Test Server Patch Notes
Greetings, Adventurers.
This is the Black Desert Mobile Service Team.
The Patch Notes for BDM Test Server update on Sep 1 are here!
※ All contents below are for the test server only, and may differ from the actual update on the live server.
Fortress Battle
Developer Commentary
Fortress Battle is a large-scale mode that serves as the gateway to the upcoming Siege War, where up to 300 Adventurers clash across a vast battlefield.
The battlefield features two Forts, one in the west and one in the east. Guilds that secure final control of a Fort will qualify for Siege War.
Rather than having every guild converge on a single location to compete through sheer force, Fortress Battle was designed to create dynamic situations across the battlefield and allow each guild to forge its own story.
For example, guilds confident in their combat strength can attempt to occupy a Fort early in the battle. Alternatively, they can strengthen their position by occupying War Camps, Outposts, Lumber Mills, and Smelters across the battlefield to secure the resources needed to craft siege weapons. Occupied nodes can also serve as revival points for guild members.
Guilds can also defeat the Red Dragon between the two Forts to obtain a powerful buff and gain an advantage in battle. However, focusing on the dragon may leave occupied nodes vulnerable to other guilds, so choosing the right time to engage it will be crucial.
When Fortress Battle launches on the live server, we plan to provide rewards based on the nodes occupied, including War Camps and Outposts, even for guilds that do not secure final control of a Fort. We hope you enjoy employing a wide range of tactics to dominate the battlefield by targeting different nodes based on your guild's objectives.
We are also hard at work developing the new Siege War to bring it to Adventurers. We will share its schedule and further details on the official website as soon as they are ready.
Fortress Battle Overview
- Added "Fortress Battle."
ㆍFortress Battle will be held twice a day on the test server, with up to six guilds participating in each session (up to 300 participants per session).
- CP adjustment does not apply in Fortress Battle.
- Fortress Battle tests will be held at the times listed below on Sep 2 (Wed), Sep 3 (Thu), and Sep 4 (Fri).
| Date | Category | Schedule |
| Sep 2 (Wed) | Guild Participation | [Session 1] - Until 17:00 (UTC+9): Create a Character - 21:00 onward (UTC+9): Fortress Battle begins |
| [Session 2] - Until 17:00 (UTC+9): Create a Character - 22:30 onward (UTC+9): Fortress Battle begins |
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| Sep 3 (Thu) | Open Participation | [Session 1] - 18:00–19:10 (UTC+9): Join a guild - 19:30 onward (UTC+9): Fortress Battle begins |
| [Session 2] - 19:30–20:40 (UTC+9): Join a guild - 21:00 onward (UTC+9): Fortress Battle begins |
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| Sep 4 (Fri) | Guild Participation | [Session 3] - Until 17:00 (UTC+9): Create a Character - 21:00 onward (UTC+9): Fortress Battle begins |
| [Session 4] - Until 17:00 (UTC+9): Create a Character - 22:30 onward (UTC+9): Fortress Battle begins |
[Guild Participation Details]
| Start Time | Participating Guilds |
| Sep 2 (Wed), 21:00 (UTC+9) | 으르릉 (KR) HOTHAN (KR) Reyon (KR) BLACK (KR) 沙漠黑鷹 (ASIA) 雪狼族 (ASIA) |
| Sep 2 (Wed), 22:30 (UTC+9) | 엘클 (KR) I리젠I (KR) 청플 (KR) 청출 (KR) Only (KR) RaиkSS (ASIA) |
| Sep 4 (Fri), 21:00 (UTC+9) | Orzeca (ASIA) ChaosLegion (Europe) Kopitiam (ASIA) Revenant (ASIA) 當惡魔遇到殺手貓 (ASIA) 微笑Party (ASIA) |
| Sep 4 (Fri), 22:30 (UTC+9) | 첫페이지 (KR) 아르릉 (KR) DarkOrden (Europe) ・殺戮・ (ASIA) Maverickz (ASIA) ChaosOasis (Europe) |
- Click the shortcut below for details on how to access the test server and apply to participate in Fortress Battle.
▶ Go to [BDM Test Server] Fortress Battle Guide
Basic Battle Information
■ Preparations Before Entry
- The Guild Master and Guild Officer should complete the following setup.
- The "Call to Battle" effect under [Guild] > [Benefits] > [Skill] can be applied in Fortress Battle.
- Siege weapons and an elephant from the Guild Fortress Armory and Den can be summoned.
ㆍOnce all siege weapons from the Guild Fortress have been used, certain siege objects can be crafted using resources obtained during Fortress Battle.
■ Entry
- You can participate in Fortress Battle at the times listed in the "[BDM Test Server] Fortress Battle Guide" notice.
- Enter Fortress Battle through [Siege War] > [Fortress Battle] at the Siege Gateway in the Guild Fortress.

ㆍOnce Fortress Battle begins, you can also move to the Siege Gateway using the shortcut icon displayed to the right of the minimap.
※ On the test server, a GM will handle the bidding process, allowing Adventurers to participate in Fortress Battle without bidding separately.
- You can enter Fortress Battle starting 5 min before the battle begins.
ㆍHowever, you cannot leave the restricted area around your initial starting location until the battle begins.
■ Battle Duration
- Fortress Battle lasts up to 60 min.
- The remaining time is displayed at the top center of the Fortress Battle screen.
■ How to View the World Map
- Tap the World Map icon to view the location of each node. Select a node icon to automatically travel there.
- The World Map also displays the following information.

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Category |
Details |
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Shows your current location. |
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Shows Nodes' occupation status. |
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Shows how nodes and Resource Nodes are connected. |
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Shows the Occupation Timer for each fort, including the time remaining until occupation and the Reclaim Period after occupation. |
■ Revival
- When your character is defeated, you can revive after a set period.
- On the revival screen, choose one of the following methods to revive.
ㆍSelect a revival location and revive there.
ㆍRevive at the location of an installed Indomitable Flag.

■ End of Battle
- Fortress Battle ends when either of the following conditions is met.
ㆍ60 min have elapsed since the battle began.
ㆍControl of all forts has been finalized.
■ Rewards
- When the battle ends, the guild holding each of the two Forts will qualify to participate in Siege War.
- Each location is assigned a Tier, and you can obtain rewards based on the locations your guild occupies.
※ Node Tiers are ranked from highest to lowest as follows: Fort > War Camp > Outpost > Lumber Mill/Smelter.
※ On the test server, the event rewards listed in the "Fortress Battle Guide" notice will be distributed.
Key Elements
- The key elements found throughout Fortress Battle are as follows.
ㆍEach guild may occupy only one fort, but may simultaneously occupy multiple War Camps, Outposts, and Resource Nodes.
ㆍA flag, Defense Tower, or Holy Artifact is located at the center of each node.
ㆍDestroy the object at the center to occupy the node.
| Icon | Description |
|---|---|
![]() Starting Location |
- This is where guild members enter the battlefield at the start of the battle. |
![]() Smelter |
- A resource facility that produces and stores ore. |
![]() Lumber Mill |
- A resource facility that produces and stores lumber. |
![]() Outpost |
- A small battle node containing Hwachas and a flag. * Destroy the flag to occupy it. |
![]() War Camp |
- A War Camp consisting of a Defense Tower and barricades. |
![]() Boss |
- The boss Red Dragon is a powerful monster that appears on the battlefield at set intervals. |
![]() Fort |
- A key defensive stronghold on the battlefield and the final objective of Fortress Battle.
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![]() Castle |
- A key stronghold in Siege War. |
Details
Other
- The Guild Master and Guild Officer can apply Guild skill effects and craft, install, or summon siege objects.
- Tap the "<" button below Contribution to use the following functions.

- Siege weapons can be summoned at occupied nodes.
ㆍSiege objects purchased or crafted at the Guild Fortress Armory are used first. Once all siege objects from the Armory have been used, additional siege objects can be crafted at occupied nodes using Lumber and Ore obtained during Fortress Battle.
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Category |
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- The "Call to Battle" effects under [Guild] > [Benefits] > [Skill] can be applied. |
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- Cannons from the Armory can be used.
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- Flame Towers and Enhanced Flame Towers from the Armory can be used. |
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- The following siege weapons from the Armory can be used.
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- Siege weapons can be crafted using Fortress Battle resources.
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ㆍTap the "Assemble" button to summon guild members.

※ Assembly has a 5-min cooldown and can be activated up to three times.
※ Guild members can instantly move to the Assembly location by tapping the "Activated Assembly" button displayed on the screen.

ㆍView the HP and stored resources of currently occupied Forts and Nodes.

Thank you.