The aim of this master's thesis is to provide a detailed overview of the process of creating a 2D computer game using Unity. The introductory section will explain how to set up a new project in the Unity environment, along with a basic overview of the program's functionalities. Furthermore, the concept of sprites will be presented, as well as how they can be utilized to create a 2D game. Through practical examples, the creation of the main character will be demonstrated, along with how to manage scenes within Unity. The skills of the main character will be explained in detail, with an overview of their functionality and implementation in the game. The next section of the thesis will focus on the creation of enemies, including their animations and programmed behavior. The game’s story will also be explained, as well as how it is told through various elements within the game. Special emphasis will be placed on creating the user interface, including the canvas, where it will be demonstrated how to customize and apply it within the game. Additionally, the use of the audio mixer will be presented, along with its application throughout the project, ensuring control over sound and effects.