I was wondering what the ESRB for The Stanley Parable was. I looked up the game on ESRB website but no luck. So I've decided to think about it myself.
I say it should be T (13+):
- Mild language: the Narrator says "damn" and "hell" a few times, and during the Games Ending he says "heartless bastard"
- Also the Narrator references hookers during the Broom Closet Ending and says "Pervert" during the demo after choosing a button in the personality room.
- Mild drugs: During the Broom Closet Ending, the Narrator references drugs and drug money.
- Mild violence: During the Zending, the screen gets redder as you keep falling. Also the Explosion Ending is a little violent when the facility explodes.