How to Make a Hole Game in Unity

We will create a Hole Game similar to hole-io.com or Donut County in this video. We will learn how to cut holes in solid geometry. First, I will show you how to create a 3D collider with a hole with the help of a 2D polygon collider. Then we will make some physics optimizations so we will activate rigid bodies only when they are near the hole. Then we will create a backface culling shader inside Unity shader graph and with the help of Universal render pipeline (URP) render features like stencil buffer and depth buffer, we will create the hole illusion. I will show you how to move the hole with physics raycaster and unity event systems, and also we will make a growing animation when we catch more obstacles.