Rational Resources

Makes resource placement no longer random but fit to composition templates. Promotes cryofuel mods and planet pack to life support compatibility.

License: MIT

Game Version: 1.12.5

Downloads: 93,735

Author: JadeOfMaar

Mod Website: Forum Thread

Support this mod: Donate

Followers: 49

Rational Resources

Rational Resources is inspired by Realistic Atmospheres made by OhioBob and operates on the KSP Community Resource Pack or WBI Classic Stock. Rational Resources strips out the entirely random resource distributions and applies "distribution templates" (carefully configured groups of resource distributions) according to the logically expected class and composition of a body. While this mod is installed, un-configured bodies will have no resources at all except for a little Ore.

This mod enables planet makers to easily assign these distribution templates to their planet packs and skip the headaches of figuring out and writing the individual nodes themselves, and assorting all of their writings into several per-resource config files.

Active Resources

With some partial respect to realism, this mod drastically reduces the presence of the stock "Ore" resource in order to starve the use of this omnipotent and exceedingly abstracted resource, and to encourage the use of the distinct and specialized resources, and to encourage creation and use of the part mods that revolve around these. The exact resources used are named below as a heads-up to players:

Surface and Atmosphere resources * Ammonia, CarbonDioxide, ExoticMinerals, Gypsum, LqdHe3, Hydrates, Hydrogen, MetalOre, MetallicOre, Methane, Minerals, Nitrogen, Ore, Oxygen, RareMetals, Rock, Silicates, Substrate, Uraninite, Water.

Ocean resources * Carbon, ExoticMinerals, Gypsum, LqdAmmonia, LqdCO2, LqdMethane, LqdNitrogen, LqdOxygen, MetalOre, MetallicOre, Minerals, RareMetals, Rock, Water.

Star resources * Ammonia, Antimatter, Carbon Dioxide, LqdHe3, Hydrogen, LqdDeuterium, Methane, Nitrogen, Oxygen, XenonGas.


With omnipotent Ore being stripped of its Godhood, the following ISRU chains are proposed and encouraged for use by seasoned modders. Ore abundance is capped to 5% and its presence chance to 80%. It will be inconvenient for most players... but it will still be around.

Ore tanks will be changed via B9 Part Switch, to hold the cryogenic input resources. The intended ISRU chains that will be provided can be viewed in Issue #1.


Rational Resources purges resource distributions placed by most other mods. Untagged resource distributions are all deleted in the ModuleManager :FOR[zRationalResources] pass. The whitelisting mentioned below largely only applies to global/universal placements, and nearly no specific/per-planet placements in order to prevent unwanted high concentrations like Karbonite on Eve.

Whitelisted resources

  • Antimatter, ArgonGas, LqdHe3, Karborundum, LqdDeuterium, LqdHydrogen, XenonGas. (used by at least the Near Future Tech and Far Future Tech mods).
  • Karbonite, Karborundum.
  • Not Dirt (used only by USI MKS. Its absence should be but a minor hurdle to MKS players).

Easy and full compatibility is granted between a configured planet pack and the following mods:

  • Kerbalism
  • TAC Life Support
  • Near Future Tech suite
  • CryoTanks
  • Kerbal Atomics
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