Alien: Rogue Incursion VR

Alien: Rogue Incursion VR

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Min Spec Performance Guide (Updated - Feb 12th)
By cybersyn
Basic guide for getting playable performance in Alien: Rogue Incursion for people with low spec hardware.
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Min Spec Performance Guide (Quest 3 with Virtual Desktop)
Update: I upgraded my CPU and RAM to a Ryzen 7 5700X3D and 32GB DDR4 (3200Mhz). Game runs and looks great now. I'm updating this guide because I found a better balance of settings during my current playthrough after the latest update.

My specs: Ryzen 5 5600X, RTX 2080S and 16GB DDR4

Why Alien: Rogue Incursion is so demanding

The game isn't actually unoptimized, it just uses a very demanding renderer and has a lot of demanding visual effects.

Most VR games use the Forward Renderer which is lightweight and better suited for VR however this game uses the Deferred Renderer, which is what most modern 2D games use, because it allows for a lot more atmospheric effects (smoke, fog etc). It's basically an artistic choice with a high performance cost. You can not get the same atmosphere with a Forward Renderer.

As a result of this, the game is "pixel bound" and you'll get the best performance by decreasing your resolution or lowering your refresh rate or both. Alternatively, use SSW (Virtual Desktop's superior version of ASW) which is what I recommend in this guide.




Tips for Best Performance and Visuals (Updated)

After testing this thoroughly, I'm convinced SSW at 120hz is the best choice since the game was clearly designed for 60hz with reprojection on the PSVR2 and doesn't scale to 90hz efficiently (unless you have a beast of a GPU).

If you can't maintain 72hz without turning the settings down, you've come to the right place. If you can, you still might find that this is a better experience.

SSW in Virtual Desktop is much better than ASW for Meta and if you run it at 120hz, it's very smooth with minimal artifacting. Also, this way, you get to use High and Epic settings and you get a much more consistent framerate with very few dips.

* I don't recommend SSW at 90hz because the artifacts and latency are much more noticeable. You need to use 120hz and it needs to be Always Enabled.

* All of these steps are important. Follow this guide exactly then tweak settings like Shadows and Shaders if you have the headroom to increase them or if you need more performance.

  1. In the desktop app, set Virtual Desktop to use the VDXR runtime in the OpenXR Runtime dropdown.
  2. Select the HEVC 10-bit encoder with Adaptive quantization set to ON. Same performance (for me) but better colours and less visual noise for VD Medium's preset.
  3. In the Virtual Desktop Quest app, choose the Medium preset (unless you have a better GPU than me).
  4. Set the Refresh Rate to 120hz (it will be 60hz reprojected)
  5. Set SSW to Always Enabled, not Automatic (or else you get stutters)
  6. In the game's graphics settings, set the resolution to 1.0
  7. Set TAA to ON (see below)
  8. Set Dynamic Resolution to OFF
  9. Set Anti-Aliasing to Epic
  10. Set Shadows and Shaders to High (Shadows is the most demanding setting but Shaders is also demanding so start at High and turn them down if you absolutely have to)
  11. Set Anti-Aliasing, Textures and Post-processing to Epic (if you have a 2080S or above)
  12. Other settings can be set to High
  13. In the game's other settings menu, turn weapon weight OFF because it makes the game feel more responsive
  14. In Windows, turn HAGS on or off (see below)

Reference images


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FXAA vs TAA

A lot of the visual effects were designed with TAA in mind (TAA is used on the PSVR 2) so while FXAA looks sharper, it makes the image noisier due to all the aliasing and causes issues with effects like snowfall. TAA is the default for a reason.

Hardware-Accelerated GPU Scheduling

Experiment with turning HAGS (hardware-accelerated GPU scheduling) on and off and see how it affects your performance. In Windows, go to Settings > Display > Graphics > Default Graphics Settings.

The general advice is that you should turn it off for VR, however it has matured quite a lot and it actually improves performance significantly in my case. You should try the game with it on and with it off and monitor your frame rate and latency using the VD overlay.
8 Comments
Frankie79 3 Oct @ 9:16am 
i've a 💩💩 PC(RTX 2060 , i7) and all in medium settings(shadows and post processing included), TAA, 80% res, and some OTT tweaks, i can play it smoothly no lag, no stutter, but i need to be honest i took a while to set it up...
cybersyn  [author] 22 Feb @ 2:16pm 
Hey JeFi2, I'm not sure what your specs are but yeah, this solution isn't going to be ideal if you can't maintain 60hz all the time. Hopefully the devs release a performance patch since I'd rather just run the game at 72hz or 80hz, however the only way I can do that is by turning settings down farther than I'd like.

Did you turn on video buffering in VD? That's the only other thing I can think of.
JeFi2 22 Feb @ 10:36am 
This didn't really work out for me. Even at 120 FPS, SSW feels pretty laggy and you can see the distortions from the interpolated frames everywhere which was quite distracting. It also seems to introduce some stutters, even with SSW always active.
Instead, I went for 90FPS without SSW and I set the dynamic resolution to on and 50%. This resulted in a much smoother experience.
cybersyn  [author] 14 Feb @ 9:32pm 
Hey alegse, I think that's a bug, you might have to use a custom Steam binding with the G2 to get the menu button working but you should be able to open the menu in-game. I haven't used a G2 myself but I think you could also try setting OpenXR to active in Meta Quest Link then running the game from Steam from your desktop to launch in Quest Link.
alegse 14 Feb @ 8:58pm 
Great Guide! I have Reverb G2 so resolution is quite high. I struggle even with a 4080 Super. TAA and lower visual settings is good (still looks pretty great compared to Quest games). Is there a way to change the settings while playing? Seems like the graphics menu is only available before you begin play. How to get to the main menu during game?
phylum sinter 13 Feb @ 6:51am 
I applaud this effort! Even with my still-smellin' like new PC w/ i7-14700F, 64gb ram, game on samsung 990 Pro & Win11 Home Build 26100 (OS on Crucial SSD).

The game on my system does struggle to reach 90hz with a Q3 running v72 OS, using a wireless network exclusive for VR (Puppis S1 router), usually 25-35ms latency.

Was able to reach 90hz yesterday after another hotfix for the game installed, messing with the in-game settings while freezing VD settings at Godlike, HEVC 10-bit, 150mbps streaming. Automatic XR settings. Reached a pretty great image quality and smooth refresh while still using mostly high and Epic levels in-game.

Will report back after testing these suggestions too, notably so far i'm trying to avoid needing SSW/ASW if i can help it. Would like 90hz performance and hope that's steadily achieved without dropping everything to low.
theailer 3 Jan @ 8:36am 
This made it really enjoyable on my system as well.
Thanks!
pjtala 27 Dec, 2024 @ 4:25am 
Great guide and perfect for many people, in my case your second way is my real way of playing the latest games and I see that you understand VD and know how to use it correctly congratulations for the effort