What is an ARG and what have been the most popular 5 ARGs so far? Additionally, tell me the reasons why ARGs interest people.
ARG stands for "Alternate Reality Game". These games are usually played in real-time over the internet where players are given a scenario and must find clues and solve puzzles to uncover the truth behind it.

The popularity of ARGs can be attributed to their ability to engage audiences through storytelling, interaction with other players, and a sense of mystery and adventure. Some of the most successful ARGs include The Last Of Us, My Little Pony: Friendship Is Magic, and The Sims.

One reason why ARGs interest people is that they allow participants to become part of a larger story, connect with others around the world who share similar interests, and experience new things and places. Additionally, many ARGs provide a unique challenge and reward system, making them engaging and enjoyable for players.