Treasure boxes are a part of the rewards for war_of_emperium. When a guild owns a castle, the leader may enter a special room where these treasure boxes spawn. Every day at 12:00 AM server_time, the Treasure Boxes spawn in a room accessible only by the guild leader from a NPC in each castle. Items drop from these boxes, and drop rate-improving items may assist in obtaining rares. steal does not function here. For a list of item dropped by each castle, please refer to the following castle pages.