Full list of all 50 Alpha Protocol achievements worth 1,000 gamerscore. It takes around 50-60 hours to unlock all of the achievements on Xbox 360.
Complete Operation True Heirs.
Complete the Training Mission.
Complete Operation Desert Spear.
Complete Operation Blood Feud.
Complete Operation Deus Vult.
Complete Alpha Protocol.
Reconcile with Alpha Protocol and stop Halbech.
Put an end to Halbech and Alpha Protocol.
Complete Alpha Protocol on Hard difficulty setting.
Complete the Alpha Protocol using the Recruit background.
Assassinate Sheikh Shaheed.
Allow Shaheed to live.
Prevent the assassination of President Ronald Sung.
Prevent a riot from killing hundreds in Taipei.
Discover the identity of Sung's assassin.
Alienate "secret agent" Steven Heck.
Stop the plot to destroy the Roman History Museum.
Save Madison Saint James from certain death.
Gain Marburg's respect and best him in combat.
Provoke Marburg into a fatal duel.
Eliminate Konstantin Brayko.
Spare Konstantin Brayko.
Forge a partnership with Sergei Surkov.
Kill Surkov for lying to you.
Refrain from killing in cold blood.
Let your gun do the talking.
Turn all your enemies into allies in one single career.
Romance Madison Saint James.
Romance Mina Tang.
Romance Scarlet Lake.
Romance all the ladies in Alpha Protocol in a single career.
Complete the game without being seduced.
Use each stance at least 25% across 90 dialogue stance choices.
Gain Liked reputation status of 3 people (who must all Like you at the same time).
Get 3 people to hate you (who must all hate you at the same time).
Acquire the vast majority of Intel available in the game.
Score 100 Critical Hits with the Pistol.
Achieve the maximum SMG Critical Hit Multiplier 7 times in your career.
Score 100 Critical Hits with the Shotgun.
Score 100 head shots with the Assault Rifle.
Defeat 50 enemies with CQC.
Evade or Takedown 75 enemies across your career.
Complete 3 missions with less than 5 kills and with no enemies alerted to your presence.
Complete 5 missions wherein 6 different gadgets are used.
Have 100 placed devices detonate.
Pick 10 locks.
Bypass 20 electronic devices.
Hack 10 computers.