Fear Factor is an American stunt/dare game show that pitted contestants against one another in a series of extreme physical and mental challenges. The series originally aired on NBC for six seasons from 2001 to 2006 and was briefly revived for a seventh season in 2011–12. All seven seasons of the NBC series were hosted by Joe Rogan. A rebooted version of Fear Factor hosted by Ludacris aired for two seasons on MTV from 2017 to 2018.
The show's regular format featured six individual contestants (three men and three women) or four teams of two people competing in three extreme stunts for a grand prize of $50,000. The individual contestant format was the default for seasons 1–4, and season 5 contained a mix of individual and team episodes. The show permanently switched to the teams format in season 6, and this became the default format for the rest of the series, including the MTV reboot.