This book constitutes the refereed proceedings of the 23rd International Conference on Entertainment Computing (IFIP-ICEC 2024) which was held in Manaus, Brazil, during September 30 – October 3, 2024. The 13 full papers, 8 short papers and 17 papers of other types presented in this volume were carefully reviewed and selected from 60 submissions. The works collected in this volume discuss latest findings in the areas of Game Experience, Player Engagement and Analysis, Serious Gameplay, Entertainment Methods and Tools, Extended Reality and Game Design.