Here is the full list of all 27 One Night Stand achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
You investigated every item in the game.
You both felt the same way about the book, her writing and Love IRL.
Accuse her of drugging you.
You told her the last name that she wanted to hear.
What’s in a name anyway?
You receive another message from Gary.
Honesty really is the best policy.
Turns out you share the same name!
She picked up her six-string.
You chose not to believe anything.
You might want to double check the evidence...
You became a fan of Love IRL.
You got thrown out with your clothes on.
You choose to remain silent whenever possible.
You made a break for it.
You got rejected.
That's why they call it a one night stand.
You became friends.
You successfully stole a pair of her panties.
You got caught wearing her underwear.
You got thrown out.
You got thrown out without your clothes.
Order a fancy coffee.
Escaped quickly and clothed.
Escaped during her moment of need.
You failed at the last hurdle.
Sharing isn't caring.