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