Anything you wouldn't want to be caught looking on at work, or at school, or in the family?! You won't find any firm definition because it's not so simple. Use your common sense.
Viewing post in what is adult/Sensetive content
So normally on game cover you will find the rating(18+/13+ or the T logo and so on) witch tell you what rate the game has. let's just say my adventure game has blood like to many and i see under 18 play it normally. i want more explanation cause i take responsibility of anything i publish on itch and i don't want to get into trouble in future.
thanks