As soon as the tower and its three companions have been unlocked and you have reached at least level 125, you get the chance to mine the key to Shadow World and thus to the first Shadow dungeon in the gem mine of the fortress.
You can get to Shadow World via the menu button "Dungeons".
The enemies in the dungeons of Shadow World can be compared to the villains of Light World with an increased difficulty level because the darkness gives them incredible strength. Luckily, these dungeons are explored with your companions!
On the shadow world map you will find all available dungeons. Once a dungeon was unlocked you will find information about the next opponent, incl. level, class and assigned element.
You get access to each Shadow dungeon with a key which can be found in the gem mine, but only after at least five dungeon floors have been defeated in the previous Shadow dungeon.
Similar to the tower, you gain an epic item from each enemy in Shadow world, either for your character class or for one of the companion classes. Items from Shadow dungeons can't be thrown in the toilet and they can't be sold. You can dismantle them though.
The requirements for each dungeon can be found in the table below:
15th Shadow dungeon
You can only enter this dungeon after reaching level 350.
16th Shadow dungeon
You can only enter this dungeon after clearing the first five floors of Shadow dungeon 12.
17th Shadow dungeon
You can only enter this dungeon after reaching level 222 and unlocking the tower in Light World.
18th Shadow dungeon
You can only enter this dungeon after reaching level 280.
19th Shadow dungeon
You can only enter this dungeon after reaching level 300.
Continuous Loop of Idols
You can only enter this dungeon after reaching level 222 and finding the USB stick in the gem mine.
The Twister is located in Shadow World and contains 1,000 monsters, enemies and characters from Light World. Unlike the other dungeons in Shadow World, the enemies here have to be fought without your companions.
This dungeon has the special feature that the next floor can be fought for free if an enemy has been defeated and you still have at least 90% of your hit points left.
Enemies defeated in the Twister are not added to your scrapbook.