Multimedia Tools and Applications https://doi.org/10.1007/s11042-019-07955-w FuzzEG: Fuzzy logic for adaptive scenarios in an educational adventure game Spyros Papadimitriou 1 · Konstantina Chrysafiadi 1 · Maria Virvou 1 Received: 23 October 2018 / Revised: 16 May 2019 / Accepted: 10 July 2019 / © Springer Science+Business Media, LLC, part of Springer Nature 2019 Abstract Nowadays, there is an increased interest in using computer games for educational purposes. Educational computer games attempt to increase the students’ motivation and engagement. However, they should provide adaptivity to learners’ different needs and characteristics for better educational results. Towards this direction, this paper presents a novel adaptive educa- tional game named FuzzEG, which teaches the knowledge domain of HTML programming language. It uses fuzzy sets to represent the learner’s knowledge level more realistically. Taking into consideration the learner’s progress, the game decides about the level of dif- ficulty of the quizzes and whether the scenario is going to be dynamically expanded or not. The gain of this is that it provides the learner with a personalised learning and gaming experience. The game has been evaluated, and the results are very encouraging. Keywords Fuzzy logic · Edutainment · Adventure games · Adaptive games 1 Introduction Computer games are a popular way of entertainment. Nowadays, more and more people of different ages play digital games (usually web or mobile games) in their leisure time. Com- puter games’ interactive content, which includes videos, animations, texts, and audio, make them exciting and stimulating. As a result, they cause enthusiasm and pleasant feelings to users keeping them engaged. That is the reason for the tendency to use them for educational purposes. The computer games technology could be used to render educational software more motivating and engaging, making the painful process of learning amusing.  Spyros Papadimitriou spap@unipi.gr Konstantina Chrysafiadi kchrysafiadi@unipi.gr Maria Virvou mvirvou@unipi.gr 1 University of Piraeus, Karaoli, Dimitriou Str., 80, GR-18534 Piraeus, Greece