Two of the most popular online role playing games as of 2015 are "World of Warcraft" and "Guild Wars 2." "World of Warcraft" is a subscription-based massively multiplayer online game that charges a fee to play while "Guild Wars 2" only requires players to purchase the game to play online.
Players in "World of Warcraft" join one of two warring factions, the Horde or the Alliance. Players are able to fight monsters or other players and to select different professions ranging from skinning and mining to archaeology and herbalisim. "Guild Wars 2" is similar, but it also contains dynamic events. These events occur randomly as players quest and can include situations such as having to save villages or defeat monsters. How all the players around the event respond has an impact on the game world.