This study explores Universal Design for Learning (UDL) and Game-Based Learning (GBL) to promote the inclusion of secondary school students with intellectual disabilities. Through qualitative methods, including participant observation and post-workshop interviews, the impact of these methodologies was assessed on 31 students, including 5 with intellectual disabilities. The findings highlight how these methodologies enhance accessibility, motivation, and learning outcomes, developing narrative skills and fostering creativity. Challenges in curriculum integration and active student participation are also addressed. This study underscores the transformative potential of UDL and GBL in inclusive education, significantly improving the educational experience for students of varying abilities.