Nitropolis 4

Nitropolis 4 Online Slot Review

Nitropolis 4 is the fourth version of the famous Nitropolis slot from Elk Studios. This series tells us about the adventures of Doberman, Pug, Sphinx, and Rat. They face various tasks in constantly searching for treasures. Spin the slot to help the gang and earn a lot of crypto!

The slot has a 4x6 playing field with 4096 winning ways. All combinations are formed with 3-6 symbols from left to right. You can also notice large symbols (2x2 or 3x3), which help to build fantastic combinations. Nitropolis 4 has a Cascade (Avalanche) mechanic, which removes winning symbols from the field and adds new ones. Each cascade can increase the playing field to 8x4. If you place the maximum bet ($50), then the payouts for each symbol in a combination (3, 4, 5, and 6 in a row) will be as follows:

• Doberman – $ 75, $ 100, $ 125, $ 150; 
• Sphinx — $50, $62.50, $75, $100;
• Pug – $37.50, $50, $62.50, $75;
• Rat – $25, $37.50, $50, $62.50;
• Red Dirty Dawgs Logo – $10, $15, $25, $50;
• Crimson Gritty Kitty Logo – $10, $15, $25, $50;
• Green Pug Thugs Logo – $7.50, $12.50, $20, $40;
• Blue Rogue Rats Logo – $7.50, $12.50, $20, $40;
• A, K, Q, J – $5, $7.50, $10, $15.

The Mine is a Wild symbol that substitutes for any other item (except Bonus). If 3-6 Mines lands from left to right, you will get $75-$150. The Submarine is a Scatter symbol that triggers the Bonus round. The Submarine with the "Super Bonus" inscription also activates the Bonus round but in a super mode.

Nitro Reels & Nitro Booster

During the game, you may notice the Nitro Reel. It occupies two cells and can display any random symbol. The Nitro Reel can also contain an x4, x6, x8, x10, or x12 multiplier. They are applied to all combinations for a payout in the current round. After the Nitro Multiplier appears, the number of ways to win is reduced to 4096.

The Nitro Booster determines random bonuses and displays them on the screen above the playing field. You can get 8 different Nitro Booster types:

• Redrop repeats the drop of symbols after Cascade moves. It keeps only Bonus symbols, Wilds, and Nitro Reels on the rows. You can activate only one Redrop per round.
• The Both Ways pays for a combination from both sides. It remains active during Cascade moves.
• Max Rows expands the playing field to 8x6.
• Garbage Collect removes low-paying symbols of one type.
• Nitro Appear adds a Nitro Reel of any size.
• Nitro Wild fills one random Nitro Reel with Wild symbols.
• Nitro Upgrade increases Nitro Reels with additional symbols or multipliers.
• Nitro Match selects a Nitro Reel and matches it with another symbol to create winning combinations.

Bonus Round & X-iter in Nitropolis 4

If you hit 3, 4, 5, or 6 Scatter symbols, the slot triggers the appearance of 8, 12, 16, or 20 Free Spins, respectively. The added rows after Cascade moves are saved until the end of the round. If Scatter symbols contain at least one “Super Bonus” mark, Free Spins are activated with Both Ways and Max Rows features.

Moreover, you can buy the Bonus round instantly in the X-iter shop. The cost depends on your bet and is calculated as follows:

• x2 Bet – Bonus Hunt mode, which doubles the Bonus round chances.
• x10 Bet – two random Nitro Boosters.
• x25 Bet – Super Spin with Both Ways and Max Rows features.
• x100 Bet – regular Bonus round.
• x500 Bet – Super Bonus round.

Nitropolis 4 Slot FAQ

1. How to determine the RTP and volatility of Nitropolis 4?
   The slot has 94% RTP and high volatility. 
2. What multiplier is the highest in Nitropolis 4?
   The highest multiplier in the slot is 50000x.
3. What’s the minimum bet in the game?
   The minimum bet in Nitropolis 4 is $0.20.