The main aggregate data file consists of the following measures: Meta Data: Participant ID, session number, condition (Retro or Retro_ESM), and game played. Pre-measures: Demographics, baseline emotions, big 5 personality traits (B5), immersive tendencies (ITQ), game genre preference, Brain Hex gamer types, tondello gamer traits, baseline simulator sickness (SSQ), and baseline physiology (calibration). Exposure measures: Retro emotion measures (aggregated for every 60-second interval for both the 'Prior' 60s from the interval and over a 'Window' of 30s before and after the interval), Retro keypoint measures, experience sampling method (ESM) measures, and physiological measures aggregated for the same 60-second intervals (both 'Prior' and 'Window') Post measures: PPL flow state (PPL-FSQ), flow state short (FSS), intrinsic motivation (IMI), multimodal presence (MPS), simulator sickness (SSQ), and qualitative questions comparing RetroSketch and ESM. For further details about the measures, please refer to the associated paper.