Here is the full list of all 69 Halcyon 6: Starbase Commander achievements.
Killed the Chruul Chimera.
Lost 10 Green Shirts in ground combat.
Rescue 30 colonies from a Chruul fleet.
Rescue 15 colonies from a Chruul fleet.
Did not ally with any of the pirate captains.
Defeated Admirax Zeb and his pirates.
Built 20 Base Rooms.
Recruit 10 officers.
Built a tier three ship.
Had an officer reach Level 10.
Destroyed 100 Chruul ships.
Made an ally of the Xlar-Yanthu.
Successfully cleared a Chruul spire.
Rescue 5 colonies from a Chruul fleet.
Decided to pay off the Yabbling debt for the next couple millennia.
Researched 20 techs.
Defeated the Chruul at New Terra.
Built a tier two ship.
Made an alliance with the pirate Savak.
Researched 10 techs.
Built 10 Base Rooms.
Have a ship reach rank four or higher.
Destroyed 25 Chruul ships.
Destroyed 25 pirate ships.
Had an officer reach Level 5.
Destroyed the Chruul Spawn Pit.
Have a ship reach rank three.
Researched 5 techs.
Destroyed 10 Chruul ships.
Have a ship reach rank two.
Destroyed 10 pirate ships.
Lose your first Green Shirt in ground combat.
Have a ship reach rank one.
Built 3 Base Rooms.
Had an officer reach Level 2.
Finished the tutorial.
Built a base room.
Built a tier one ship.
Lost 25 Green Shirts in ground combat.
Lost 50 Green Shirts in ground combat.
Lost 100 Green Shirts in ground combat.
Destroyed 100 pirate ships.
Made an ally of the Yabblings.
Made an enemy of the Yabblings.
Made an ally of the Korzan.
Made an enemy of the Korzan.
Made an ally of the Collective.
Made an enemy of the Collective.
Made an enemy of the Xlar-Yanthu.
Made an ally of the Voraash.
Made an enemy of the Voraash.
Lost 10 officers in the line of duty.
Made an alliance with the pirate Willa.
Made an alliance with the pirate Khut.
Built a tier four ship.
Built a tier five ship.
Killed the Chruul Desolator.
Killed the Chruul Crusher.
Killed the Chruul Behemoth.
Killed the Chruul Marauder.
Killed the Mothership.
Tried to give the station to pirates...seriously?
Successfully multiplied O'Brien.
Successfully beat the game on Cadet difficulty.
Successfully beat the game on Lieutenant difficulty.
Successfully beat the game on Commander difficulty.
Successfully beat the game on Captain difficulty.
Successfully beat the game on Admiral difficulty.
Successfully beat the game on Grand Admiral difficulty.