In this paper, we describe the design, development, and implementation of a curriculum based on teaching computer science using an industry-standard game-design software: Unity 3D. We discuss the theoretical underpinnings of our instructional design process and steps we have taken to introduce complexity and maintain student motivation. We discuss the challenges of this implementation and possible solutions and detail the additional steps related to teacher professional development, which is a key element for success of new and innovative curricular implementations such as ours.