Here is the full list of all 50 Planescape: Torment: Enhanced Edition achievements.
Escaped the Lady's Maze - this time.
Drew the Lady's Gaze and got mazed.
Returned to Mebbeth and restored Unity of Rings.
Entered the Fortress of Regrets on your own.
Issued Pronouncement of Two Deaths of One at Fortress of Regrets.
Gave the Transcendent One an answer to a "meaningless question."
Kill all 3 incarnations in Fortress of Regrets.
Defeated your adversary.
Your name, at last.
Absorb all 3 incarnations in the Fortress of Regrets.
Helped Nordom resolve his issues.
Shifted Curst back to the Outlands.
Dealt with Trias the Betrayer.
Gained Vhailor as a companion.
Advance an attribute score to 25.
Dealt with Ravel Puzzlewell.
Reach level 12 in Mage class before any other class.
Met all of Ravel's branching incarnations in Sigil.
Restored Dak'kon's faith.
Discovered why Dak'kon's faith is shattered.
Discovered the truth of why Morte is with you.
Join Anarchists.
Reach Chaotic Alignment (any).
Discovered your connection to Ignus.
Gained Ignus as a companion.
Defeated the Modron Wizard.
Gained Nordom as a companion.
Join Sensates.
Gained Fall-From-Grace as a companion.
Found Pharod's Vault. It smells in there.
Rescued Morte.
Gained Annah as a companion.
Recovered the Bronze Sphere.
Join Dustmen.
Train to become a Mage.
Switch back to Fighter class over the course of the game.
Train to become a Thief.
Gained Dak'kon as a companion.
Reach Good Alignment (any).
Escaped the Mortuary.
Reach level 12 in Fighter class before any other class.
Reach level 12 in Thief class before any other class.
Reach Lawful Alignment (any).
Reach Evil Alignment (any).
Maintained True Neutral Alignment until the end of the game.
Gave birth to Adahn through belief.
Join Xaositects.
Advanced Dak'kon's karach blade to highest neutral point.
Advanced Dak'kon's karach blade to highest evil point.
Advanced Dak'kon's karach blade to highest honor point.