Here is the full list of all 30 God of Word achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Save 10 Followers
Save a follower with no incorrect guesses
Beat All Typing Levels
Defeat Echidna
Defeat the Minotaur
Defeat the Hydra
Reach the Max Level
Earn 500,000 Gold
Defeat Lamia
Defeat Lycaon
Defeat Arachne
Defeat the Cyclops
Defeat the Chimera
Kill an enemy with exact damage
Use 10,000 Letters
Unlock 5 Treasure Chests
Spell 2,500 Words
Defeat 100 Normal Enemies
Defeat the Manticore
Defeat Ladon
Defeat the Calydonian Boar
Defeat the Nemean Lion
Max out an ability
Defeat the Sphinx
Defeat Cerberus
Defeat Medusa
Spell a 7 Letter Word
Spell a word with 3 or more Special Tiles
Beat All Levels
Defeat Typhon