Abstract
In this paper, our purpose is to discuss behavior process of players with individual rationality in social dilemma. We propose “Multiple Lake Game with Local Governments” as a social dilemma model, which is the extended game of the environment management game, “The Lake”. In the extenstion of “The Lake”, we introduce new player with individual rationality to prevent players from becoming free-riders. Furthermore, we set multiple lake to make new players compete each other. In experimental results, we confirm that the evolutionary acquired strategies of these players were shown to keep away from social dilemma though all players behave to increase their own payoff.