This paper describes a development of tuna fishery policy analysis using a combination of System Dynamics (SD) simulation modelling and Game Theory (GT) approach under a particular project to assure the sustainability of tuna fishery industry. The project was taking place in a coast called as Sendang Biru village, Malang Regency, Indonesia. The simulation to achieve fishery sustainability is done by SD approach, while the policy decision-making is done by GT approach. The method used in this project is flexible and expandable. It can be used to provide a comprehensive policy analysis for local government and involved parties in the Malang Regency as a practical benefit as well as broaden connectivity between simulation and modelling tools as a scientific benefit.