Premium edition upgrade includes Dark Side Cookies bonus DLC that features:
- Clot of Darkness amulet providing bonus to money and experience
- Two additional locations
- Over a dozen additional quests and a new unit
Please note: Owners of Premium edition have this DLC already.
Please note: You'll need to start a new game to create the game world with new content. If you continue a save started in regular edition, premium content won't be available.