  This volume contains the joint proceedings of the Workshop on Games for the
Synthesis of Complex Systems (CASSTING'16) and of the 3rd International
Workshop on Synthesis of Complex Parameters (SynCoP'16). The workshops were
held in Eindhoven, The Netherlands, as satellite events of the 19th European
Joint Conferences on Theory and Practice of Software (ETAPS'16). Both workshops
are closely related in their topics as well as target audience and they shared
a joint invited talk given by Giorgio Delzanno.
