"Red vs. Blue" is a popular web series created by Rooster Teeth that began in 2003. It is a comedic take on the Halo video game franchise, featuring two teams, the Red Team and the Blue Team, who engage in humorous battles and absurd situations in a virtual world. The series is known for its unique blend of action, comedy, and character-driven storytelling. The show has gained a significant following and has expanded into various seasons, spin-offs, and merchandise. It has also influenced the online gaming community and inspired other web series, showcasing the potential of user-generated content in the digital age.