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The community update for Galactic Civilization II is available as an opt-in on Steam and GOG. For more information read here.

  • Vastly improved AI research
  • Vastly improved AI planetary management
  • Re-balanced weapons
  • Re-balanced defenses
  • Re-balanced abilities
  • Re-balanced techtrade
  • Lore friendly new tech and improvement descriptions
  • Better custom races.
  • A 100+ page manual written from scratch
  • Fully working AI's thanks to an update to the EXE
Patch 1.5, improves diplomacy and other things, for Galactic Civilizations III is available for opt-in on Steam and GOG, maybe, don't know how patches work there. Changelog here. Also a new DLC, Precursor Worlds, will be released soon, it will include Precursor Planets, new anomalies and colony events. Pictures here.