There two alternate outfits called "The Mad king" and "Mogar" for the characters Sir Rolland and Gnash. These costumes are a reference to characters of the same name from the Rooster Teeth animated show "X-ray and Vav".
Forza Horizon 3[]
A Forzathon achievement entitled "Looks More Like a Puma" rewards the player with an M12S Warthog when completed. The achievement title is a reference to Episode 2 of RvB.
Gears of War[]
The achievement "Is it a spider" is a reference to a line said during Episode 11 of RvB.
Halo General[]
The tires on the Warthog mention the name Puma. This is a reference to Season 1 Episode 2, when Grif says that he thinks the Warthog looks more like a Puma.
On Bungie.net, the Flag Kill and "Yoink!" medals both reference Red vs Blue. The description of Flag Kill mentions "It's right next to the headlight fluid," which is referencing Episodes 3 and 4 of RvB. When Red team tricks someone and steals something by surprise, they would say "Yoink!"
Halo 2[]
In the Turf multiplayer map, there are two soda machines. One has a picture of a rooster with a blue silhouette on it, while the other has a picture of teeth with a red and green silhouette on it.
In the Beaver Creek multiplayer map, You can find the words "Why Am I Here" written behind a rock near one of the sniper spawns. This is a reference to the Episode 1 of RvB, "Why Are We Here?".
Halo 3[]
During Crow's Nest, if the player proceeds down a corridor, a marine can be seen knocking on a door asking for a password to be let in. On different difficulties there will be different conversations with different stars of Rooster Teeth.
On Easy/Normal the two characters are Tucker and Doc, voiced by Jason and Matt
In Halo: Reach, some of the soldiers names in the Fireteam mechanic are the names of some of the people of Rooster Teeth.
During the level The Package, performing a special requirement allows the player to enter a special room called the Tribute Room, inside a database references Rooster Teeth and many other companies who have support Halo.
Halo 4[]
In certain episodes of Spartan Ops, there are hidden UNSC radios which, when shot, play Red vs. Blue's opening theme. As a result of triggering this easter egg, dialogue during key moments of a chapter will instead feature humorous dialogue voice by the series' cast. Finding one of these easter eggs will also award the Roses vs Violets achievement.
Hitman 2016[]
In Chapter 5 on the Tongue Tied mission two NPCs refer to the "Puddle Pile" - referencing a "Things To Do In..." done by Gavin Free
Loadout[]
Rooster Teeth was asked to create a trailer for the video game.
The Tower of Pimps created during the Let's Play Series got added into the tutorial world in Update 12.
Plants vs Zombies[]
On the bulliten board, the Achievement Hunter logo is seen, along with the phrase "Chevo-Hunters for hire."
Red Dead Redemption[]
In the Undead Nightmare DLC, a Chupacabra can be found and killed for an achievement called 'Chupathingy'. This is a reference to Episode 2 of Red vs Blue.