Despite a growing interest of value capture in the phenomenon of open innovation (OI), empirical evidence documenting the link between new product development (NPD), OI practices, and market performance is scarce. Drawing on organizational learning, NPD, and OI literature stream, this paper conceptualizes a framework in which open product innovation (OPI) practices are disentangled into two types: pre-launch OPI (which occurs before a new product is launched) and post-launch OPI (which occurs after a new product is launched). Specific types of OPI practices – technology in-licensing (i.e., pre-launch OPI) and product upgrades (i.e., post-launch OPI) – during the NPD process are expected to influence market performance of new products independently and interactively. This paper empirically analyzes the secondary data related to product innovation and market performance of 536 mobile games that were developed and launched by 265 local and global firms in South Korea. The results support hypotheses and indicate that NPD projects that engage in technology in-licensing by both local and global firms lead to better market performance than NPD projects that do not engage in. Furthermore, the more product upgrades that NPD projects employ during product life cycle, the better market performance. Finally, the involvement of active product upgrades strengthens market performance of global NPD projects that develop new products internally. The results regarding the role of pre-launch and post-launch OPI mechanisms contribute to research on OI and NPD, and also inform managers as to what product innovation practices are recommended to improve market performance of NPD projects.