#1627
There are 3 different kinds of Conqueror Chests.
Gold, Silver and Bronze.
You get them from monster drops.
Chests contain random items (some extremely expansive other are just things).
Gold Chest will give you the best chance of getting an expansive item then silver and then Bronze.
To open them you need keys to increase the chance of getting a good item.
There are 3 types of keys like the Chests, gold, silver and bronze and like the chest gold is the best etc.
In addition, the keys are divided into 3 different colours, Red (increase weapons drop), Green (increase cloth drop), Blue/Purple (increase misc. item drop like charms and collection items)
Each conqueror chest no matter which type will have 3 key slots.
The more keys you use, the more chance you get to have a better item but try use the same colour keys to increase that type of desired drop.