It is is simple and flexible enough to be played almost anywhere by anybody - and it's no surprise it is the number one urban team sport in the world.
All you need is a hoop, a half-court and six players. It's basketball in one of its most basic forms, and getting involved couldn't be easier.
The game will be one of the main attractions at the 2022 Commonwealth Games in Birmingham with Team England targeting medals - but everyone can play.
Let Team England 3x3 player Jamell Anderson run you through some of the need-to-know details.