Castaway: Millennials vs Gen-Z

 is the sixth season of Castaway and was produced on January 16, 2021.

The season borrowed elements from the CBS reality television competition Survivor. Hosted by Robert, it consisted of twenty competitors.

The two original tribes were named after the Fijian word for "turtle" (Ikabula) and "home" (Vanua) respectively. When fifteen competitors remained, a third tribe, Takali named after the Fijian word for "open sea" was formed. When eleven competitors remained, the three tribes merged to the Vinaka tribe named by Stanley after the merged tribe from Survivor: Millennials vs Gen X. Lauren won the season over Drew and KP in a 6-1-0 vote.

Exile Island returned for its third season following the same format in Castaway: David vs Goliath with a rule change when the tribes merged as the winner of individual immunity could not choose themselves to go to Exile Island and had to select another competitor.

The season also explored the different "generations" of Tribal Council rules, with each tribe observing a different facet of how tie-break votes are resolved.

Development and Casting
The sixth season was announced following the finale of Castaway: David vs Goliath. After the success of the previous season, attention turned to other versus style seasons and implement them into the online community. Robert had enjoyed Survivor: Millennials vs Gen X but was unsure how to translate the theme as the majority of players would fall into the Millennial category, and sought to create an unofficial sequel to the source material where Millennials would be the older tribe and "Gen-Z" would be the new younger tribe. The Gen-Z tribe would use the Ikabula aesthetics as opposed to using Takali, which became the expanded tribe in this iteration.


 * ("Millennials") were players aged between 24-40.
 * ("Gen-Z") were players aged between 18-23.