Built with BYOB by Sheldon Pacotti, Game Blocks was developed as a teaching aid for a course on narrative design and writing for video games. It has thus been designed with a focus on ease of use, but also as a tool to inspire confidence in up and starting game designers. Game Blocks, you see, is both simple to play with and excellently documented, while allowing "novice game designers to experiment with storytelling, animation, physics, interaction and standard game types like adventure games, platformers, and arcade shooters".

The tool and its source code are available as free downloads for Mac and Windows here.