Here is the full list of all 34 In Verbis Virtus achievements.
Save the game 50 times.
Kill a Rak'Emesh.
Kill a Shar-Seth.
Get 10 documents in your journal.
Defeat the Winged Glory.
Kill a Will-o'-the-wisp.
Kill a Saevar.
Kill 500 critters.
Find an ancient document.
Kill 100 critters.
Kill 25 critters.
Get 20 documents in your journal.
Get 30 documents in your journal.
Get all documents in your journal.
Solve the chessboard secret puzzle.
Create a healing pool.
Freeze two neighboring fonts.