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ELK Studios: NITROPOLIS 4
DEMO PLAY
Nitropolis 4 is a cluster-style online casino slot released by Elk Studios on February 23, 2023, with the theme of a gang of animals surviving in a devastated world.
Nitropolis 4 has 6 reels, 4 rows, and 4,096 paylines, and can be played both ways.
Game Title
Nitropolis 4
Provider
ELK Studios
Release Date
2023/2/23
Reel Area
6-4
Betting Amount
$0.2~$100 (May vary for different casino)
RTP
94%
Multiplier
50,000x
Jackpot
none
Cat King Rating： 4 / 5
Volatility
★★★★☆
Entertaining Level
★★★★☆
Visual
★★★★☆
Excitement
★★★☆☆
Quality
★★★★☆
Symbols for NITROPOLIS 4
The highest paying symbol in Nitropolis is the Doberman.
Next are the Cat, Pug and Rat.
The lowest paying symbols are the playing card numbers A, K, Q and J.
The paytable is as follows. *Default bet amounts are shown.
・Doberman: Wins 3 on 6 paylines.
・Cat: Wins 2 on 6 paylines.
・Pug: Wins 1.5 on 6 paylines.
・Rat: Wins 1.25 on 6 paylines.
・Playing card numbers A, K, Q and J: Wins 0.3 on 6 paylines.
You need to line up 3 or more identical symbols on a payline to win a payout.
How to Play NITROPOLIS 4（Main Game）
In Nitropolis 4, when a payout is made, symbols disappear and new symbols fall from above in a cluster style.
When a payout is made, the reels expand.
When a win is made, the row will move up, and additional features may be triggered randomly from both panels above the reels.
◎Special symbols
Redrop
It leaves behind the Nitro Reel, Nitro Multiplier, Wild symbols and Bonus symbols, and replaces other symbols with new ones.
Both Ways
Symbol payouts will now occur not only from the left side of the reels, but also from the right side.
Max Rows
Maximum reel height of 8 rows.
Garbage Collect
Randomly selected symbols are removed from the reels.
Nitro reels of random size fall.
Nitro Wild
Turns the Nitro Reel content on the reels into Wilds.
Nitro Upgrade
Increases the number of Nitro Reels on the reels.
Nitro Match
Transforms symbols in Nitro Reel into any other symbol on the reels.
How to Play NITROPOLIS 4（Bonus Game）
◎Free spins bonus overview
In Nitropolis 4, if you get three or more scatter symbols, you will enter free spins mode.
The number of free spins for each scatter symbol is as follows:
- 3 scatters → 8 free spins
- 4 scatters → 12 free spins
- 5 scatters → 16 free spins
- 6 scatters → 20 free spins
During free spins, the rows move up with each successful payout, and they do not reset even after the combo ends, so the number of paylines increases all at once, making it easy to win large amounts of money with consecutive combos.
Be patient and try your best to win high dividends!
◎How to purchase bonuses
There are five types of bonus purchases.
Purchase price
・Bet x2: Double chance of bonus round
・Bet x10: Big Nitro reel guaranteed
・Bet x25: 2 special symbols guaranteed to appear
・Bet x100: Regular free spins (8 spins)
・Bet x500: Super free spins (starts with both "Max Row" which starts with the reels at their maximum height and "Both Way" which counts symbols from both sides of the payline) enabled.