To address the need to make accessible and culturally responsive computational tools, we take a critical perspective toward a specific programming environment to illustrate the ways in which technology affords and constrains Indigenous youths’ design agency. Most efforts to design culturally responsive computational tools redesign surface features, yet the deeper structural design remains largely intact. We share our work from an ongoing design-based research study and present two cases to illustrate how RPG Maker shapes the narratives Indigenous youth are able to share. Findings offer insights to how technology shapes youths’ forms of expression and how youth navigate representing culture in digital spaces. We discuss insights for how to integrate cultural practices in future designs of culturally responsive computational tools.