Quadball is a sport for four teams of three players, inspired by handball and quidditch.

It is designed as an attempt to explore the possibility for competitive team sports to involve more than two teams simultaneously. To this end, quadball involves rounds in which two games are played, each between two teams, at the same time on the same pitch.

The rules of quadball are outlined here.

Quadball was a group project for the Game Prototyping class on the Games (Technology) MSc at ITU.