 The study aimed to describe the development and usability of the secret trail of moon, TSTM, a virtual reality serious video game designed for cognitive training related to core ADHD symptoms and executive dysfunction in children and adolescents with ADHD. The results showed that 86% of participants liked playing TSTM and wanted to continue playing it, while 14% reported experiencing dizziness or virtual reality motion sickness. No statistically significant differences were found between the ADHD combined subtype and inattentive subtype or frequent and infrequent video game players. The study suggests that serious video games may complement the current multimodal approach for treating ADHD. This article was authored by Maria Rodrigo-Yanguas, Marina Martin-Mortinos, Angela Menendez-Garcia, and others.