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