For assets in a 2D project to have a physical presence in the Scene and be able to interact with each other, they must have a 2D Collider. A 2D Collider is a component that helps define an asset’s physical shape to determine how it will interact with other colliders in a Scene. In this tutorial, you'll learn about the types of 2D Colliders you can use, and you'll apply a Collider to a GameObject.

In this tutorial, you’ll learn about two advanced physics solutions available for projects that use Unity’s Entity Component System (ECS) framework: Havok Physics for Unity and Unity Physics. Important: This tutorial only applies to Unity 2022.2 Tech Stream and beyond, which will be reflected in the tutorial version in early 2023.

For assets in a 2D project to have a physical presence in the Scene and be able to interact with each other, they must have a Collider 2D. A Collider 2D is a component that helps define an asset’s physical shape to determine how it will interact with other Colliders in a Scene. It does this via a built-in physics engine. In this tutorial, we’ll cover types of Collider 2D’s and how to apply them.

Previously, Unity had one physics Scene that was populated with all the bodies and colliders from all of your Unity Scenes. Starting in Unity 2018 LTS, you can split physics across Scenes. In this tutorial, you'll learn the basics of creating and loading alternate physics Scenes that can overlay a main scene.

Learn how to shoot some cookies and add physics to the mesh you've created.

In this Let's Try tutorial we will learn how to shoot using Raycasts. This tutorial provides both a video walkthrough and and article version of the instructions.