Objectives: to validate the online game Papo Reto to approach sexuality in adolescence, according to the categories: Technical and esthetic aspects; Dynamics; Playfulness; Content; Pedagogical potential. Methods: a descriptive quantitative study with online collection instrument, composed of the 5 categories with 85 variables. Twelve judges participated in the assessment. Data treatment used Stata 14.0, and analysis used Content Validity Index (CVI) and Cronbach’s Alpha (α). Results: the α coefficient showed very high reliability (α=0.95) for the Playfulness category, and high reliability (α≥ 0.75) for the others. Of the 85 variables, 84 were validated by at least one of the judges, with CVI=1. Although the game has been validated in 5 categories, variations in the Alpha (α) and CVI coefficients proved to be fundamental for new productions. Conclusions: the diversity of the methods adopted contributed to the reliability of the result. The analyzed variables expressed the adequacy of the game.