Here is the full list of all 26 The Dark Crystal: Age of Resistance Tactics achievements.
Defeat the Emperor on New Game + Mode
Defeat the Emperor
Witness the final destruction of the Hunter
Witness the Chamberlain's Betrayal
Help get the lost Stonewood Gelfling home
Unite the Stonewood Clan
Free the Stonewood prisoners
Recruit a second podling
Unite the Spriton Clan
Find out what happened to the Castle Guards
Recruit a Sifa Gelfling
Unite the Sifa Clan
Defeat the General in the Vapran Citadel
Unite the Vapra Clan
Defeat the Skeksis loyalists in Ha'rar
Unite the Grottan Clan
Make your way back to Deet's home
Drive the Chamberlain away from the Drenchen village
Unite the Drenchen Clan
Save the Drenchen Villagers from the hungry Arathim
Unite the Dousan Clan
Survive Desert Ambush
Recruit a Dousan Gelfling
Complete Brea's Dreamfast
Complete Deet's Dreamfast
Complete Rian's Dreamfast