The rewards obtained from higher stages of secret rooms are also better and generally more worth your keys. The Secret Rooms also reward you with silver keys.From a measly Ancient Shard to the Mighty Sacred Shard, the rewards are yours to claim. The rewards are scaled as well from bottom to top.This means that fighting the same Boss on a lower stage and the higher stage is different in terms of stats required however, the mechanics of the Boss remain unchanged. Like every other stage of the Doom Tower, if the stage is failed, the key will not be used from your account.
There are 12 Secret Rooms, and each room has a different condition associated with it. The Secret Rooms of the tower function the same way as Boss floors, that is, once you clear them, you can farm them using the remaining silver keys if you want.So far, there is no other method to obtain these keys except the daily reset. If you fail the stage, the key will not be used. These keys will only disappear after you complete the stage you used the key for. You get 10 of both types of keys per day after it resets. The Gold Keys are used for entering the normal stages of the Tower, whereas, the Silver Keys are specifically used for entering only the Boss stages and Secret Rooms.
The 2 keys are – Silver Keys and Golden Keys, respectively.