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.
Activated the Resonance Chamber.
Unlocked all elements in the Calm.
Coty betrayed the First on your behalf.
Found all Merecasters.
Reached the Ascension.
Returned the lascars to their home.
Defeated Waits-for-Prey in combat.
Rhin returned to her true home.
The entire party loves the Last Castoff.
Powered up Erritis' nanites.
Found the murdens' treasure room
Purchased a slave.
Died by drinking too much Bloom juice.
Reached the Bloom.
Found Miel Avest.
Brought peace to Choi's spirit.
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.
Helped Phoenix find the answer he seeks.
Rescued the Memorialists in the Valley of Dead Heroes by failing to find them.
Reached the Valley of Dead Heroes.
Completed a Mere.
Found the Hall of Relics.
Rhin found a new family through the House of Empty Time.
Equipped every one of Jernaugh's upgrades.
Tybir made a dangerous deal with Tol Maguur.
Discovered Min of Tan Liang's embarrassing secret.
Acquired one too many cyphers.
Defeated the Adversary.
Slew the Nychthemeron.
Became the main course in a Dendra O'hur feast.
Woke up in the Calm after dying.
Convince the Cult in Sagus Cliffs that you're the Changing God.
Learn the truth of where Jherem came from.
Reached Sagus Cliffs.
Ended your life before it truly began.
Escaped the Sorrow... for now.
Became the new Memovira.
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.
Translated Callistege's consciousness into the datasphere.
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.