Procedural content generation for games has segmented itself as an efficient and powerful method of authoring game content. In this project, we attempt to create a development tool for a physics-based path-building puzzle game based on the domino effect. The tool combines procedural generation with the quality of hand-designed game content. The project explores a generation flow that combines state of the art game development tools, procedural puzzle generation methods, and graph theory to create a generation tool that divides the generation process into three stages: Level generation, puzzle generation & puzzle evaluation, at each stage in the generation process the designer can make non-destructive modifications from which the generation process can be continued. Although no evaluation was conducted the generation process of the tool can still be regarded as a success as it reduces development time and the resulting quality significantly