T20 Rules. BBL BASICS. The primary objective of the game of cricket is to score runs and take wickets, T20 matches are played by two teams of 11 players and. T20 Cricket Rules - Format of the game, Field restrictions in T20, Decision of match in case of a tie etc. Twenty20 cricket, sometimes written Twenty, and often abbreviated to T20, is a short form of Format; General rules ; Tie deciders. 3 International. List of Twenty20 International · ICC World Twenty20 · Twenty20 International.