This is the only mandatory part of the Drupalcon Szeged registration process which you need to pay for. You should have a valid, paid conference pass to be able to attend the event. The price for the conference pass depends on when you register, but includes the same services, which are the following:
We managed to make it possible for you to register for these prices thanks to sponsorships we are expecting. If you'd like to sponsor the conference, check out our sponsor packages or consider signing up for the "I supported Drupalcon Szeged" shirt at the end of the registration.