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