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