The effects of egocentric and allocentric representations on presence and perceived realism: Tested in stereoscopic 3D games

► We investigate the influence of stereoscopic 3D system features on presence. ► System features includes manipulating and expressing 3D objects and background. ► Spatial representations and perceived realism are important mediating variables. ► Expression system features are more important than manipulation system features. ► Egocentric representation is more important than allocentric representation.