Fulldome image projection systems are adapted to facilitate projection of images onto a dome screen to create an immersive virtual environment. According to one example, an image projection system may include a fulldome screen formed at least substantially as a spherical cap. A plurality of sidewall projectors may be positioned within the screen and spaced from each other in a generally circular shape. The plurality of sidewall projectors may be oriented in an angular projection configuration. At least one zenith projector may be oriented to project images toward at least a portion of a zenith of the fulldome screen. Other aspects, embodiments, and features are also included.