Abstract
This work proposes a solution to improve the cooperation between humans and computer Artificial Intelligence (AI), as a colleague, in the creation of puzzles for video game levels. With this interaction we hope to give the designer a source of creative stimulus, in order to achieve overall more creative results than those obtained if said designer was working alone. The proposed solution consists of a co-creative puzzle creation tool, focused on improving creativity by allowing human and computer to work together in producing content using the Legend of Grimrock 2 Level Editor, exploring the digital “peer” paradigm. Its interface can be used by the designer to preview generated suggestions and orient its behavior. Suggestions are generated and iteratively evolved by three genetic algorithms and can be guided by the designer on different domains: objective, innovation, user map; all then combined in a fourth one that re-evaluates the best suggestions of each previous algorithm, again on the three domains, with different weights based on the users configuration, to choose the best suggestion overall. Results showed a positive influence on the puzzle creation because our approach takes into account the smaller nuances of the co-creative interaction. Outlined improvements such as a better way to support designer-specific interaction patterns, improved algorithm behaviour and integration with past tools set the direction for future work. We concluded that through an intuitive interface, flexible and adjustable behavior, we were able to provide some positive contributions to the quality of the co-creative puzzle creation process.