Galactic Civilization III v2.3 (Opt-in 6/13)

Posted on Tuesday, June 13, 2017


We have brought over many fixes from Crusade to the base game. Please read below for details. 


To enable the patch, please do the following:

  • Select Galactic Civilizations III in your Steam Library list
  • Right-click and select Properties
  •  Select the BETAS tab
  •  From the dropdown, select "opt-in"  and click Close (if you don't see this option, restart Steam)

Steam should pull down the changed files; if you ever want to go back, do the same as above but select default


Please note: The opt-in is an early preview of the next update and you might experience bugs or other issues. We encourage players who try the opt-in to report any issues to the support forum or via support ticket so we can address them.


For a list of changes available in the Crusade opt-in, please read here:



  • Player objects calculations moved into the AI thread (performance)
  • Fixed bug that caused AI to potentially get "free credits" due to messaging being disabled
  • Pirate AI is more aggressive.
  • AI better at defending planets (Crusade tech)
  • AI targeting system updated to near Crusade level
  • AI keeps track of its fleet inventory, this is used to make better decisions on what to Build
  • AI more aggressive in using transports
  • Lots and lots of improvements to the AI's ability to target enemies intelligently
  • Smarter AI behavior when it comes to asking for money and such
  • AI smarter about what ships it wants to build and when
  • Much better AI trading system for putting together deals 
  • AI trading changed to be a vector so that it can offer multiple trade offers (Crusade feature)
  • AI evaluates its money much better
  • AI much stingier on ship Trading
  • AI much smarter about declaring war on players when someone tries to bribe them to
  • AI much better about going to war against those who are at war with its ally
  • AI more reactive to parking fleets near its territory
  • AI war mongering set up
  • Smart auto credit bidder added to the trade window to make trading easier. 
  • Greater variance in flavor text in conversations



  • Increased the amount of stars, planets and habitable planets when common is chosen
  • Planetary Improvement cost generally made higher.
  • Production points on colonies and capital planet default to a higher value
  • Reduced manufacturing cost but increased mass of special components so that the ramp up time isn't so severe.
  • Added new "Complete Tech" event.



  • Various crash issues fixed that were due to custom ship designs / ship mods
  • Lots and lots of potential crash issues resolved due to better checking of custom/mod data
  • Crash fixes from Crusade
  • Brought over Crusade optimization for stat updating while unit moving