Mark's been missing for 20~ years.

Also, there's a lot of ES: Etienne Schmidt, Empty S, Empathy Systems

Nina points out MTS as – Mobile Telecommunications System, Message Transfer System, Member of the Technical Staff

Empathy Systems sign makes Etienne stare at Nina and say he "mistook something for another" and then a chill goes down her spine when he drops the subject.

Ityne smiles at the notion of the Empty S being evil.

Ana says EmpSys is "not real, just a dream" and to not look at it.

Nina can do math really quickly in her head up to very large numbers.

I have no idea how this Alex, Etienne, and Annie don't have Ityne in their heads, nor how Ityne is alive again/still or which one she is (E288 or original!Ityne).

• Etienne – "Just don't rely on me completely. Who knows if she's ever going to come back?"

E's line can't mean ME because Alex's YOU is capitalized properly. I don't know who she is otherwise but he glared at Ityne while he said it.

• Nina Tremblay, 39, Investigator, Mark Tremblay/Invidia's Sister, married, not one of the triplets, "actually G," attracted to Alex
  
• Anastasia Plante, Spiritual Archbishop, knew Marco, references horses a lot.
  
• Etienne Schmidt/Tristitia, Technophysician, de-facto leader, worked on this for 7 years prior, robotic arm and eye, mentions a "he" did 45 years.
  
• ES [pronounced "eeh-yehs"], Android, nonbinary but switches between we and me when referring to self, speaks French and German, has kids, makes puns [could be either E288 or Mark], includes Emily & Simon [called it] & the "John agglomerate."
  
• Alex Saville/Ira, Majordomo, stopped stuttering, wants to propose to Annie, jokingly calls Nina sis, had "inside help" add his hand in place of an actual employee's, has a larger vocab to show off like Lucille, uses the wrong hand to finger gun his own head.
  
• Eighteen "Ityne Icofilm" AKA the original Emily Fiction, was the Spiritual Archbishop before Ana albeit of far higher rank.
  
• Magni AKA Zachary Raymond "Ray" Pierre from Head as Code
  
• Annie Sansoucy, daughter of Emmanuella; friends named Pri(scilla?), Sandra, Violette (Lettie) who died in a car crash
  
• Klemencia "Matriarch" Lachance, former top brass in Mechanical Branch along with Zachary Schmidt, actually ZS & KL Merged into K's body, favorite fruit kiwi
  
• Zachary Boisjoli, father to both Lucille & Alex, his assistant is Maximilian Martin, his friend is Klaus Gauthier who he hasn't seen since 2002, favorite fruit watermelon
  
• Bianca or Johanna "Carrie" Mayhem AKA "Subject 12" in Warp 281, favorite fruit apple, stole Andy who was Annie's first BF, likes marine animals
  
• Marco Martin, strong resemblance to Mark, father's name is Harold, who is or was the leader of Empty S, and the dead one in the trials is an Ex Machina.
  
• Empathy, AKA Simon Fournier, AKA Simon Schmidt the first Alpha Ex Machina of three with one other gone.

• Alex & Ityne are on Empty S's side
  
• EM, she/her, is in charge
  
• Man from Reset 33 was used as a test subject in 2281 when they developed the Seat of Convergence which allows for all this... Merging and Splitting.

• Dating Game
  
• Etienne ref'd an acid pool.
  
• Chair comfort rating
  
• Clairvoyance

• Talos Project
  
• Merge
  
• Split
  
• ME Code – Ityne & Marco code-ified a version of Ityne
  
• Abime – A Bichromatic Meridian/A Birthed Memory, French for "abyss"

• Anastasia/Annie
  
• Alex/Matriarch
  
• ES/Zach
  
• Etienne/Carrie
  
• Nina/Magni

• Montreal Logbook – "Day 6: Marco & Simon are getting along well. They make great friends."
  
• Smelly Book – M under supervision for 10~ years. "M has begun exhibiting signs of depression." "M has not aged a single day. E's reports are conclusive."

Etienne says ES is like a prototype for Ex Machinas.

Gerald has a dentist appointment at five.
Betty, Micha, Tatianna, Lory, Miu, Gunther, Pascal, John who stammers, John 2, Francesca, Marjory, Trevor, John 3, Sigma
Alicia
Harold & Lily

Erelle & Nico built Complex 6.

The staff are dressed like Ityne.

Zach's been in Complex 13 for 12~ years.

Zach sad, Matri meh, Annie mad, Carrie surprised.

Marco's prints are in the registry, Anne's mom put hers in, too.

A Zachary stabbed Marco.

Systems mentioned horses, Carrie mentioned swimming.

Empathy and Systems are moon guards, whatever that means.

Alex turned in Erelle, Nico, Lucille, & Mark over to the Empty S. They're dead.

Lower left has toppings, drawer contains the rolling pin, the oven plate is on the counter, the tiny box has garlic butter, atop the cabinet lies the tomato sauce, upper middle cabinet holds dough. Also, clear the drawer below the oven for proper venting.

Speak to Etienne until he's told you which cleaner to grab, then pick up the screwdriver on the right & use your tissues on the pile.
Once you hand over the head, go back then left twice.
Modern key bottom left, gold key upper right, copper key left mid. Go back, then left twice again.
Back and left twice, then show Alex either arm.
Back and left twice...

• Restroom
  
• Shower
  
• Side Room

Full credit to this site[www.dcode.fr] found by this guide created by bears. Asterisks indicate which buttons to hit.
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• Talos One, first true AI, is made in 2000, then tasked with creating God due to Emmanuella Sansoucy's influence on Harold Martin.
  
• A year and a half before the bombings, Tristitia maims Bianca with a truck; she begins taking drugs from Empty S.
  
• Half a year before the bombings, Luxuria molests the same Bianca.
  
• The original ES-type head is made in 2001.
  
• Empty S builds a faux-school designated complex 39 in 2002 after Lucille "Gula" Boisjoli bombs its original; Luxuria is blamed for the bombings.
  
• The Singularity is neared in March, 2002.
  
• Marco Martin, the biological original, is stabbed by Annie. Zachary Boisjoli is framed for it by Emanuella's order to Mark Tremblay to alter files.
  
• E's Technological branch grows Cephaloself #1; Fournier is the surname of the Alpha Ex Machina models' designer. C-self #2 is based on E, C-self #3 is based on Marco and goes on to die during Decide 4 God.
  
• In 2003, Talos One says AEMs are too slow, so it copied itself into a Beta Ex Machina, creating ES. All Machinas are made from matrigel going forward.
  
• Talos Two deletes the version of Talos One outside of ES, then Merges with Marco as a test to see if he can be made into a God to keep him alive forever.
  
• Over the next twelve years, the building is populated with one Alpha and several Beta Ex Machina units who are under the impression it's still before 2004.
  
• The original ES-type starts growing pillars of what's dubbed matrigel in 2008-2010
  
• In 2009, two AEMs are built: one for Hannah.
  
• Beta Ex Machina/the ES we know takes in 200 minds in 2012 as the second Abime prototype.
  
• Zachary Schmidt kills Harold Martin in 2013, then the cult starts killing people, including Annie's parents.
  
• ME is created from merging Marco and E288.
  
• The events of Birth ME Code occur in November 11, 2014, until Complex 39 and the portion of New York subway in which it resided are blown up by Marco (C-self) on Ityne's orders.
  
• ME is deleted, all Beta Ex Machinas are destroyed.
  
• Marco (cyborg) frees Simon Fournier in 2018, then messaged Nina as EM.
  
• Talos Two breaches containment in 2019.
  
• Complex Twelve is built in 2022 for Project DeForge.
  
• Alex from reset 288 is aged up and Merged with a scientist, becoming Agnos. Empathy is rolled back a month of memories and turned into Simon Fournier.
  
• Months later, Nina, Matri, and Agnos work together to infiltrate Complex 27.
  
• Nina becomes Jasmine, who... never existed, and the repeats turn J into a Hannah/Nina hybrid. Hannah is hanging out with Kadence, Nina's sister, and cats Timid and Feral Muffin, third generation down from Mini Muffin.
  
• Head AS Code happens on April 22, 2022.
  
• Matriarch brings Greta home to Hannah and is, I guess, their aunt now.