Here is the full list of all 50 Star Trek: Infinite achievements.
Complete the Federation Tradition Tree.
Have 20 colonies at the same time.
Obtain more than 50% of the Balance of Power.
Build a starship of the largest possible class.
Reach 95% Empire Stability.
Upgrade a starbase to the highest level.
Build the highest tier of capital building.
Engage in a war with all 4 Major Powers simultaneously.
Research 20 anomalies.
Research 100 Technologies.
Contact all types of Support Powers.
Defeat the Borg as the Federation.
Choose the Warfare path on the Mission Tree. (Federation)
Build a Mining or Research Station inside a Hazard.
Unlock the U.S.S. Enterprise. (Federation)
Complete 25 Spy Missions.
Win a game as the Cardassian Union.
Win a game as the Federation.
Win a game as the Klingon Empire.
Win a game as the Romulan Star Empire.
Integrate Bajor. (Cardassian)
Reach 100% Global Tension.
Have 50 Slave Pops. (Cardassian)
Send 20 gifts.
Recruit Hugh.
Free a system by sabotaging a starbase.
Defeat the Borg as the Klingon Empire.
Defeat the Borg as the Cardassian Union.
Defeat the Borg as the Romulan Star Empire.
Complete the Klingon Tradition Tree.
Complete the Cardassian Tradition Tree.
Complete the Romulan Tradition Tree.
Win a game using Civics.
Win a game via Points.
Abolish Slavery via the Mission Tree. (Cardassian)
Reject Kahless. (Klingon)
Accept Kahless. (Klingon)
Choose the less-xenophobic path on the Mission Tree. (Romulan)
Reunite with the Vulcans. (Romulan)
Fully upgrade the Enterprise. (Federation)
Complete all Mission Tree Nodes for the T.N.G. crew. (Federation)
Overthrow a minor power by staging a coup. (Klingon)
Control 5 Puppet States as the Romulan Star Empire.
Assimilate a Puppet State as the Romulan Star Empire.
Help evacuate Romulus. (Federation)
Have a Gaia-class planet that is home to at least 50 Pops.
Hire 10 Nausicaan Leaders.
Evacuate Romulus before the Supernova. (Romulan)
Liberate a minor power.
Win a war with the Glory to the Empire war goal. (Klingon)