The expert review method is not yet widely adopted in game evaluations, although it has been used successfully in productivity software evaluations for years. In order to use the method effectively, there need to be playability heuristics that take into account the characteristics of the videogames. There are a few playability heuristic sets available, but they have several differences, and they have not been compared to discover their strengths and weaknesses in game evaluations. In this paper, we report on a first study comparing two playability heuristic sets when evaluating the playability of a videogame. The results indicate that the heuristics can assist the evaluators in evaluating both the user interface and the gameplay aspects of the game. However, playability heuristics need to be developed further before they can be utilized by the practitioners. Especially, the clarity and comprehensibility of the heuristics need to be improved, and the optimal number of heuristics is still open.