For signing up to activity you need pay your ticket beforehand and have to be logged in. Activity also must be in valid day for your ticket (if you have ticket for the whole festival, you do not need to worry).
Do you miss something on the program that you would like to play or want to play some from your collection? After signing up, you can create a custom activity that you and other visitors can see here on our site. Finding players for a game, that you have been longing to play for a long time, has never been easier!