Welcome to 3D Interactions and Navigation, the third course in the Unity Certified Programmer Specialization from Unity Technologies. This course will help you prepare for the Unity Certified Programmer exam, the professional certification for entry to mid-level Unity programmers. Unity is used to create real-time 3D applications for many industries, including video games, automotive, film, training, and more. In this course, you will be challenged to solve realistic Unity programming problems that are aligned to topics covered on the exam. In the third course, you will start development on a new 3D application: Stealth. In this application, a 3D stealth-style game, the user guides a 3D character through a maze-like environment filled with hazards in an attempt to avoid detection. In implementing this application, you will review and practice many of the skills covered in the exam, including setting up navigation meshes and agents, working with 3D character animation, scripting camera movement, and more. This is an intermediate course, intended for people who are ready for their first paying roles as Unity programmers, or enthusiasts who would like to verify their skills against a professional standard. To succeed, you should have at least 1-2 years of experience programming interactive applications in Unity. You should be proficient at programming in the C# language and familiar with Unity's scripting APIs. You should have experience in the full product development lifecycle, from concept to launch (and beyond). And you should understand multi-platform development, including deploying applications to XR (AR and VR) platforms.