v4.21 Brings AI and Map Density Updates

[h2]4.21 also brings a number of long requested balance updates.[/h2]

What players will probably notice the most, however is how much better the AI is at putting together fair trade offers. This may only merit a single line in the change log but represented the bulk of the engineering time for this update.



[h2]Changelog[/h2]
[h3]All versions:[/h3]

• AI is now significantly better at putting together trade offers with the player (ones likely to be acceptable to the player).
  
• Asteroid likelihood in a system increased from 20% to 25%
  
• Ion storm spawn likelyhood an a sector increased from 50% to 65%
  

[h3]Retribution:[/h3]

• Minimum star distanced reduced from 7 parsecs to 5 parsecs
  
• Approval requirement for content reduced from 45% to 40%
  
• Civilization capital raw resource production increased from +2 to +3
  
• As hardware continues to become more powerful we have bumped up the number of objects a map can spawn:
  
• Small galaxy base object spawn increased from 300 to 400 (this is how many planets, stars, etc. are allowed)
  
• Medium galaxy base object spawn increased from 500 to 700 (this is how many planets, stars, etc. are allowed)
  
• Large galaxy base object spawn increased from 750 to 900 (this is how many planets, stars, etc. are allowed)
  
• Huge galaxy base object spawn increased from 900 to 1000 (this is how many planets, stars, etc. are allowed)
  
• Gigantic galaxy base object spawn increased from 1000 to 1200 (this is how many planets, stars, etc. are allowed)
  
• Excessive galaxy base object spawn increased from 1400 to 1500 (this is how many planets, stars, etc. are allowed)
  
• Insane galaxy base object spawn increased from 1500 to 1600 (this is how many planets, stars, etc. are allowed)
  
• AI weighting of technologies improved to ensure the AI researches the updated tech tree more effectively
  
• Ministry of Alien Affairs now gives a +0.25 diplomacy bonus
  
• Interstellar Tourism prereq changed from requiring Immigration to ministry of alien affairs to make available earlier in the game.
  
• Supply ship manufacturing cost reduced from 200 to 125
  
• Early game music tracks updated