This guide examines the rules of the different variations of poker games that can be found online. There are many different variations of poker games, particularly at online poker rooms and unless you are familiar with the rules of the games, it can be difficult to choose which poker game to play. This guide goes through the rules of all of the common variations of poker, such as Texas hold'em, Omaha and seven card stud, as well as examining the rules of the less common variations of poker, such as guts poker and pineapple poker. It explains how each poker game is played and variations that may exist in each case.