Unlike many Unreal Engine games, Lies of P stores its configuration files inside the installation folder, not in AppData.

Steam Version – File Location:

SteamLibrary\steamapps\common\Lies of P\LiesofP\Saved\Config\WindowsNoEditor\

This folder contains
GameUserSettings.ini
Engine.ini (⚠️ If missing, you must create it!)

If Engine.ini does not exist, create a new text file and name it: Engine.ini

Paste the following:

[SystemSettings]
r.ShadowQuality=5
r.Shadow.MaxResolution=8192
r.Shadow.MinResolution=4096
r.Shadow.TexelsPerPixel=8
r.Shadow.CSM.MaxCascades=4
r.Shadow.CSM.TransitionScale=2.0
r.Shadow.MaxCSMResolution=8192
r.ContactShadows=1

r.ViewDistanceScale=10
r.SkeletalMeshLODBias=-3
r.StaticMeshLODDistanceScale=0.1

r.TextureStreaming=0
r.MipMapLODBias=-2
r.Streaming.PoolSize=8192

r.VolumetricFog=1
r.VolumetricFog.GridPixelSize=4
r.VolumetricFog.GridSizeZ=256
r.VolumetricFog.HistoryWeight=0.99

r.SSR.Quality=4
r.SSR.Temporal=1
r.SSR.MaxRoughness=1.0
r.SSR.HalfResSceneColor=0
r.SSR.RaycastQuality=4
r.SSR.MaxSteps=1024
r.SSR.AdaptiveResolution=0
r.SSR.Jitter=0
r.SSR.NormalizeNormal=1

r.BloomQuality=5
r.MotionBlurQuality=4
r.AOQuality=4
r.AmbientOcclusionLevels=3
r.DepthOfFieldQuality=4
r.LensFlareQuality=3
r.PostProcessAAQuality=6

r.Tonemapper.Sharpen=1
r.Tonemapper.GrainQuantization=1

r.ScreenPercentage=150

Open:
SteamLibrary\steamapps\common\Lies of P\LiesofP\Saved\Config\WindowsNoEditor\GameUserSettings.ini

Paste the following:

[ScalabilityGroups]
sg.ResolutionQuality=100.000000
sg.ViewDistanceQuality=3
sg.AntiAliasingQuality=3
sg.ShadowQuality=3
sg.PostProcessQuality=3
sg.TextureQuality=3
sg.EffectsQuality=3
sg.FoliageQuality=3
sg.ShadingQuality=3
sg.AnisotropyQuality=3
sg.AtmosphereQuality=3
sg.AmbientOcclusionQuality=3
sg.ReflectionQuality=3

[/script/projectp.lgameusersettings]
r.RayTracing.Shadows=True
r.RayTracing.AmbientOcclusion=True
r.RayTracing.Reflections=True

CACAOEnabled=True
DLSSMode=Quality
DLSSSharpness=0.500000
bUseVSync=False
bUseDynamicResolution=False

After editing Engine.ini and GameUserSettings.ini, you MUST set the files to Read-Only.

If you skip this step, the game will overwrite your settings the next time it launches.

How to do it:

Right-click Engine.ini

Select Properties

Check Read-only

Click Apply

Repeat the same for GameUserSettings.ini

✔ Your tweaks are now locked and cannot be reset by the game.


🧪 Recommended Hardware

These settings are ideal for:

RTX 4070 / 4070 Ti / 4070 Ti SUPER
RTX 4080 / 4090
RX 7900 XT / XTX

If performance is too low, reduce:

r.ScreenPercentage=150

Try 140, 130, or 120.

You can expect:

✔ Ultra-sharp visuals
✔ Huge shadow resolution improvement
✔ Better SSR reflections
✔ High-quality fog and materials
✔ Zero texture pop-in
✔ A “next-gen” look without mods

You may notice several ray tracing parameters inside the configuration files (such as r.RayTracing.Reflections=True, RayTracingShadows=True, etc.).
These settings appear because Lies of P was developed on Unreal Engine 4.27, which includes built-in ray tracing keywords at the engine level.

However:

Lies of P does NOT include any ray tracing shaders or pipelines in its final build.

The developers completely disabled DXR support during compilation. This means the game contains:

No ray tracing shaders

No DXR acceleration structures

No ray tracing passes

No hardware RT pipeline

No RT fallback shaders

Because the ray tracing pipeline is not compiled into the executable, enabling .ini values cannot activate ray tracing.

❗ About “Ray Tracing Mods” — They Are All Fake

You may find mods or YouTube videos claiming to “unlock ray tracing” in Lies of P.
These are 100% fake.

Why?

Because you cannot enable ray tracing in a game that does not contain the RT pipeline.
Unreal Engine requires specific DXR shaders and rendering passes to be compiled into the final build, and Lies of P has none of them.

Therefore:

✔ The .ini ray tracing values exist
✘ But they do nothing
✘ And any “RT mod” is impossible
✘ Because the game lacks the required DXR pipeline entirely

❗ About “Ray Tracing Mods”

Those so-called ray tracing mods don’t enable real RT — the engine has no DXR pipelines. They only tweak SSR, shadows, fog, and post-processing values. All of these improvements are already applied (and in higher quality) by the parameters included in this guide, so the mods don’t provide anything beyond what you get here.