Abstract: In this study, we developed a prototype of gaming instructional materials for social skills education The targets of the instructional materials are university students We considered situations in which an interpersonal conflict could occur as problem-solving situations First, we designed a model of the knowledge and ways of viewing and thinking that we aim to train in social skills education, according to a problem-solving framework Next, we developed the prototype of gaming instructional materials based on this model Finally, we pilot-tested our gaming instructional materials on university students and evaluated it The results show that it is useful to think about situations with an interpersonal conflict in accordance with the problem-solving framework, and that the gaming instructional materials are useful for applying problem-solving skills learned in lectures