ABSTRACT Social network games on Facebook have become a popular genre of video games. Social network integration and the free-to-play revenue model make them easily accessible but also easy to discard. In such an ecosystem, the quality of the game plays an important part. Improving playability is one method for achieving higher quality game experiences which might in turn lead to better retention and monetization. In this work-in-progress paper, we examine 12 social games and present the ten most common problem categories featuring game usability, gameplay and platform related playability problems.