The purpose of this study is to investigate how to improve middle school 6th-grade students' skill of associating mathematics with real life through Realistic Mathematics Education, which was reinforced with educational games, to determine the problems possible to be encountered in practice and how to solve these problems in details. This study, designed as action research, was carried out in mathematics lessons with 25 sixth-grade students studying in the first and second semesters of the 2018-2019 academic year. The qualitative data of the research were collected through semi-structured interviews, camera recordings related to the application process, a structured student diary, a researcher diary, and reflective assessment forms. The quantitative data of the study were collected with worksheets, educational games, performance projects, and the Diagnostic Form for Students' Skill of Associating Mathematics with Real Life developed by the researchers and performed twice before and after the application. According to the results, Realistic Mathematics Education reinforced with educational games was efficient in increasing the skill of associating mathematics with real life.