Deep Nether is a world that can only be entered by consuming a 
Blood Scroll. These scrolls can be bought from the Nether Vendor for 1,000 
Gems each and the vendor appears occasionally in the Netherworld.
Deep Nether is a smaller world compared to the Netherworld and in order to exit the world, players will have to defeat all the monsters scattered around the world and find the exit gate. If players manage to defeat all the monsters without dying ONCE and exiting via the exit gate, they will be rewarded with 10 
Nether Embers, which can be combined into a 
Nether Stones to purchase items from the Nether Vendor.
Rewards
This feature was added on 18th September on the release of Best Update Ever. These rewards can be obtained by killing specific type of monster inside the Deep Nether which will be listed here:
Monsters
There are 8 types of monsters in Deep Nether. Each one of them has different attacks, health, designs, movement & gem drops:
