Here is the full list of all 24 Galactic Campaign achievements.
You have signed 3 agreements.
You have used the 4 advisors!
Honor and Glory to Berech Chancellor
Honor and Glory to Elgir Chancellor
Honor and Glory to Xseen Chancellor
Honor and Glory to the Human Chancellor
Honor and Glory to Nole Chancellor
Honor and Glory to Abalus Chancellor
You won with the 6 leaders.
Technical problem
You managed to make one of your opponent's loses 15 points of public opinion on a planet in not recommended ways.
You managed to make an opponent loses 5 days.
You managed to make one of your opponent's loses 5 points of public opinion on each planet of one of the sectors in not recommended ways.
You managed to make one of your opponent's loses 2 points of public opinion on each planet in not recommended ways.
You managed to make an opponent loses 20 days.
The Corpus Prime sector has no more secrets for you.
The Meridian Border sector has no more secrets for you.
The Edeus Consul sector has no more secrets for you.
The Stellar Gate sector has no more secrets for you.
The Demerian Sector has no more secrets for you.
The Alliance System sector has no more secrets for you.
Well done, you visited 10 planets.
Well done, you visited 20 planets.
Well done, you visited 30 planets.