Create games without code! Thanks to advances in state machine tech, it's now possibly using Unity3D and Playmaker.

No-code Video Game Development with Unity3d and Playmaker

teaches you how to create a complex video game without ever having to write a single line of code! By leveraging the powerful new technology of State Machines, a game developer can eliminate code and instead make diagrams to control the game's operations. Creating a video game is now as simple as drawing a flowchart!

The No-code Video Game Development with Unity3d and Playmaker course features over 6 hours of video tutorials, transcripts, 11 quizzes, free Unity projects, scenes, packages, Playmaker templates, and art assets. It is divided into 3 sections:

The first section is in-depth, non-exhaustive instruction of Unity, its capabilities, its use.
The second section teaches programming concepts and vocabulary, stopping just short of coding. Flowcharts are explained and demonstrated. Playmaker is introduced by way of an example project.