Children's play contributes to their overall development. Yet, not all types of play have the same effects. On the contrary, nonsocial play has been found to be correlated with social, emotional and behavioural difficulties. The present study had a twofold aim. On the one hand it aimed at assessing Greek preschool children's social and nonsocial play, employing the Preschool Play Behaviour Scale, children's playfulness, employing Children's Playfulness Scale, and children's potential behaviour problems, with the Preschool Behaviour Questionnaire. On the other hand, it aimed at examining whether the types of play children engage in are predicted by their playfulness and by potential behaviour problems, as well as whether personal and family variables affect children's social and nonsocial play. Results suggest that the sample exhibits rather medium levels of nonsocial behaviours during play. Thus, correlation analysis showed that social and nonsocial types of play are predicted by playfulness components and that certain behavioural problems and personal and family characteristics are correlated with types of play. Implications are discussed and suggestions for future research are formulated.