This final paper describes the process of creating a 3D game for personal computers, using Unity 3D game engine and C# programming language. The aim of this work was to create a game that will provide entertainment to players with its appearance, animations, sounds and general atmosphere. In order to make such a game, it is necessary to know several technologies. All the materials needed to learn these technologies are available online and completely free. The name of the game is Speedy Zeedy and you can try two game modes: endless run and 300 meters run mode. In the first mode, the goal is to avoid obstacles in front of the player, which keeps coming faster and faster, in order to achieve the best possible result. In the second mode, the result depends on the time the player achieves in the 300-meter race. The goal is to achieve the best possible time, and the player himself determines the speed of the character. The game is in 3 dimensions (3D game), the game is played in the third person and by genre it belongs to the action games with a straight line movement to infinity.