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