There are two types of bingo played around the world. North America plays 75-ball bingo on a 5x5 card with the centre square usually marked 'free'. In the UK, parts of Europe, Australia and parts of South America they play a 90-ball game, marked on a 9x3 card. Both types of bingo are prominent online.

The desired pattern which players aim to achieve in 75 ball can vary dramatically, from a simple single line to more complicated themed patterns. The aim of the game, however, is always the same: to mark off the numbers to achieve the desired pattern. Speed Bingo is a variation played exactly the same, but numbers are simply called much quicker.

In 90-ball bingo, each card has three horizontal lines and nine columns. Each line contains five numbers, meaning each card has 15 numbers. The first column contains numbers from 1-9, the second column contains numbers from 10-19, the third column contains numbers from 20-29, all the way through to the final column which contains numbers from 80-90.

A game of 90 ball bingo will normally be played in three stages: one line, two lines and Full House. In a "one line" game players need to mark a complete horizontal line across one card (i.e., 5 numbers marked). The aim of a 'two lines' game is to complete any two marked lines horizontally across one card (i.e., 10 numbers marked).

 Finally a "Full House" means all the numbers marked off on one card (all 15 numbers), as in a regular coverall game. The prize split differs for each stage of the game. The prize will be shared equally among the winners if there is more than one. The Full House is always the largest prize in any one game.

There are a number of sites that will have the same promotions, similar graphics, the same bingo rooms and the same CMs. This occurs because they are part of a bingo "network". In simple terms, this means a number of different sites (or "front ends") are playing with the same numbers for the same jackpot (i.e., the same back end). Multiple sites act as doorways to a single game, leading to larger pools of players in chat rooms and more sizeable pots to win, in an arrangement known as White Label Gaming.

While the bingo software is the same, the brand owners are responsible for the look and feel of the site, together with any promotions they wish to offer.