Published on Thu Aug 06 2020

Mixed-Initiative Level Design with RL Brush

Omar Delarosa, Hang Dong, Mindy Ruan, Ahmed Khalifa, Julian Togelius

RL Brush is a level-editing tool for tile-based games. It uses reinforcement-learning-based models to augment manual level-design.

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Abstract

This paper introduces RL Brush, a level-editing tool for tile-based games designed for mixed-initiative co-creation. The tool uses reinforcement-learning-based models to augment manual human level-design through the addition of AI-generated suggestions. Here, we apply RL Brush to designing levels for the classic puzzle game Sokoban. We put the tool online and tested it in 39 different sessions. The results show that users using the AI suggestions stay around longer and their created levels on average are more playable and more complex than without.

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