 symbols and cover 2 symbol positions. Meanwhile, Big Nitro reels contain between 2 and 6 large (2x2) symbols, and cover 6 symbol positions.

Covering 2 symbol positions, Nitro multipliers have the ability to multiply all available wins.

With the exception of the Bonus symbol and the Super Bonus symbol, the Wild symbol substitutes for all symbols.

A range of special features can be triggered by the Nitro Booster such as:

• Nitro Wild feature: Wilds will fill a Nitro reel that is already in place.
• Redrop feature: Every Nitro Multiplier, Nitro reel, Wild symbol, and Bonus symbol will be sticky on the reels as the remaining positions respin.
• Max Rows feature: the reels will expand to become 8 rows high.
• Nitro Matcha feature: one of the symbols already visible will fill a whole Nitro reel.
• Garbage Collect feature: a symbol type will be selected at random and removed from the reels.
• Both Ways feature: winning combinations will pay from right to left and left to right.

The Free Spins feature begins when players land 3 or more Bonus symbols. If a greater number of Bonus symbols trigger the feature, a greater number of free spins are awarded. This ranges from 8 free spins (for 3 triggering Bonus symbols), to 20 free spins (for 6 triggering Bonus symbols).

Every Nitro reel remains sticky throughout the Free Spins feature, with the safety level progressing by 1 row for every win achieved.

Players may retrigger the Free Spins feature. The Super Bonus Game begins if players land a combination of Bonus symbols and Super Bonus symbols. This version of the Bonus includes additional special features, including Max rows and Both Ways.

Conclusion

We don’t recommend this low RTP (94.00%), high volatility canine dystopia-themed slot.

The incredibly detailed animation and creative canine narrative give Nitropolis 4 a lot of flair. Unfortunately, this slot’s RTP is simply too low to merit a recommendation.

The incredible range of Bonus features may draw in some players, but overall, seeking a slot with a more promising RTP would be preferable.