Play, in particular sex-typical play, is important for affective, cognitive, and social development. There is limited research on sex-typical play in autistic children. The few prior studies on this topic relied heavily on reports or involvement of caregivers/parents, did not assess cognitive abilities, and examined a limited number of sex-typical play outcomes. The present study examined sex-typical play in 120 children without intellectual disability (30 autistic boys, 35 non-autistic boys, 20 autistic girls, 35 non-autistic girls) aged 4-11 years. Vocabulary and abstract reasoning were also assessed. Consistently across all five play measures (parent-reported composite play, self-reported activity preferences, self-reported toy preferences, self-reported playmate preferences, and observed toy play), there were medium or large, and mostly significant, differences between autistic and non-autistic boys, suggesting less male-typical/more female-typical play in autistic boys. Autistic and non-autistic boys did not differ in vocabulary, abstract reasoning, or age. No consistent, clear, or significant patterns emerged in comparisons of autistic and non-autistic girls. The more non-conforming play in autistic boys concurs with certain prior findings suggesting that the autistic community is not confined to social norms and shows increased gender diversity. The potential link between the unaltered play in autistic girls and camouflaging is considered.