Papers from GDTW 2008 -- Coordinating Heterogeneous Game-Based Learning Approaches in Online Learning Environments -- Networking Middleware and Online-Deployment Mechanisms for Java-Based Games -- A Testbed for P2P Gaming Using Time Warp -- How to Steer Characters in Group Games -- Time-Based Personalised Mobile Game Downloading -- Papers from Cyberworlds 2008 -- Adopting Virtual Characters in Virtual Systems from the Perspective of Communication Studies -- Teaching Me Softly: Experiences and Reflections on Informal Educational Game Design -- Visual Haptic-Based Biomolecular Docking and Its Applications in E-Learning -- Exploring Movie Recommendation System Using Cultural Metadata -- Virtual and Augmented Reality Tools for Teleoperation: Improving Distant Immersion and Perception -- HES-SPATO: An Online History Educational System Based on SCORM -- Regular Papers -- Pyvox 2: An Audio Game Accessible to Visually Impaired People Playable without Visual Nor Verbal Instructions -- Design Tools for Online Educational Games: Concept and Application -- Earth and Planetary System Science Game Engine -- A XML Tree Based Leveled Filtering Method and Its Application -- Fostering Students' Participation in Face-to-Face Interactions and Deepening Their Understanding by Integrating Personal and Shared Spaces -- Make Learning Fun with Programming Contests -- KEI-Time Traveler: A Virtual Time Machine with Mobile Phones for Learning Local History -- A 3D Campus on the Internet - A Networked Mixed Reality Environment -- Photo Realistic 3D Cartoon Face Modeling Based on Active Shape Model.