Big Brother 21

Big Brother 21: Origin Story was the twenty-first season of Big Brother SIMulator. It began on April 19, 2021 and ended on April 21, 2021. In-game it lasted 30 days, ending when Ray Stuckey won over Francis Scorn in a 6-3 vote.

Twists

 * Returnees:

Noteworthy Pairs

 * Ray and Oliver (showmance)
 * Owen and Evanne (showmance)
 * Hiraku and Hannah (showmance)
 * Oliver and Lee
 * Francis and Charlie
 * Flo and Vikram
 * Jasmine and Nellie
 * Michelle and Hannah
 * Jasmine and Hannah (until Day 4)
 * Nellie and Ray (after Day 18)



Noteworthy Rivalries

 * Flo and Oliver
 * Hannah and Oliver
 * Jasmine and Hannah (after Day 4)
 * Nellie and Ray (until Day 18)



Post-Season
There is 1 houseguest that debuted this season and returned for a later season of Big Brother, giving the cast a 7% returnee rate.


 * Ray returned for Big Brother 22: Winners at War.