Data is becoming an important central point for making design decisions for
most software. Game development is not an exception. As data-driven methods and
systems start to populate these environments, a good question is: can we make
models developed from this data transparent to users? In this paper, we
synthesize existing work from the Intelligent User Interface and Learning
Science research communities, where they started to investigate the potential
of making such data and models available to users. We then present a new area
exploring this question, which we call Open Player Modeling, as an emerging
research area. We define the design space of Open Player Models and present
exciting open problems that the games research community can explore. We
conclude the paper with a case study and discuss the potential value of this
approach
