Generated ARKs: How-To Guide

We'll be going over how to set up a procedurally generated map for your ARK server.

Here's a really rough guide to some of the PGARK settings you can edit in the UI:

ErosionIterations Number of droplets which are used to simulate erosion Erosion Iterations
GrassDensity Density of foliage in the grasslands biome Grasslands Grass Density
IslandBorderCurveExp The exponent used in the curve to smoothly interpolate between island and water floor Island Border Curve
JungleBiomeStart The height value at which the jungle biome start Jungle Biome Start
JungleGrassDensity Foliage density in the Jungle biome Jungle Grass Density
JungleTreeDensity Trees & rocks density in the jungle biome Jungle Tree Density
LandscapeRadius The radius of the landscape, outside of this radius it is water (to avoid cutting the landscape by the terrain border) Landscape Radius
MapSeed The seed used in the noise & random functions Map Seed
MaxSawnPointHeight The maximum height of land for a spawn point to be created Max Sawn Point Height
Mountain Height A multiplier for mountain height Mountain Height
MountainBiomeStart The height value at which the mountain biome starts Mountain Biome Start
MountainGrassDensity Foliage density in the mountain biome Mountain Grass Density
Mountains Frequency The frequency of the noise used to generate mountains Mountain Frequency
Mountains Slope How hard the transition is from land to mountain, the higher the value the smoother the transition (from 0 to 2) Mountain Slope
MountainsTreeDensity Density of trees and rocks in the mountain biome Mountain Tree Density
Regions 1, 2, 3
OceanFloorLevel The height value for the ocean floor (from -1 to WaterLevel) Ocean Flool Level
RedWoodGrassDensity Foliage density in the Redwood biome Redwood Grass Density
RedWoodTreeDensity Density of trees and rocks in the redwood biome Redwood Tree Density
RWBiomeSize The radius of the Redwood biome (from 0 to 1) Redwood Biome Size
RWForestBiomeLocation The location of the redwood biome (X,Y from 0 to 1) Redwood Biome Location
Shore Slope How hard the transition is from water floor to shore, the higher the value the smoother the transition (from 0 to 2) Shore Slope
ShoreTreeDensity Foliage density in the shore biome Shore Tree Density
SnowBiomeLocation The location of the snow biome (X,Y from 0 to 1) Snow Biome Location
SnowBiomeSize The radius of the snow biome (from 0 to 1) Snow Biome Size
SnowGrassDensity Foliage density in the snow biome Snow Grass Density
SnowMountainGrassDensity Foliage density in the snow mountain biome Snow Mountain Grass Density
SnowMountainsTreeDensity Density of trees and rocks in the snow mountain biome Snow Mountains Tree Density
SnowShoreTreeDensity Density of trees and rocks in the snow shore biome Snow Shore Tree Density
SnowTreeDensity Density of trees and rocks in the snow biome Snow Tree Density
TerrainScaleMultiplier X,Y,Z to scale the whole terrain Terrain Scale Multiplier
TreeDensity Density of trees and rocks in the grasslands biome Grasslands Tree Density
Turbulence Power The power of the turbulence function used to randomly perturb the coordinates input to the noise function, to add some realism to the noise Tubulence Power
UnderwaterObjectsDensity Object density in the underwater biome Underwater Objects Density
Water Frequency The frequency of the noise function used to generate land/water Water Frequency
WaterLevel The height value for the water surface, from (Ocean Floor level to 1) Water Level
ShorelineStartOffset The distance from the water that the shoreline begins. Raise this for a shore that goes farther up to the land.  
ShorelineThickness The overall width of the shore. Raise this along with ShorelineStartOffset to get a thicker, larger shore.  


The actual PGARK configuration is stored in your Game.ini file:
PGTerrainPropertiesString=MapSeed=412;LandscapeRadius=1.2;Water Frequency=11;Mountains Frequency=11;Mountains Slope=1.4;MountainsHeight=1.3;Turbulence Power=0.0125;Shore Slope=1.0;WaterLevel=-0.72;GrassDensity=1.0;JungleGrassDensity=0.02;ErosionIterations=200000;OceanFloorLevel=-1.0;SnowBiomeSize=0.3;RWBiomeSize=0.11;MountainBiomeStart=-0.55;MountainsTreeDensity=0.01;JungleBiomeStart=-0.65;IslandBorderCurveExp=4.0;MaxSawnPointHeight=0.1;SnowGrassDensity=0.25;MountainGrassDensity=0.05;SnowMountainGrassDensity=0.15;UnderwaterObjectsDensity=0.5;SnowMountainsTreeDensity=0.01;TreeDensity=0.003;JungleTreeDensity=0.66;RedWoodTreeDensity=0.35;SnowTreeDensity=1.0;RedwoodGrassDensity=0.1;ShoreTreeDensity=0.05;SnowShoreTreeDensity=0.025;DeepWaterBiomesDepth=-0.24;InlandWaterObjectsDensity=0.5;ShorelineStartOffset=0.04;ShorelineThickness=0.0045;TerrainScaleMultiplier=(X=1.0f,Y=1.0f,Z=1.0f);SnowBiomeLocation=(X=0.2f,Y=0.2f);RWForestBiomeLocation=(X=0.5f,Y=0.5f);NorthRegion1Start=(X=0.25f,Y=0.0f);NorthRegion1End=(X=0.416f,Y=0.5f);NorthRegion2Start=(X=0.416f,Y=0.0f);NorthRegion2End=(X=0.582f,Y=0.5f);NorthRegion3Start=(X=0.582f,Y=0.0f);NorthRegion3End=(X=0.75f,Y=0.0f);SouthRegion1Start=(X=0.25f,Y=0.5f);SouthRegion1End=(X=0.416f,Y=1.0f);SouthRegion2Start=(X=0.416f,Y=0.5f);SouthRegion2End=(X=0.582f,Y=1.0f);SouthRegion3Start=(X=0.582f,Y=0.5f);SouthRegion3End=(X=0.75f,Y=1.0f);EastRegion1Start=(X=0.75f,Y=0.0f);EastRegion1End=(X=1.0f,Y=0.333f);EastRegion2Start=(X=0.75f,Y=0.333f);EastRegion2End=(X=1.0f,Y=0.666f);EastRegion3Start=(X=0.75f,Y=0.666f);EastRegion3End=(X=1.0f,Y=1.0f);WestRegion1Start=(X=0.0f,Y=0.0f);WestRegion1End=(X=0.25f,Y=0.333f);WestRegion2Start=(X=0.0f,Y=0.333f);WestRegion2End=(X=0.25f,Y=0.666f);WestRegion3Start=(X=0.0f,Y=0.666f);WestRegion3End=(X=0.25f,Y=1.0f)

In your custom command line, adjust the map setting to use PGARK.

The server will automatically load whatever PGMapName you have set. So if you want to do a different Procedural ARK, change the PGMapName value to "YourPGARK2" and you'll get a different save data for that. You can revert back to any previous PGMapName to load the data of a previously saved PGARK. Note that if you have no existing save data for the PGMapName, it will use the PGTerrainPropertiesString to create the new ARK. But after you have save data for a PGMapName, the INI's PGTerrainPropertiesString will not take effect when loading that save data - instead, it will use whatever procedural settings are contained within the PGMapName's existing save data. In other words, to try out a new PGTerrainPropertiesString configuration, you either would need to delete your PGMapName's save data, or use a different PGMapName.
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