The Chorus Trilogy is the fourth main saga of Red vs. Blue, spanning three seasons. Written and directed by Miles Luna (with some help by Burnie Burns), the trilogy was primarily made in Halo 4, with seasons 12 and 13 also featuring 3D animation.
In the plot, the end of Season 10 is revealed to have been the outcome of a spaceship accident that marooned the Blood Gulch Crew in a planet forgotten by the UNSC, later revealed to be named Chorus. The Reds and Blues eventually get involved in a civil war the local population is engaged in, while also discovering both parties are being manipulated by mercenaries, space pirates and a corrupt corporation.
- See main article: Red vs. Blue: Season 10.
- See main article: Red vs. Blue: Season 12.
- See main article: Red vs. Blue: Season 13.