From the 0.23 release post: An official linux driver exists for 3dconnextion devices, as well as an open source driver, so I'm a bit confused with the lack of linux support for this. Does KSP access 6dof devices through unity, and unity itself lacks support for these devices under linux? Official linux driver: http://www.3dconnexion.com/service/drivers.html, select "linux" in OS dropdown Open source driver: http://spacenav.sourceforge.net/