454 ratings
ISBS - Living Systems
File Size
3.503 MB
Aug 10, 2016 @ 9:03am
Dec 6, 2016 @ 2:03am
11 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.

This mod is 1.4 compatible. Let me know if you run into any issues.

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 (4)
Feb 2 @ 12:42pm
PINNED: Feedback / Suggestions / Ideas
Feb 2 @ 12:06pm
PINNED: Bug Reports
Feb 24 @ 7:20pm
PINNED: Billboard Advert and Ship Name Suggestions
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Mack-Daddy 21 hours ago 
its like looking at a 3d version of distant worlds, this mod is awesome!
Ankain  [author] Mar 17 @ 6:15pm 
@voidster Unfortunately there is only one low density setting right now. - though I think it should have minimal impact on performance.

@Arkengate Under empire policies.
Arkengate Mar 8 @ 9:35am 
Where do I find the setting to turn off civilian density?
voidster Mar 7 @ 8:14pm 
I love this mod, it adds so much er "life" to my empires, however, i find that im having to run a much smaller star count to compensate for all the ships generated. My machine isnt the best out there. Is there a command or way to reduce the spawning even further? Perhaps 1/10th instead of just 1/3?
AdeptusAstarte Feb 28 @ 1:34pm 
the options for customization is not showing up in the policy area?
AethGorr Feb 25 @ 2:56am 
@Ankain, Thanks, will try
Ankain  [author] Feb 25 @ 1:49am 
@AethGorr You need to set civilian density to OFF and wait 1 year before you can remove the mod safely.
DragonTemplar4 Feb 19 @ 7:00pm 
I kinda wish that the civilian ships would jump between systems that have colonies rather than sticking to a single system, It starts to get rather cluttered the more your pop grows espeically in your capital system...
swbase Feb 13 @ 7:28pm 
In the early stages of the game is very much blocks the movement of fleets with wormhole technology.