What Are The 3 Best Crypto Poker Sites? Some Bitcoin Poker Sites gaining steam are Ignition, BetOnline, and NitrogenSports. Let’s dive in and see how they compare.   1. Ignition Ignition is one of the most popular poker sites accepting bitcoin for US and AUS players. Since 2011, Ignition has built for itself an excellent reputation for being one of the few Bitcoin poker sites offering user security and the full regulatory compliance of a US poker room.