Among the disciplines of science, technology, engineering, and math (STEM), much attention has been paid to the influences of math- and science-related learning contexts on students' STEM major selection. However, the technology and engineering learning contexts that are linked to STEM major selection have been overlooked. In response, a nationally representative sample of young adults in the US was used to investigate the relationship between technology-based activities and students' STEM major choices in 4-year postsecondary institutions. Multilevel structural equation modelling (ML-SEM) revealed that the frequent use of video or computer games was related strongly to students' STEM major selections in 4-year postsecondary institutions, after taking into account demographic characteristics and math achievement scores. The results provide evidence that promoting technology-rich learning environments is a significant factor in motivating students to pursue STEM careers.