A computer-implemented method prevents physical interference between co-located users in virtual environments. The method includes identifying a first user associated with a first virtual reality (VR) system and a second user associated with a second VR system. The method also includes predicting a future movement of the first user to perform a first task in a primary virtual environment. The method further includes identifying, in response to the predicting the future movement of the first user, a first physical space needed for the first user. The method includes determining, in response to identifying the first physical space, a likely interference in a first physical location of the first user. The method also includes preventing the likely interference.