I completed two times Alien Isolation using the old mother VR mod with the G2 and already thought it was beautiful, but the more recent Grandmother VR mod (which I decided to try after the hype around Alien Isolation 2 mini-teaser) really takes the experience to a whole new, unbelievable, level.
A part from adding virtual hands, that makes easier and more fun to use weapons and the motion tracker, what really blown me away is the upgrade in visual quality, and even performance. Usability and stability were also adressed too. First of all, gone is the problem with the head not staying on its axis when rotating (that could easily bring to nausea). Also, they fixed every single visual glitch of the old version (like shadows being in one eye and not the other), and made the graphics setting work in VR too, to better tinker the experience to anyone's hardware.
They finally made the antialiasing work and this one alone makes the video quality so much better. If you can crank up the resolution enough, the temporal antialiasing makes the picture completely free from shimmering (that was almost immersion breaking in the old mod for me) and jagginess, with almost no artifacts, and really minimum effect on clarity on the Reverb G2, giving the amazing locations of the game an almost true to film quality. I never thought I could enjoy the game with such an amazing visual impact, unless having a 4090-5090 card and this alone convinced me to embark on my third run. This was really game changing for me... quite literally 😉
As for now, I'm playing the game on Windows 10, using WMR at 100% Steam resolution (around 3200 x 3200 per eye), all grapchis options maxed out except for shadows set on high and sampled at 2048mb. TAA activated and 1.3x in game VR rendering.
This is on a i9 12900k - 4080 super PC, with the G2 set at 60hz, which works really well with Alien Isolation (no flickering at all and perfectly smooth in almost all situation) and gives me a high overhead for the frametime.
The only issue I'm having now is that there seems no way to map the "Y" button on the Reverb G2 left controller, so I can't activate and recharge the flashlight unless doing it from the keyboard or the gamepad. I'm fine with that, but it'd be awesome if someone who maybe found a way to map the button could share here how to do it.
A part from that, If you're even remotely fan of this game, and you can reach the above settings, you should really try it 'cause it's mind blowing visually and the game is great as always but with an improved usability in VR. It's at the top of my favourite all time VR games, even if it's through a mod, and I say that after playing almost only VR for the last 10 years, on PC, Playstation VR1-2 and Quest 2-3 standalone.