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.
Kaizen tried to kill you, but you survived.
You found the bridge password.
You found a very singular use for the piano.
You survived the accident in the bedroom.
You encountered Kaizen-85.
You reached the “Delivered on a Promise” ending.
You reached the "The Nautilus Is Yours" ending.
You opened all the logs of the Nautilus.
You did small talk with Kaizen.
You waited before entering the living room.
You found all the hidden commlink logs.