This post talks you through how to make a game in Unity. You'll learn to build a 3D maze for Android with tilt controls, and how to build on this further.

Game Builder features a “card-based visual programming system” for building 3D levels that abstracts coding through if-then statements.

Google's Area 120 made a free, drag-and-drop 3D game builder The tool lets multiple users build and play games simultaneously, no coding necessary.

The developers of Area 120 compare it a bit to something like Minecraft. If you've been able to craft structures in 3D games like that, you can make your own 3D levels in Game Builder as well.

Google says building a 3D level is like playing a game. There’s some truth in that, in that you are building inside the game environment, but it’s not necessarily an easy game either.