## 5 Conclusions  
The development of RelaxQuest represents a significant advancement in the creation of tools to promote relaxation and self-regulation. The integration of EEG control within the game and its focus on teaching relaxation skills offers an innovative approach to digital and immersive interventions. Furthermore, the game is a training platform and tool for data capture and analysis, enabling more accurate diagnostics.  
RelaxQuest provides a tailored approach that adapts to the specific needs of specialists, allowing for difficulty adjustments based on user progress. This platform enhances therapeutic intervention by integrating EEG signals with real-time virtual and physical applications focused on mental regulation. This innovative combination significantly improves user engagement and encourages a more significant commitment to therapeutic exercises.  
The results showed that participants could complete the game, indicating adequate control of their relaxation states and effectively detecting their voluntary blinking. Additionally, the game can provide relevant characteristic values that include essential metrics for measuring attention levels, such as omission errors, commission errors, response time, and response time deviation. These elements are crucial and could serve as potential support in the intervention for individuals with ADHD.  
One of the main limitations of this study is the absence of clinical validation of the game as a therapeutic tool for ADHD treatment. Achieving such validation would require a more significant number of trials involving specialists, which exceeds the resources and scope of this work. However, it is identified as a promising area for future research, potentially yielding significant and valuable outcomes.  
This study's main contribution was developing an EEG-based interactive game to measure attention metrics and promote self-regulation and relaxation. The project included creating the software, control devices, underlying algorithms, and physical integration, all developed by a multidisciplinary team. This innovation opens new opportunities for future research and broadens the potential applications of interactive tools in therapeutic and educational contexts.  
In future work, the goal is to collaborate with specialists in the field, such as psychologists, psychiatrists, occupational therapists, and neurologists, to establish a study group that will conduct the necessary tests with this game and analyze its impact on the intervention of people with ADHD.  
[PERSON], [PERSON] and [PERSON] participated in the conceptualization of the project, the processing of EEG signals, the methodological development, and the overall supervision of the project; [PERSON] and [PERSON] contributed to the generation and classification of critical values through statistical processes and data cleansing, as well as in the analysis of the results; [PERSON] and [PERSON] developed the application software, implemented the communication protocols between the processing algorithms, the video game, and the interactive physical development system, and conducted the corresponding tests of the study. All authors have read and agreed to the published version of the manuscript.  
This research received external funding for project development, with support from Universidad de Guadalajara (UDG), Consejo Estatal de Ciencia y Tecnologia de Jalisco (COECYJAL), and Proposals of the Jalisco Scientific Development Fund to Address Social Challenges 2023 (FODECJAL 2023) with funding number 10571-2023.  
Not applicable.  
Informed Consent Statement: Informed consent was obtained from all study participants.  
The original contributions presented in this study are included in the article. Further inquiries can be directed to the corresponding author.  
Thanks to [PERSON], [PERSON] and [PERSON] for their support in constructing the game's interactive physical development.  
The authors declare no conflicts of interest.