Unity has its own physics system build inside, so you can create basic interactions between objects in just a couple minutes. As a general rule, if you are going to have moving game objects in the game you should use unity’s rigid body objects. Rigid bodies are basically components that allow game objects to be affected by physics, they make the object fall on the ground because of gravity and have physic properties such as mass, drag and velocity. It’s important to remember that the object must have a collider attached in order to interact with other physic objects.
Thus, with just a couple pieces and these two components, you can create really cool gameplay mechanics without worrying too much about the programming part at all!
In this example, I built a really simple Jenga tower to show how moving the different pieces interact with the overall structure:
