The sPortal project was conducted by a group of Digital Media master students from the University of Bremen in 201213.

It developed an interactive approach for first person video game control via a natural user interface called ‘sPortal’. It introduces an improved full-body motion-based game experience, focusing on physical walking, running and jumping as input methods. sPortal facilitates physical exercising whilst playing computer games. It provides a new game experience based on customized levels created for the video game Portal 2 that are designed around specific exercises.

Concept video:

The approach supports walking-in-place (WIP) and suspended walking as input modalities. It also includes warm-up as well as training levels we created based on selected sequences of exercises.

Video summary of the different modalities for “physical locomotion” in virtual environments:

For more information, visit the external project page.


. Exercise My Game: Turning Off-The-Shelf Games into Exergames. Entertainment Computing – ICEC 2013, 2013.

PDF Project

. Sportal: A First-Person Videogame turned Exergame. Mensch Computer 2013 - Workshopband, 2013.


. Suspended Walking: A Physical Locomotion Interface for Virtual Reality. Entertainment Computing – ICEC 2013, 2013.

PDF Project