There are many types of game you can play in online poker, with different variants of some key game types available to play and master over time at the different online poker rooms.
The most popular online poker game is the classic Texas 'Holdem game where each player can use any combination of the five 'community' cards, in addition to there own two dealt cards. Texas Holdem in it's no-limit form was also popularised by the movie "Rounders' from 1998 starring Matta Damon and Edward Norton. Another simmilar variant is 'Omaha Hold'Em'.
Prior to the Hold'Em game's rise, Stud Poker was previously the most popular and it still remains a favourite. Stud Poker differs by dealing each player there own full hand with a combination of face up and hidden cards. The variants of Stud Poker are '5-card stud' and '7-card stud'.
Other game types include, 'Heads Up Poker' which involves only two-players playing head-to-head, 'Horse' (or 'Stud Horse') and even Speed Poker which is a variant of Texas Hold'Em but played against the clock with only 15 seconds for each player to make their next move.