Are we allowed to come up with an idea and create a planning before the 60 minutes start?
No because you need to see the theme and that is announced when the game jam starts.
I see, but the jam lasts longer than 60 minutes
That is because if I made the time only 60 minutes no games would even really be submitted. The game must still be made in 60minutes but I give people time if they can’t start straight away or they need to try again.
Woops, I just reread the questions people asked previously and it looks like you already answered this question. My bad