The goal of the thesis is to design and implement a simulation game for the course "Bi7030 Bacterial Physiology", taught at the Faculty of Science MU. The game should simulate the metabolic pathways and biochemical cycles occurring in bacterial cells. The game will allow players to build molecular pathways from available molecules progressively. It will be developed using Unity, featuring a 2D interface and 3D molecular visualization. It will give the players the opportunity to test their knowledge of creating metabolic pathways and also give them the opportunity to learn about molecules and observe them using a 3D representation. In the practical part, the thesis output will include implementing the game. The theoretical part will discuss the development progress, the technologies used, the expected usage of the game, and possible improvements and changes. Informal feedback from the tutor of the course will be obtained as well.