Meet some gangs of animals in the futuristic Nitropolis slot. . Look out for Nitro Booster modifiers and Nitro Reels. I noticed this on the nitropolis slots more than any of the others they've released. Nitropolis 3 merges some of the Elk's finest features like expanding reels, special symbols, and their favourite X-iter betting options which are getting. ELK Studios presents Battle of Nitropolis · Battle of Nitropolis releases · Colorado smashes monthly betting handle as $m wagered in December. It has innovative features that can create 85 million ways to win. First time betting above 5 dollars · r/gambling - First. Prepare for the apocalypse by playing Nitropolis 4, a futuristic-themed game with over 4, ways to win. Read on and play the game for free! Nitropolis is an exciting high-volatility online slot ⭐ Play Nitropolis for free ⭐ All Nitropolis games reviewed by casino experts ⭐. The Nitropolis Slot Machine from ELK Studios is a unique game which features over ways to win. The Nitropolis city that rose from the ashes after a 8 gigaton atomic bomb, launched by the tiny cold nation of Sweden that catastrophically wiped out humanity.