The global population is increasing, and with limited agricultural space, there’s a pressing need to cultivate crops with traits such as high yield, biofortification, and tolerance to various biotic and abiotic stresses. Crop improvers aim to support impoverished populations by reducing food costs, enhancing food security, and augmenting the medicinal value of cultivated crops. Achieving these modifications in crops can be done through classical breeding or genetic modification. Classical breeding, although effective, is often time-consuming due to the limited availability of desired traits in wild varieties. As a result, plant breeders tend to favor genetic engineering, which offers new tools for rapid trait modification through gene integration or gene expression systems. Genetic engineering significantly reduces the time required for trait modification, and genes with desired traits from various life kingdoms can be readily isolated and integrated into target crops. We summarize crop improvement programs achieved through genetic engineering, targeting different traits such as biotic and abiotic stress tolerance, biofortification, increased yield. Additionally, it discusses the future role of genetically modified crops in humanity’s progress and their contribution to sustainable ecosystems and development.