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