Massively multiplayer online games (MMOs) are online video games that allow thousands of players to interact and play together in a virtual world. Players create characters and can explore vast environments, complete quests, and engage in battles with other players or computer-controlled characters. MMOs often feature persistent worlds, meaning the game continues to evolve even when a player is offline. These games typically include social elements, such as guilds or clans, where players can team up and communicate. Popular examples of MMOs include World of Warcraft, Final Fantasy XIV, and Guild Wars 2. Players often invest significant time in developing their characters and participating in community events.