Castaway: One World

 is the seventh season of Castaway and was produced on January 30, 2021.

The season borrowed elements from the CBS reality television competition Survivor. Hosted by Robert, it consisted of twenty competitors. This season was the first to be streamed live on YouTube.

The two tribes, Manono and Salani were named after Manono Island and a region of Samoa respectively. When ten competitors remained, the two tribes merged to the Myzomela tribe named by Benji after the native Samoan bird. Burcham won the season over Trav and Courtney in a 4-2-1 vote.

The season introduced "Trial by Fire", inspired by a concept used in Australian Survivor, in certain eliminations the voted out competitor will choose two of their former tribe to compete in a duel to remain in the game.

Development and Casting
This season introduced "One World" to Castaway, based on the twenty-fourth season of Survivor: One World. Throughout the entirety of the season, tribes are permitted access to the opposing tribe's breakout rooms (which are off-limits in all other seasons unless specified otherwise) and at Tribal Council, both tribes will attend with the immune tribe observing their opponents dynamics. In addition to attending opponent Tribal Councils, the observing tribe have the option to play advantages during Tribal Councils where they do not vote in an attempt to disrupt the vote.

Casting began shortly following the conclusion of Castaway: Millennials vs Gen-Z with an emphasis during the application process that contestants agreed to be livestreamed.