This is the third-person shooter game as instructed by Sebastian Lague in his video series.
The player is a Unity capsule collider (the Pill) which shoots (the Blasta part) enemy capsule colliders that follow and attack the player. As in an actual game, both the player and the enemy objects have finite health and can die.
This is a comprehensive video tutorial. It covers all conceivable aspects of video game production which includes asset creation, artificial intelligence, map generation and progressive leveling.
My code differs in style from Sebastian's with an emphasis on readability and immutability.
If you are completely new to Unity then I would not start with this video series. The author, Sebastian Lague, speeds through his tutorials with the assumption that you are comfortable with C# and the Unity platform. Instead, start with the following video tutorials produced by Unity. They are quick and simple tutorials and the narrator takes time to explain concepts.
There are other tutorials which I skipped but still encourage you to try. After I finished Space Shooter I was anxious to deep-dive into Unity and which led me to Sebastian's video series. I will work through the other Unity tutorials—I'll commit my progress on GitHub along the way—after I finish PillBlasta.
The truth is you can create Unity applications without a strong understanding of math and physics because, well, that's the point of Unity! It abstracts away specialist knowledge so you can start to create right away.
With that said, knowledge of both subjects will certainly aid your effectiveness in the Unity platform. I'm currently working through pre-calculus text book.