UNDECEMBER Optimization Guide

Published: Oct 19, 2022
Last Edit: Feb 10, 2025

439 Words, 2 Minutes.

Why an optimization guide?

While this game is cross-platform with mobile, it is optimized relatively well for newer hardware: you may struggle with older hardware. On most high-end computers, you won’t need to worry about optimization. Everything will work as you’d hope. For those who need or want more performance: This guide is for you.

Emulation has existed for the mobile port of this game for some time, so it coming to PC isn’t anything new.

This guide aims to help you get more out of your PC, assuming it’s on the lower end.

Optimizing your PC

I have created multiple guides to get the most out of your PC. Make sure to follow them or other directions for even more performance. You only need to do this once, and it helps literally every game on your PC.

Optimizing Undecember

The easiest way to optimize the game is to use the preset below. It has good settings for much higher performance with almost no visual impact. Press Start + R to bring up the Run Dialog. Enter %LocalAppData%/RzGame/Saved/Config/WindowsNoEditor and hit Enter.

While there are a few settings in-game, there is almost no customization. As the game is an Unreal Engine game, many fine-tuned settings from other similar games can be applied here.

I have collected a few and compiled them into one simple long list.

Open Engine.ini, scroll to the very end, and paste the following into it:

Engine.ini

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
[SystemSettings]
foliage.DensityScale=1.0
foliage.ditheredLOD=0
foliage.forcelod=2
foliage.LODDistanceScale=4
foliage.MaxOcclusionQueriesPerComponent=128
foliage.MinimumScreenSize=0.00000001
foliage.MinInstancesPerOcclusionQuery=65536
grass.CullDistanceScale=4
grass.DensityScale=1.0
grass.DisableDynamicShadows=1
r.AllowLandscapeShadows=1
r.AmbientOcclusionLevels=2
r.AmbientOcclusionMaxQuality=100
r.AmbientOcclusionRadiusScale=0.03
r.bForceCPUAccessToGPUSkinVerts=1
r.BloomQuality=3
r.Color.Mid=0.35
r.DefaultFeature.AntiAliasing=2
r.DefaultFeature.MotionBlur=0
r.DepthOfFieldQuality=0
r.DetailMode=2
r.DistanceFieldShadowing=1
r.EmitterSpawnRateScale=2.0
r.ExcessiveQualityLightMaps=1
r.EyeAdaptationQuality=3
r.FastBlurThreshold=0
r.FastVRam.EyeAdaptation=1
r.Fog=1
r.FogDensity=0.02
r.FogStartDistance=6
r.HighQualityLightMaps=1
r.HLOD.DistanceScale=3
r.HLOD=1
r.LandscapeLOD0DistributionScale=3
r.LandscapeLODBias=-3
r.LandscapeLODDistributionScale=3
r.LensFlareQuality=3
r.LightFunctionQuality=1
r.MaterialQualityLevel=1
r.MaterialsQualityStage=1
r.MaxAnisotropy=16
r.MaxQualityMode=1
r.MipMapLODBias=0
r.MotionBlur.Max=0
r.MotionBlurQuality=0
r.PostProcessAAQuality=6
r.RefractionQuality=3
r.SceneColorFringe.Max=0
r.SceneColorFringeQuality=0
r.ScreenPercentage=100
r.Shadow.AllowForegroundShadows=1
r.Shadow.CSM.MaxCascades=10
r.Shadow.CSM.TransitionScale=1.0
r.Shadow.CSMDepthBias=20
r.Shadow.DistanceScale=5.0
r.Shadow.EnableForegroundShadows=1
r.Shadow.FadeResolution=0
r.Shadow.MaxDecision=4096
r.Shadow.MaxPointCasters=1
r.Shadow.MaxResolution=4096
r.Shadow.PerObject=1
r.Shadow.PreShadowResolutionFactor=1.0
r.Shadow.RadiusThreshold=0.01
r.ShadowQuality=4
r.SkeletalMeshLODBias=-3
r.SkeletalMeshLODRadiusScale=0.01
r.SkyLightingQuality=1
r.SSGI.Quality=4
r.SSR.MaxRoughness=1
r.SSR.Quality=4
r.SSS.SampleSet=2
r.SSS.Scale=1
r.StaticMeshLODDistanceScale=0.01
r.Streaming.Boost=1
r.TemporalAACatmullRom=1
r.TemporalAACurrentFrameWeight=0.12
r.TemporalAAFilterSize=1.0
r.TemporalAAPauseCorrect=1
r.TemporalAASamples=32
r.Tonemapper.GrainQuantization=0
r.Tonemapper.Quality=3
r.TonemapperFilm=1
r.TonemapperGamma=2.6
r.TonemapperMovie=1
r.TrueSkyQuality=1
r.ViewDistance=5
r.ViewDistanceScale=5

[/script/engine.userinterfacesettings]
ApplicationScale=0.75
SoftwareScale=0.75