. To us. Play Nitropolis 3 at Betsson today! We have a huge variety of Casino games to choose from! Nitropolis 3 is a 6 reels 4 rows rabid slot. To us. To us. It comes loaded with Betsson Group has more than 60 years' experience of gambling. Play Nitropolis 3 at Betsson today! We have a huge variety of Casino games to choose from! Nitropolis 3 is a 6 reels 4 rows rabid slot. It comes loaded with Betsson Group has more than 60 years' experience of gambling. Play Nitropolis 3 at Betsson today! We have a huge variety of Casino games to choose from! Nitropolis 3 is a 6 reels 4 rows rabid slot. It comes loaded with Betsson Group has more than 60 years' experience of gambling.