This paper investigates potential criteria to identify visual scripting languages as embeddable within the domain of game development. We explore the criteria of embeddability for scripting languages and use them as the base line for the study. Then, we conduct a systematic review of GitHub repositories of visual scripting related projects to gather a data foundation for defining possible data points about embeddability of visual scripting languages. At the end, we conduct in depth interviews with game industry professionals supported by the Q-Methodology to investigate the views of them on the collected data from the systematic review. We could identify the most important themes for embeddability of visual scripting languages are performance related. Also, we identified the main differences between the criteria of embeddability for textual scripting languages and visual scripting languages are tooling related.