The purpose of this study was to develop an instrument for the evaluation of instructional computer games. From the review of literature dealing with the educational attributes of computer games, the researchers designed a list of evaluation standard comprising goal, content, control, feedback, program construction, technical features. The list was submitted to the norm group for a review. The researchers analyzed the relationship between the main attributes and among sub-attributes in the list through the content validity, construct validity, generalizability and measures of stability. The results indicate that each attribute in the list has an acceptable degree of validity and reliability as a content for evaluation standard of computer games.