Adrian is one of the designers the for independent game company called D-Pad Studio. The company that made the critically acclaimed Owlboy. He helps with support, testing, setting up maps, and polishing up the game. He also writes about design on Gamasutra. He explains why it's important to think about measurements. You should think about the distance of the camera, how far something is, how long it takes to go from point to point, and more. This will help blend the game well and target your specific audience better.
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