Within the context of the SIM ERP simulation game, this report provides an analysis of the author’s experiences and decisions, with a particular emphasis on the strategic decisions the author took in the areas of marketing, financial management, and manufacturing, as well as an evaluation of the influence those choices had on the overall success of the company. Among the important factors that are investigated in this study are marketing techniques such as budget allocation and market segmentation, as well as financial decision-making, which encompasses plans for loan repayment and liquidity management. In addition, the report provides a reflection on the lessons that were learned from mistakes, such as overly aggressive production planning and inadequate communication between departments. In the context of strategic management, the findings emphasize the significance of making decisions based on evidence, being flexible, and exercising financial restraint respectively. Through the use of the simulation, the necessity of continuously evaluating and adjusting plans in response to changing market conditions was brought to light even more. The conclusion of this analysis is that it offers useful insights into the difficulties of corporate decision-making and provides guidance for improving future strategic planning in business contexts that are comparable to those that have been examined.