Promo codes can be used from character level 30. On a character of level 30 or higher, open the game Menu, go to the 4th Store tab and select "Enter promo code". In the window that opens, click on the input line, delete all characters and enter/paste the promo code. When using multiple promo codes, an interval of 30 seconds should be observed.

Open the game Menu, go to the last tab System and click on the button "I'm stuck". This action does not take away experience, but will allow you to move to the last Flame or to the Refuge of the Damned.

Talents allow you to significantly increase the power of your character. You can see the Talents in the Menu, in the Character tab, under Talents.
There are 3 "branches" of talents - Berserker, Knight and Healer. These branches provide various boost bonuses. By combining Talents with characteristics effects, you can set an individual development vector for your character.
It is not necessary to use one talent branch - you can come up with a combination of different branches depending on your needs. The only limitation: to use the next level in a talent branch, you must have 10 points at the previous level.

Learn the "Talent Mastery" ability from your class's Mentor in the Refuge of the Damned.
To learn this ability, you need to purchase a "Talent Book Template", upgrade it (according to the required ability level) and exchange it for a Talent Book. For full learning, Talent Books of levels 1 through 5 are needed.
Note: Learning Talent Mastery is a sequential process. You must start by exchanging a Talent Book for +1 and continue in ascending order. If you make a higher-level Book first, you will not be able to learn the Ability of the previous unlearned levels.

Step by step:

• Buy and upgrade "Talent Book Template".

"Template of Talent Book" is sold by the Merchant in the Refuge of the Damned (Elite goods - Abilities section) for 1,000,000 Gold.
The item can be improved using the item "Magic Page", to do this, click on the Page in the character's inventory and select "Use". Magic pages can be obtained as a reward for defeating enemy entities in locations from "Castle of the Fallen King" and above.

• Exchange the Template for a Book of Talents.

Go to the Trainer in the Refuge of the Damned and select "Book of Talents" from the menu. Exchange the Template for a Book of the appropriate level.

• Learn the ability.

After receiving the Talent Book, you can learn the corresponding level of the "Talent Mastery" ability from your class's Trainer in the Refuge of the Damned. When studying, the book will be spent.

The Abyss is a temporary zone, the entrance to which is in the Refuge of the Damned (from the Keeper along the corridor). The trial consists of several rooms that open one by one. Each room contains enemy entities that must be defeated.
When the character dies, you can go back to the temporary zone.
If there are no players in the temporary zone for 5 minutes, it closes.
Abyss attempts are refreshed on Monday, Wednesday and Friday.

Individual playthrough in Normal mode is available from level 20 to 39. From level 40 and above, a group of players is required to complete the challenge (the difference between the leader and the group members should be no more than 5 levels).
To complete the Abyss in Hard mode, all group members must be level 70+.

The location will open automatically when the character reaches level 35.
Attention: the tasks and the power of enemy entities are designed for players of level 40+.

To get to this location, you need to go to the Wasteland of Eternal Night, find the Wasteland Merchant in the fortress rooms and buy the Cursed Skull from him. To buy the Cursed Skull, click Exchange/Exchange Souls and Essences, then find the Cursed Skull in the list and buy it for 5,000,000 Gold.
Find the Cursed Skull in the character's inventory, click "Use" and you will be teleported to the Tower of Death.

You can get to the Forgotten Path location only through the Death Tower location. To do this, go to the Death Tower and find the Mysterious Spirit (between the 2nd and 3rd floors, on the 3rd floor in the hall). Through dialogue with him, you can get to the Forgotten Path.

At the moment, level 75 is the last one.