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.
Beat All Levels
Earn 500,000 Gold
Defeat Typhon
Reach the Max Level
Beat All Typing Levels
Defeat the Minotaur
Defeat Echidna
Save 10 Followers
Defeat Lamia
Defeat Lycaon
Defeat Arachne
Defeat the Cyclops
Defeat the Chimera
Defeat the Hydra
Defeat the Manticore
Spell 2,500 Words
Defeat Ladon
Use 10,000 Letters
Defeat 100 Normal Enemies
Defeat the Calydonian Boar
Defeat the Nemean Lion
Unlock 5 Treasure Chests
Kill an enemy with exact damage
Max out an ability
Defeat the Sphinx
Defeat Cerberus
Spell a word with 3 or more Special Tiles
Defeat Medusa
Spell a 7 Letter Word
Save a follower with no incorrect guesses