Within my thesis, I learn three-dimensional multiplatform game development, which contains as interesting challenges as possible where I can apply my university studies. The project includes many various tasks. I provide an overview about modeling, importing and applying these objects in the actual scene, then implementing certain tasks using scripting. In the game, the player has to control a flying taxi in a futuristic world, deliver passengers to their desired destination for a reward, while avoiding collision with obstacles. My chosen tool and environment for game development is Unity3D, and Blender for 3D modeling. Since Unity3D is a multiplatform environment, I want to use its possibilities. Primarily, I focus on developing on mobile platform, providing controls using built-in sensors, but I also implement controls on desktop computers using a keyboard and mouse. After implementing, I test the program’s functionality, and depending on the result I extend, improve or modify the program.