Here is the full list of all 12 Event[0] achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
You reached the “Together, Forever” ending.
You found the bridge password.
You found a very singular use for the piano.
You survived the accident in the bedroom.
You waited before entering the living room.
You did small talk with Kaizen.
You encountered Kaizen-85.
You reached the “Delivered on a Promise” ending.
You reached the "The Nautilus Is Yours" ending.
Kaizen tried to kill you, but you survived.
You opened all the logs of the Nautilus.
You found all the hidden commlink logs.