Crop simulation models are computer programs that help predict how crops will grow based on weather, soil, and crop conditions. These models are important for making decisions in agriculture because they save time and resources. Two popular models, DSSAT and APSIM, accurately predict crop growth stages and yields. Traditional research methods are limited by being site-specific, resource-intensive, and time-consuming. With changing climate and weather patterns, there is a need for computerized tools that can provide support for decision-making over many years. Crop simulation models are seen as crucial for future agricultural research and strategies to address climate change.