https://wccftech.com/hands-on-3drudder-playstation-vr-ces-2019/

PlayStation VR has largely been a stationary affair. Whether you game standing up or sitting down, there’s not much going on in terms of movement. However, the foot-powered rudder from 3dRudder aims to turn navigation into a full-body activity. By putting your feet to use in the game, the potentials for freeing up your hands to focus on aiming your weapon in a virtual battlefield are numerous in kind.

The 3dRudder for PlayStation VR is rather simple and unimposing, sharing a very similar frame to that of a rudder or balance board one might stick under their desk to keep their feet active when operating a computer for eight hours a day. Instead of a completely flat base, two footpads can be attached where the player rests their feet to act as guides to keep their feet in position, something I found to be quite helpful when trying to turn around in my demo (these foot pads are normally an optional accessory to the 3dRudder for PC, so this can help to justify the $20 premium for the PlayStation variant). Of course, there’s just a single USB cable to connect the 3dRudder for PlayStation VR up to the PlayStation 4 with no wireless configuration available as of yet.