As this is a singleplayer game there won't be any problems regarding cheating and achievements can be unlocked using an external software anyway, this has been the case for many years and Valve probably won't do anything about it now. I especially need it to adjust my FOV as I am currently working on getting it to work in VorpX until native support is out. (If I am not mistaken it may even be possible to enable VR through the console?) I actually got it to sort of work by forcing a wider FOV using a very buggy hack in VorpX which sadly caused a ton of visual bugs and significantly impacted performance, video here (read warning in description for motion sickness): At least for VorpX users like me, changing the FOV in the game itself would remove the need to use resource intensive true 3D (it is required for the FOV hack) and would allow us to use fake 3D based on the depth buffer, it doesn't look as good but would still be fine until native support comes out. Thank you!