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Continue to ChatGDC Day Two: Jesper Juul and sandbox play https://www.raphkoster.com/2006/03/22/gdc-day-two-jesper-juul-and-sandbox-play/
GDC Day Two: Jesper Juul and sandbox play https://www.raphkoster.com/2006/03/22/gdc-day-two-jesper-juul-and-sandbox-play/