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