Reach dungeon level 15
Upgrade the difficulty of the dungeon
Become invisible
Play in the Arena room
Save a lost soul
Get the "Lens of secret"
Kill a cyclops
Activate a statue
Become level 10
Drink from the well
Buy a titanium shield
Slay 5000 monsters
Maximise dungeon difficulty
Kill a minotaur
Unlocked Barbarian character