Here is the full list of all 24 SIMULACRA achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Run Greg run
Ask her anything
That Is Just A Compliment
The Internet Never Forgets
Derezzed
The Gift of Jab
She Needs To Know
Gossip Girl
You've got Mail
She Loves Me!
Sharing Is Caring
Punked!
Just In Time
This Is The Police!
Wordsmith
That Is Not A Compliment
Looking for love
Crime Doesn't Pay
You're hired!
This is too much
You found Anna
You killed Anna
A happy ending
Find the truth.