Here is the full list of all 52 Torment: Tides of Numenera achievements.
Completed the game.
Rhin stayed with the Last Castoff.
Reached maximum character level.
Translated Callistege's consciousness into the datasphere.
Activated the Resonance Chamber.
Unlocked all elements in the Calm.
Found all Merecasters.
Reached the Ascension.
Found the murdens' treasure room
Returned the lascars to their home.
Rhin returned to her true home.
Died by drinking too much Bloom juice.
Defeated Waits-for-Prey in combat.
Purchased a slave.
Reached the Bloom.
The entire party loves the Last Castoff.
Found Miel Avest.
Brought peace to Choi's spirit.
Helped Phoenix find the answer he seeks.
Freed the Valley from the Children of the Endless Gate.
Undertook Tantalum's quest to explore the tombs of the Necropolis.
Brought a new minnim pair to life.
Rescued the Memorialists in the Valley of Dead Heroes by failing to find them.
Reached the Valley of Dead Heroes.
Became the main course in a Dendra O'hur feast.
Completed a Mere.
Discovered Min of Tan Liang's embarrassing secret.
Acquired one too many cyphers.
Equipped every one of Jernaugh's upgrades.
Found the Hall of Relics.
Defeated the Adversary.
Woke up in the Calm after dying.
Rhin found a new family through the House of Empty Time.
Tybir made a dangerous deal with Tol Maguur.
Slew the Nychthemeron.
Convince the Cult in Sagus Cliffs that you're the Changing God.
Learn the truth of where Jherem came from.
Escaped the Sorrow... for now.
Ended your life before it truly began.
Reached Sagus Cliffs.
Became the new Memovira.
Coty betrayed the First on your behalf.
Became The Changing God.
Aligern found his friends and family.
Made Aligern believe that you're the Changing God... and earned his love anyway.
Callistege became fully human again.
Powered up Erritis' nanites.
Freed Erritis from the Audience.
Helped Tybir make peace with Auvigne.
Matkina turned away from her isolation.
Matkina became the new Memovira.
The entire party dislikes the Last Castoff.