In the dungeons, the character will stumble upon many locked door and containers in the dark caverns.
When a chest or door requires to be opened by a key, the icon of a locket will appear, e.g on the location card in the card menu. The icon will appear on the indicator status.
Only specific keys can be used to open lockets. Heroes may find several keys before finding a locket, and match the key to it. To open locked items or gain entry to new locations, The player will require a key. Keys can be found in containers, or simply laying on the floor.