Computer simulation is a suitable tool for planning a production process since it allows to predict the behaviour of an actual system without obstructing the system itself. In the paper, in order to make the utilization of computer simulations even simpler when planning the production process, a universal simulation model was created that is easily applicable to systems of production of all types and forms. Universal simulation modeling is based on receiving three types of data (product quantity, duration of the process, and the movement of the product on the production line according to its production capacity) that the end user enters into separate tables in order to manipulate the simulation model. It has been shown that universal computer simulation modeling saves time and that the organization of the production process is made easier for the end user. After the paper’s introductory part in which a theoretical overview of discrete-event simulation is provided, an explanation of a conceptual production process is given. Afterwards, a detailed process of creating a universal simulation model follows together with its validation and verification, and the entry of specific data from the conceptual process. Finally, an analysis and interpretation of the results is conducted, and a final solution of the conceptual process is set. At the end of the paper, an alternative solution to an observed problem is offered.