The Blood Pledge Dungeon, 'Dungeon of Solidarity', has been added to Lineage Classic. The Dungeon of Solidarity is a Blood Pledge-exclusive dungeon that a Blood Pledge's Monarch can open once per week by spending 300,000 Adena. Inside, players hunt monsters to proceed to the boss room and obtain various items from special bosses.

First, the Blood Pledge Dungeon can be opened when the Monarch selects 'Open Blood Pledge Dungeon' in the Blood Pledge Settings window. Opening the dungeon can only be done by the Blood Pledge's Monarch, who can spend 300,000 Adena to open it once a week. Since unused entries do not carry over, it is recommended to use it every week, and the opened dungeon stays active for 1 hour.

Once the dungeon is opened, Blood Pledge members can enter the dungeon through the Blood Pledge Settings window in the same manner. Members incur no additional cost to enter, and because the interior is a Normal Zone with no death penalty, players do not lose EXP even if they die while hunting monsters, making it safe.

In the Blood Pledge Dungeon, there are two primary objectives: regular monsters and boss monsters. Inside the dungeon, players can obtain 'Golden Keys' by hunting regular monsters or searching treasure chests. The player who obtains a Golden Key can consume it to open the dungeon's boss room and shortcut rooms.

When the boss room is opened, one boss out of Dark Death Knight, Dark Kurtz, Dark Demon, Dark Baphomet, or Dark Beleth will appear at random. Defeating it grants designated rewards. Because the equipment and spellbooks dropped vary by boss, a Blood Pledge's luck depends on which boss spawns.

Ultimately, the goal of the Blood Pledge Dungeon is for all Blood Pledge members to enter quickly as soon as it opens, hunt monsters, unlock the boss room, and defeat the boss. Since the dungeon remains active for only 1 hour after opening, the Blood Pledge should discuss and schedule a weekly opening time, gathering as many members as possible at once to complete the boss run without wasting the opportunity.

Below is a breakdown of the item drops for regular monsters and each boss. Since drop items vary by monster—and bosses in particular drop a wide variety of items—they are organized in separate images.

Due to its nature as an instance dungeon, there are several precautions to keep in mind for the Blood Pledge Dungeon. First, as previously mentioned, the Monarch should not open the dungeon arbitrarily, but coordinate a weekly opening time with Blood Pledge members. Because the dungeon is most effective when as many members as possible enter quickly upon opening, opening it carelessly when no members are present can result in missing the boss entirely.

Players should also carefully consider which Blood Pledge they use to enter the Blood Pledge Dungeon. While this does not affect most general players, those who raise multiple characters across different Blood Pledges on a single account must note that Blood Pledge Dungeon entries are limited to once per week per account.

For example, if Character A in Blood Pledge 'A' enters a Blood Pledge Dungeon, Character B in Blood Pledge 'B' will be unable to enter a Blood Pledge Dungeon. On the other hand, Character A can leave Blood Pledge A's dungeon and re-enter as long as the dungeon has not yet closed.

Aside from remaining active for 60 minutes after opening, the usage time of the Blood Pledge Dungeon does not extend or shorten. It is also unrelated to whether characters are present inside the dungeon, and even after finding the key and defeating the boss, players can continue using the Blood Pledge Dungeon to hunt regular monsters inside.

However, the boss does not respawn, and even if additional Golden Keys are obtained from killing regular monsters, they are deleted during scheduled maintenance. Therefore, strategies like farming keys in advance to instantly open the boss room the following week are impossible.