Three-Tribe Format

The Three-Tribe Format is a major tribe division twist that increases the number of competing tribes during the pre-merge phase of the game from two to three. 
A variation of the twist, the Four-Tribe Format, featured in .
==Conception==
The idea behind the three-tribe format is to change up how the numbers work in the game. Whereas the basic two tribes can give one tribe an automatic numbers advantage, the extra tribe switches this up so that one specific tribe would have to get others on their side for a majority. Seasons with this format most commonly feature 18 castaways due to it being the most ideal number to still maintain equal numbers distribution. The downside to the three-tribe format means that the small numbers cause one tribe to fail more dramatically at the immunity challenges and lose a large chunk of their tribe. To stem this, a tribe switch usually dismantles one of the tribes, leaving the remaining two with mixed numbers from all three tribes. There have been variations to this. introduced the Noonu tribe after a tribe swap, introducing the three-tribe format into the game after previously starting with the basic two tribes
==Three-Tribe History==
===All-Stars===
The seventh season, , was the first to feature the three-tribe format. It was brought in to complement the significance of it being an all-returnee cast for the first time.
===Ethiopia===
The eleventh season, , was the second to feature the three-tribe format. It divided the tribes of new castaways into two tribes from the beginning, by Brain vs. Brawn, but introduced a third tribe in a tribe switch.
===Second Chances===
The twelfth season, , was the third to feature the three-tribe format. It divided the tribes of all-returnee castaways into two tribes from the beginning, by random draw, but introduced a third tribe in a tribe switch.
===Greece===
The fourteenth season, , was the fourth to feature the three-tribe format. It divided the castaways into three tribes from the beginning, based on what CBS Survivor season they said was their favorite on their application.
===Turkey===
The fifteenth season, , was the fifth to feature the three-tribe format. It divided the castaways into three tribes from the beginning, by Fans vs. Favorites vs. Friends.
===Battle Royale===
The seventeenth season, , was the sixth to feature the three-tribe format. It divided the tribes of all-returnee castaways into two tribes on Day 4, by random draw, but introduced a third tribe in a tribe switch.
Category:Twists