The season at a glance.
After a long absence from the screens, Big Sister finally returned with Season 12—and it felt like the house had been holding its breath the entire time. Titled Mass Effect, the season wasted no time reminding everyone why they fell in love with the game in the first place. Fourteen new and returning Houseguests stepped aboard the Big Sister Normandy, and what followed was a season packed with unforgettable twists, shocking eliminations, and some of the most memorable masterminds the franchise had ever seen. Den orchestrated his way through the cosmos with surgical precision, reading the room before anyone else even knew there was a script. Colburn brought chaos and charisma in equal measure, turning every week into a potential earthquake. And Mariela Estrella emerged as one of the season's defining players, fighting her way to the Final Two through a combination of resilience and social brilliance. But what truly made Mass Effect special was the atmosphere inside the Normandy. The cast partied together, formed genuine friendships, and created memories that lasted long after the votes were read. Every Houseguest brought something unique to the season, whether through a bold move, a hilarious confessional, a shocking decision, or an unexpected moment of heart. After such a long break, Big Sister didn't simply return—it came back to life. Mass Effect reminded everyone exactly why they had missed it.
"Cage being blindsided with 3 advantages and over 1000 coins."✦ Defining moment
14 houseguests entered the house.
Order of finish.
- 🥇Cynthia
- 🥈Mariela Estrella
- 🥉Den
- 4Benjamin
- 5Colburn
- 6Jack
- 7EdenVET
- 8Blissy
- 9CageVET
- 10Wise
- 11Joanna
- 12Peter
- 13VenusVET
- 14Alba
What made it different.
- Double Eviction
A week with three nominees and two evictees — the bottom two on the block both go home back-to-back.
- Patrick/Patricia TaskComedic taskmasters
A comical figure that gives houseguests tasks or dilemmas.
- Paragons & Renegades
A twist that split the house in half game-wise, allowing two games of Big Sister to be played at once for the first two weeks — resulting in 4 evictions by week 3.
- Black Hole Eviction
A week where one person is safe and everyone else is up for elimination in a Survivor-style vote.
- Safari TwistInteractive power map
An interactive map that allows houseguests to find power in the game.
Week by week.
- Week 1 — Paragons vs Renegades✗ Alba (4-0) & Venus (4-0)
"Pls I can't go."
— Venus- HOH
- 🔵 Benjamin · 🔴 Mariela Estrella
- Twist or special
- 🔵 Paragons · 🔴 Renegades
- Nominees
- 🔵 Alba ♡ Cynthia · 🔴 Jack ♡ Wise
- POV
- 🔵 Cynthia · 🔴 Jack
- POV used
- 🔵 Yes, on herself · 🔴 Yes, on himself
- Final noms
- 🔵 Alba ♡ Den · 🔴 Wise ♡ Venus
Alba✗ 4-0
Venus✗ 4-0 - Week 2 — Paragons vs Renegades✗ Peter (2-1) & Joanna (2-0)
"This doll is DISRESPECTED."
— Joanna- HOH
- 🔵 Blissy · 🔴 Wise
- Twist or special
- 🔵 Paragons · 🔴 Renegades
- Nominees
- 🔵 Benjamin ♡ Peter · 🔴 Eden ♡ Joanna
- POV
- 🔵 Benjamin · 🔴 Eden
- POV used
- 🔵 Yes, on himself · 🔴 No
- Final noms
- 🔵 Cynthia ♡ Peter · 🔴 Eden ♡ Joanna
Peter✗ 2-1
Joanna✗ 2-0 - Week 3✗ Wise (6-1)
"I love getting my way."
— Cage- HOH
- Den
- Nominees
- Cage ♡ Colburn
- POV
- Eden
- POV used
- Yes, on Cage
- Final noms
- Wise ♡ Colburn
Wise✗ 6-1 - Week 4 — Black Hole Eviction✗ Cage (5-3-1)
"I'm equally mad and impressed."
— Cage- Twist or special
- Safe: Colburn · Nominees: Everyone
- Final noms
- Cage ♡ Blissy ♡ Mariela
Cage✗ 5-3-1 - Week 5✗ Blissy (4-1)
"Big Sister is full of surprises."
— Jack- HOH
- Colburn
- Nominees
- Den ♡ Benjamin
- POV
- Cynthia
- POV used
- Yes, on Benjamin
- Final noms
- Den ♡ Blissy
Blissy✗ 4-1 - Week 6✗ Eden (3-1)
"Happy Birthday 🎂."
— Unknown- HOH
- Benjamin
- Nominees
- Colburn (Auto) ♡ Eden
- POV
- Colburn
- POV used
- Yes, on himself
- Final noms
- Mariela-Estrella ♡ Eden
Eden✗ 3-1 - Week 7✗ Jack (2-1)
"Sometimes you have to be proactive and make the tough cuts."
— Den- HOH
- Colburn
- Nominees
- Benjamin ♡ Cynthia
- POV
- Cynthia
- POV used
- Yes, on herself
- Final noms
- Benjamin ♡ Jack
Jack✗ 2-1 - Week 8✗ Colburn (2-0)
"I feel like we burned a bridge that can't be fixed.."
— Mariela Estrella- HOH
- Mariela-Estrella
- Nominees
- Colburn ♡ Cynthia
- POV
- Cynthia
- POV used
- No
- Final noms
- Colburn ♡ Cynthia
Colburn✗ 2-0 - Week 9✗ Benjamin (1-0)
"I THOUGHT I WAS DONE 4😭😭😭😭😭"
— Mariela Estrella- HOH
- Cynthia
- Nominees
- Benjamin ♡ Mariela-Estrella
- POV
- Den
- POV used
- No
- Final noms
- Benjamin ♡ Mariela Estrella
Benjamin✗ 1-0 - Week 10 — Final HOH✗ Den (1-0)
"What if I'm making the wrong choice?"
— Cynthia- HOH
- Part 1: Den · Part 2: Cynthia · Part 3: Cynthia
- Final noms
- Den ♡ Mariela Estrella
Den✗ 1-0