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