dtuncalp Client Turkey Joined July 2016 ContestContests Logos Status Prize * Big Bang | Start-Up Challenge Big Bang | Start-Up Challenge is the leading start-up competition and the demo day event in Turkey. 409 Logos Complete Status $675 Prize Big Bang | Start-Up Challenge Big Bang | Start-Up Challenge is the leading start-up competition and the demo day event in Turkey. 409 Complete $675 Private Contest Designers please log in to view 379 Logos Complete Status $675 Prize Private Contest Designers please log in to view 379 Complete $675 * The Prize Package includes the Designer prize and all LogoTournament fees.