Trials Of Derpulies is a modded Minecraft series uploaded to the main Yogscast channel. The series features 3 teams: Sjipos (Lewis, Sips, and Sjin), Hat Films (Ross, Trott, and Smith), and Flux Buddies (Duncan, Hannah, and Kim). The series' goal is for the 3 teams to compete to win the challenges of Derpulies, a mighty king. The series ended with Derpulies going mad with power and turning on the teams, who eventually teamed together and killed him. Both the mod pack and the map were created by the same Yogscast team that created the Lucky Block Challenges. The series was filmed on July 14 and July 16, 2015, and the first episode was published on July 17. The last episode was uploaded on September 20, 2015. The series was succeeded by the Trials Of Skobbels, which began on September 25, 2015, and was recorded in mid-September.