Modern psychophysiological game research faces the problem that for understanding the computer game experience, it needs to analyze game events with high temporal resolution and within the game context. This is the only way to achieve greater understanding of gameplay and the player experience with the use of psychophysiological instrumentation. This paper presents a solution to recording in-game events with the frequency and accuracy of psychophysiological recording systems, by sending out event byte codes through a parallel port to the psychophysiological signal acquisition hardware. Thus, psychophysiological data can immediately be correlated with in-game data. By employing this system for psychophysiological game experiments, researchers will be able to analyze gameplay in greater detail in future studies.