Guilli’s Planet Modifiers And Features 3.6 LEGACY

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Author: Guilliman

Last revision: 14 Mar, 2023 at 16:58 UTC

File size: 0 B

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Guilli’s Planet Modifiers – this is the LEGACY VERSION 3.6

For the latest version see:

What does this mod add?

Planet Modifiers and Features (deposits)

  • 300+ Unique planet modifiers for planets, habitats, ringworlds, machine worlds, hive worlds, relic worlds, and so on!
  • Secret and rare precursor planet modifiers.
  • Unique and powerful Fallen Empire planet modifiers, only found on their planets!
  • 100+ Planetary features with unique graphics, linked to planet modifiers or events
  • Several cool new blockers
  • Planet modifiers also appear on Barren, Frozen, Toxic and Molten worlds and Gas Giants. As well as asteroids, suns, and other celestial bodies.
  • Several New planet modifier border colours! (grey, blue, purple, pink,..)
  • 28 new reclics
  • tons of exploration, colony other events!

Starting Menu

  • A handy starting menu allowing you to pick just how many planet modifiers planets should have and has options to turn parts of the mod off.

New policy: Surveying Policy

  • Set how thorough your science ships survey worlds


  • Unique leviathan "The living Planet" with a special reward. Leviathan DLC required for this to show up.
  • Several new anomaly events.
  • 50+ new "discovery!" events. Small event telling you discovered something interesting!
  • 40+ new colony events based on planet modifiers found on the world.
  • Unique capital event chains based on your ethics choice rewarding a capital planet modifier. (to be redone)
  • New planet interactions with the crisis events. Bombarding infested worlds or worlds bombarded by the unbidden can turn into molten/frozen/barren/nuked worlds. Each can then roll new planet modifiers fitting them.


  • 28 new relics can be found from exploration
  • Most relics have matching Casus Belli and wargoals and matching war names
  • The AI really wants your relics, fight then for it! And steal theirs in the process!

Armies, Buildings, Components, Ships, Traits

  • Several new armies that can be recruited from planets with specific planet modifiers.
  • Several new buildings can be unlocked providing you discover how
  • 2 unique components can be unlocked from discoveries
  • 2 unique event ships van be gained from discovering rare worlds
  • Several new traits were added. They can be unlocked from discoveries or gained from events


  • Shielded world graphics for specific planet modifiers
  • Solar systems are spiced up with debris in precursor systems
  • A unique shipyard star model for precursor shipyards (not a megastructure)

Wondrous Planets

How it works:
At the start of the game, up to one planet of each planet type will be chosen as a wondrous planet. This planet will have unique planetary features on it that provide very large bonuses! Once you have surveyed and discovered a planet like this (or the AI has), the planet name will change to a different colour.

Discovery! Events

How it works:
When your science ships survey a planet and discover a special modifier on that planet an event will pop up telling you about it. This only happens the first time you discover this modifier. You will have the option to spend some influence to tell your scientist to take another look for extra rewards..

Colony Events

How it works:
Over 40 mini colony events have been added that can trigger after you have colonized a world with this mod’s modifiers. Several capital event chains to do with your ethic choices have also been added.

Valuable World Modifier

How it works:
Some dead worlds (barren, frozen, etc) that have specific modifiers will also have a ‘valuable world’ modifier. This modifier allows terraforming of this world with the right technologies.

Terraforming Interaction

How it works:

  • Terraforming cleans up planet modifiers and has a chance to roll new good ones
    When you terraform a planet the following will happen:
  • Most bad negative modifiers will be removed (where it makes sense)
  • Precursor modifiers will NOT be removed
  • Planet wonders will be removed.
  • The newly terraformed planet has a chance to roll new flavour or positive modifiers. Flavour modifiers have a grey border and are just there for story/lore or roleplay.
  • Turning a planet into a Machine World will remove most modifiers and roll unique machine world modifiers.

Crisis Interaction
  • Crisis that purge or change planets will have improved interactions with planet modifiers.
  • They will remove and/or roll new modifiers as well.
Want to help?

I want to expand this mod with more planet modifiers. Feel free to leave suggestions in the comments or the suggestion post! Thank you very much!

Thank You

A huge thank you to everyone who tried out my mod, is playing my mod and/or has helped me get it this far! Without you all this would have never been possible.

Special thanks to the following people for suggestions and feedback!

A huge and special thanks to Heather H. for proofreading all the English localization and providing corrections and improvements as well as unique story content. Thank you very much!
-Waesche for the cool colour name trick
Special thanks to the original creators of all the art.