The purpose of this grounded theory study was to gain knowledge and understanding of how children with restricted mobility play in different play situations. The group investigated consisted of 10 children with restricted mobility, aged from 6 to 12 years, living in northern Sweden. In this study, the child with restricted mobility is defined as a child unable to move around without the aid of a wheelchair, walking trolley, crutches or other walking device. The children were interviewed about play and were observed in different play situations. The transcribed interviews and observations were analysed according to the constant comparative method of grounded theory described by Glaser and Strauss (1967). The analysis resulted in a model (How I play, core category) describing the child's relations in different play situations, the factors that gave rise to different types of play and the consequences of the play. The different types of play were: (A) play with friends - (a) interactive play and (b) onlooker play; (B) play alone; and (C) play with adults. Most play came to be placed in categories B and C, that is the children played mostly alone or with adults. The results were discussed on the basis of Mead's theory of identity development and Bronfenbrenner's theory of developmental ecology, that is how children's play influences their development when adults are so often present