Introduction: Virtual worlds (VWs) are immersive three-dimensional environments, accessible simultaneously to multiple users, and described as shared, simulated spaces, whose inhabitants represented as avatars. VWs enable freedom of expression. Using VWs in educational contexts requires a shift from teacher-centered instruction to facilitation of…

In a study on experience-based learning in serious games, 45 players were tested for topic comprehension by a questionnaire administered before and after playing the single-player serious game Peacemaker (Impact Games 2007). Players were divided into two activity conditions: 20 played a 1-h game with a 3-min half-time break to complete an affect…