Guest Editorial Special Issue on AI-Based and AI-Assisted Game Design

The papers in this special section focus on game design based on artificial intelligence (AI). As researchers working with games, we are often faced with terms that either lack a definition entirely or which are contested and debated as part of their very nature. Many papers have tried and failed to define what “fun” is, from where “creativity” originates, or what “difficulty” means, for example, and many more papers in the future will try and fail to do the same. Tangling with ineffable concepts, with moving targets and nebulous ideas is all part of the joy of doing artificial intelligence (AI) research in a complex, multifaceted domain like games.