Winning this type of challenge will secure the winning housemates a safety from facing the public for eviction while those who lose the challenge will be automatically nominated for eviction.
Instead of the usual nomination voting process, the housemates will compete in a series of immunity challenges to save themselves from being one of the nominees.
In some cases, the housemates may compete individually or they may be grouped into teams by Big Brother.
For this format, the players will compete in a series of rounds, often in three to four challenges. In each round of the challenge, there will be a winner. Whoever wins in each round will be saved from the nominations and will be eliminated from the challenge, thus being ineligible to compete in future rounds. The housemates who remained and failed to win any rounds will become the week's official set of nominees for eviction
Sometimes, the point system is used for the competition. The players will compete in a series of challenges and would gain a point corresponding to their place in the challenge; the first place gaining the largest points while the last place gaining the least points. After they all finished the competition, The housemates who gathered the least total points at the end of the competition will become part of the official set of nominees for next week's eviction.
Pinoy Big Brother: All In
|Week 8||All Out Week|| Jane Oineza|
|Week 10||All in 10 Week|| Cheridel Alejandrino|
|Week 11||Super Challenges|| Fourth Pagotan|
|Week 12||Do You Know?|| Daniel Matsunaga|
Pinoy Big Brother: 737
|Teens||Week 5||Pinasaya Challenge|| Ylona Garcia|
|Week 6||Big-ating Concert|| Zonia Mejia|
|Adult||Week 12|| Food Fest, Food Fight|
(Big Yanig Week)
| Charlhone Petro|
|Week 14||Dance 'Til You Drop|| Tommy Esguerra |
Pinoy Big Brother 7
|Teen||Week 14||Balls in the Box|| Vivoree Esclito|
|Adult||Week 22||Double Trouble Week|| Ali Forbes|
|Dream Team||Week 32||Pair Nomination Week|| Kisses Delavin Yong Muhajil|
Nonong Ballinan Jinri Park
Big Brother 19 (UK)
|Week 1||Big Coin Week|| Anamélia Silva|
Pinoy Big Brother OTSO
|Batch 1: Teens||Week 4||Jungle Bells|| Karina Bautista|
|Batch 2: Adults||Week 15||Dancem8s Ni Kuya|| Fumiya Sankai|
|Week 16||Duel Challenge Competition|| Yamyam Gucong|
Big Brother Brazil 19
|Week 1||"FIAT Colors Endurance Competition"|| Alan Possamai|
Big Brother Brazil 20
|Week 14||"Podium Competition"|| Babu Santana|
- This competition is more similar to Survivor's Immunity Challenge in terms of purpose.
- The Super Challenges Week of Pinoy Big Brother: All In, Food Fest Challenge of Pinoy Big Brother: 737 and the Double Trouble Week of Pinoy Big Brother 7 were all played in Teams. The housemates were divided into two teams where in the losing team will become the nominees at the end of the week.
- All Out Week of Pinoy Big Brother: All In, Big Yanig Week of Pinoy Big Brother: 737 and the Double Trouble Week of Pinoy Big Brother 7 all held multiple evictions within the week.
- All Out Week and Big Yanig Week had triple eviction while Double Trouble had double eviction.
- The Nomination Week's Ligtask Pair Challenges during the Dream Team Chapter of Pinoy Big Brother 7 were played in pairs. The two pairs who got the least amount of total points collected throughout the week will become nominees.
- The competition during Week 14 in Pinoy Big Brother 7's Teen Chapter was both a Nomination competition and a Ligtask Challenge.
- Big Brother Brazil 19's FIAT Colors Endurance Competition features the most housemates to be nominated at one time, with 14 housemates being nominated.
|Pinoy Big Brother Competitions|
|The Big Jump • Double Trouble • Dream House • Dream Team Challenge • Eviction • Immunity • HOH • Ligtask • Nomination • The White Room • 4th Lucky Spot|