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