The report describes the results of an Office of Civil Defense research study on the process of adoption and diffusion in future strategy environments. The Simulmatics team was directed to "develop a human simulation experiment in the form of a game to be used as a device for gaining new insights about human behavior in crisis periods and as a training aid. The same procedure will attempt to further synthesize research findings about the nature of community power structure in implementing civil defense programs and the likely effect of heightened international crisis on the expectations, attitudes, and behavior of people." A methodology was explored for simulating such behavior--namely, a game involving participants in interactions resulting from their own actions and decisions. Part 1 of this report is a discussion of initial concepts and bases for the game. Parts 2 and 3 deal with the first basic simplification and the change of stress of the game. Part 4 is the final version. The document includes 13 charts. (USRDR/ly)