Nitropolis 4

Nitropolis 4 Slot Review: A Thrilling Adventure with Modifiers and Big Wins

ELK Studios has done it again with Nitropolis 4, a slot machine that takes you on an unforgettable journey through the world of high-octane racing. With its unique grid structure, exciting modifiers, and generous payouts, this game is sure to thrill even the most experienced players.

Grid Structure and Modifiers

The game features a grid that expands up to 8 rows in height, providing more opportunities for wins. The Nitro Appear feature randomly places a Nitro Reel of varying size on the grid, while the Nitro Wild feature fills an existing Nitro Reel with wilds. If no Nitro Reel is present, this feature will be retained until one appears or the game round completes.

The Nitro Upgrade feature boosts the value of a Nitro Reel already on the grid, and if no Nitro Reel is present, it will be retained until one appears or the round ends. The Nitro Match feature matches a present Nitro Reel with a symbol to create a win, and if that's not possible, it will match with an adjacent Nitro Reel or the most valuable adjacent symbol.

Bonus Round

Triggering the bonus round requires 3, 4, 5, or 6 bonus scatters in view in the same Avalanche sequence. This awards 8, 12, 16, or 20 free spins, respectively. The bonus round comes with Nitro Reels frozen in place, and each win raises the safety level by one row. The next drop fills the grid with symbols up to the achieved safety level.

X-iter Feature Buy Menu

Nitropolis 4 offers an X-iter feature buy menu that allows players to purchase specific features or rounds. Options include Bonus Hunt, which costs 2x the regular stake and increases bonus round chances; Nitro Booster, which costs 10x the stake and guarantees two Nitro Booster modifiers; Super Spin, which costs 25x the stake and provides a spin with Max Rows and Both Ways active; Bonus, which costs 100x the stake and guarantees a bonus round trigger; and Super Bonus, which costs 500x the stake and triggers the Super Bonus Round.

200 Spins Experience

In our experience, we maxed out the grid in the base game before purchasing the Super Bonus Round. The triggering spin took some time to complete, but the feature didn't really start until around the 2-minute mark. We enjoyed plenty of modifier action throughout the remaining playtime.

Pros and Cons

• Avalanche wins add rows up to 8 in total
• Regular and Big Nitro Reels with larger symbols
• Multiplying Nitro Multipliers up to x12 per symbol
• 8 different Nitro Modifiers with 2 displays
• Free Spins with sticky Nitro Reels (and safety levels)
• Super Free Spins with persistent Max Rows and Both Ways
• Win up to 50,000x your stake

1. 94% RTP is a dealbreaker for some players

In conclusion, Nitropolis 4 is an exciting slot machine that offers plenty of opportunities for big wins. While the 94% RTP may be a drawback for some, the game's unique features and modifiers make it worth playing. If you're looking for a thrilling adventure with the potential for massive payouts, Nitropolis 4 is definitely worth checking out.