Playing GTA 4 online requires activating the in-game cell phone, navigating to the cell phone's menu and selecting the multiplayer option. From the multiplayer menu, a number of cooperative and competitive online game modes are available.
There are three main types of game modes in GTA 4 online: player match, ranked match and party mode. Player matches allow up to 16 different players to participate in either cooperative or competitive games purely for fun. Ranked matches are similar to player matches, but players are awarded in-game money for winning. The more money a player receives in ranked matches, the higher his rank rises. Party mode is an invite-only multiplayer variant of the main single-player game mode with no objectives, rankings or police.