Every chest other than the wooden chest requires their respective key.
Ace Chests only spawn on the Archives and Chambers, with one guaranteed in the Forsaken Tower. In the Pyramid of Prophecy they can only appear within the pyramid itself.
Ace Keys can be dropped by Act 3 and 5 minibosses, and from any act boss rarely.
The Scorpion minibosses in Act 1 of the Pyramid of Prophecy are also able to drop Ace keys. The most reliable way to obtain an Ace key is to use the Key Ring. It gives a 5% chance to get an ace key each time it generates a key, with a 50% chance to generate a key when picking on up on the floor.
The player can also use the Ace key Fountain fortune to get 1 free Ace key (given to the host) or the Ace chest fortune to increase the chance of finding Ace chests.
Each chest's loot percentages are listed below:
|Chest Type||Common Item||Uncommon Item||Rare Item||Epic Item||Legendary Item||Ore||Money|
|Wooden||70%||5%||0%||0%||0%||5%|| 15% Blue Diamond
5% Red Diamond