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