1,429 ratings
ISBS - Living Systems
File Size
3.500 MB
Aug 10, 2016 @ 9:03am
Jun 8, 2018 @ 2:34am
21 Change Notes ( view )

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ISBS - Living Systems

In 1 collection by Ankain
Improved Space Battles
5 items
Improved Space Battles Standalone - Living Systems adds life to your interstellar empire by populating it with hundreds of autonomous civilian vessels. Your systems will no longer feel empty and devoid of life as civilian vessels buzz around from planet to planet on their daily business.

Initial Compatibility Hotfix for 2.1. Sincere apologies for going MIA!

Civilian activity will grow along with your planets and economy. After your empire reaches a certain size, civilians will start to leave the system in search of new opportunities. Watch as your empire grows from a single starport to a living, thriving galactic hub!

It is HIGHLY RECOMMENDED that you use this mod in conjunction with Improved Space Battles [Graphics] to experience the mod as intended. This will greatly reduce the visual clutter caused by civilians.

To safely remove the mod, set civilian density to OFF and wait 1 year before disabling it.

Interstellar Civilian Fleet

Billboard Advertisement Ship

Civilian Vessels
  • Adds civilians to Stellaris. Civilians represent the general population of your empire and will automatically move around within your borders.
  • Adds over 40 different civilian ships, spawned at random to ensure each solar system looks different. Also includes Billboard advertisements within systems and interstellar fleets that will move around within your empire.
  • Highly customisable settings (through in-game policies) to ensure you can play with minimal performance impact. Read the policy tooltips!
  • It will take several years to populate your systems after enabling this mod.
General Description

Civilians fleets are created from planets with spaceports. Once a planet grows to 4 pops or more, civilians will start leaving the planet to explore the solar system. Civilian activity increases along with the planet population - larger planets will generate much more activity within a system.

As the planet develops, different ships such as billboard advertisements will begin to appear . When your empire grows beyond a certain size, civilians will also start leaving their original solar system and move around in your empire.


The biggest concern I have with this mod is performance. To ensure that it is able to run on a wide variety of systems, I have added several customisation options. These options are controlled through empire policies (though you have to use "free_policies" through the console to change the same option multiple times). The following options are available:

  • Civilian Density [Normal (default), Low, Off] : Controls the number of civilian ships spawned in player empires. Lower this to improve performance. Turning off civilian density will also disable the mod, allowing you to safely remove it after about a year of in-game time.
  • Intra-System Billboards [Enabled (default), Disabled]: Controls the spawning of billboard advertisement ships in-game. I was unsure if people might find the ads distracting so I added an option to turn it off.
  • Interstellar Ships [Enabled (default), Disabled]: Controls the spawning of Interstellar Civilian Fleets that move between systems.
  • AI - Living Systems [Off (default), Contact only, All]: Controls the spawning of civilians in AI empires. Contact only means civilians will only spawn in Empires you have contact with. All means civilians will spawn in all AI empires (pretty big performance hit late game).

    Feedback, suggestions or criticisms greatly appreciated!

HUGE thanks to draft3dd for the Russian Localisation!

Star Citizen images are taken from Star Citizen Wikia[]
Fallout 4 images are taken from Fallout 4 Wiki[]

For an improved Stellaris experience, use this mod along with the following ISB mods, which adds 5 new super-capital class ships, over 50 new technologies and 11 doomsday weapons - including planet destroying, star system destroying and anti-fleet super-weapons.




Popular Discussions View All (5)
Apr 11 @ 9:14pm
PINNED: Feedback / Suggestions / Ideas
Nov 2, 2018 @ 12:45pm
PINNED: Bug Reports
May 9, 2018 @ 10:17pm
PINNED: Billboard Advert and Ship Name Suggestions
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Nekcarb Jun 1 @ 11:45am 
FYI I am getting blank pop up messages continuously. Debugtooltip shows it as IBIS_living.27 and .26
LordOfLA May 14 @ 4:33am 
Just threw a patch up to make this work again: you still need to install this to use it.
TheOnlyMonroni May 13 @ 8:32pm 
Pitlos Tails May 13 @ 2:29pm 
doesnt work
Digitalcat May 13 @ 10:57am 
Can't believe this mod has actually died, it has survived so many updates.
trainman May 13 @ 6:38am 
until Anakin wakes up from his long slumber, use interstellar incorporated(come on Anakin I really want the planet sized billboards)
pingu May 12 @ 9:58pm 
No more updates guys
Political Fro May 12 @ 9:56pm 
Here I though it was one of my event mods but nope. This game creates the dreaded endless blank event popup
Sad but true.

Mod gave me daily two empty event pop ups with forced pause which made the game unplayable for me. Without the mod they are gone.

Thank you, Ankain, for the awesome. It really was fun while it lasted! :2018bestaward:
Joker May 12 @ 8:16am 
Looks like 2.7 finally catastrophically broke this mod. Too bad :/