From what we have found out, various members of the community are working on adapting Doom 3 to the Oculus Rift DK2, both the classic version and the most recent BFG Edition. There will even be a version similar to the Half-Life 2 VR mod with support for Razer Hydra and absolute positioning for weapons. At the moment, it is already possible to download the first playable version of the standard Doom 3.
The version we are talking about here is not compatible with Razer Hydra and works in a similar way to Valve’s implementation for Half-Life 2, or the version of Quake 2 that circulated a few weeks ago for DK2: the crosshairs have been disassociated from the movement, as we can see in this video.
You can download a fully functional executable here. To run it, you have to load it by adding the commands +set com_allowConsole 1 +set vr_enableOculusRiftRendering 1 +set si_pure 0 to the Doom 3 executable (although it has a BAT that will do it automatically). There are still minor problems with the post-processing effects, which can be different in each eye, and from what the author says the absolute positioning still doesn’t work, but at least it’s already the first public version of the game and the speed is very good.