Lora Ariza DianaSánchez Ruiz-Granados, Antonio AlejandroGonzález Calero, Pedro AntonioCamps Ortueta Irene2026-01-262026-01-262022-12-01Diana Sofía Lora Ariza, Antonio A. Sánchez-Ruiz, Pedro Antonio González-Calero, Irene Camps-Ortueta: Measuring Control to Dynamically Induce Flow in Tetris. IEEE Trans. Games 14(4): 579-588 (2022)10.1109/TG.2022.3182901https://hdl.handle.net/20.500.14352/131030Dynamic difficulty adjustment (DDA) is a set of techniques that aim to automatically adapt the difficulty of a video game based on the player’s performance. This article presents a methodology for DDA using ideas from the theory of flow and case-based reasoning (CBR). In essence, we are looking to generate game sessions with a similar difficulty evolution to previous game sessions that have produced flow in players with a similar skill level. We propose a CBR approach to dynamically assess the player’s skill level and adapt the difficulty of the game based on the relative complexity of the last game states. We develop a DDA system for Tetris using this methodology and show, in an experiment with 40 participants, that the DDA version has a measurable impact on the perceived flow using validated questionnaires.engjournal articlehttps://doi.org/10.1109/TG.2022.3182901open accessGamesTask analysisBiomedical monitoringProductionIndustriesPsychologyInstrumentsInteligencia artificial (Informática)1203.04 Inteligencia Artificial