Here is the full list of all 12 The Deal achievements.
Started the adventure!
Defeat Goran in the Chamber.
Use the Enchanted Mantle for the first time.
Find the Ancient Glasses.
Go into all three of Theodora's Labyrinths.
Survive the dark ritual in the Long-lost Caves.
Acquire the Power Gloves.
Find and defeat the evil witch in the Newly-found Ruins.
Find and defeat the Dark Witch Janeira.
Retrieve the lunchbox!
Banish the demon once and for all!
End the game with more than 16.500G!