Sweetser Kyburz, PennyJohnson, Daniel2020-01-099781450368711http://hdl.handle.net/1885/196738GameFlow is a widely used model of player enjoyment, with hundreds of applications to designing and evaluating games and game-like experiences since its first publication. Despite its widespread use, there has been limited evaluation of the GameFlow model and previous evaluations have focused on expert reviews from researchers with expertise in player experience. In this paper, we present a study in which 12 different stakeholders (developers, players, researchers, and journalists) conducted expert reviews on a game under development using the GameFlow criteria and provided feedback on the model. We reflect on several key points of improvement for future versions of the GameFlow model and criteria.application/pdfen-AU© 2019 Copyright is held by the owner/author(s)GameFlow; flow; videogames; player experience.2019-1010.1145/3341215.3356286Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the Owner/Author.