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War Sails Modding Kit Release & Patch WS v1.2.8 / BL v1.4.8

Mount & Blade II: Bannerlord · Community Announcements · August 10, 2026

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Greetings Warriors of Calradia,

The War Sails Modding Kit is now available! A big thank you to all the modders who tested the Kit during the Closed Beta. Your feedback and early creations directly shaped the Kit we're releasing today.

[dynamiclink href="https://store.steampowered.com/app/4456490/Mount__Blade_II_Bannerlord__War_Sails_Modding_Kit/"]

With this Kit, modders can:

We are also releasing three new modding documentation pages to detail the new systems:

How to Access the Kit

You can download the Kit via Steam: Open Steam → go to Library → right-click “Mount & Blade II: Bannerlord” → Properties… → DLC → Install “Mount & Blade II: Bannerlord - War Sails Modding Kit”.

You can then open it via Steam: Open Steam → go to Library → launch “Mount & Blade II: Bannerlord - Modding Kit” → enable “War Sails” on the launcher’s “Mods” list → press “Play” → press “Editor” in the “Main Menu”.

Modding Kit Usage, Mod Creation & Distribution

The Modding Kit usage and mod creation fall under the Bannerlord Modding Tools - EULA. To learn more about the EULA and how to upload a mod to Steam Workshop, visit the War Sails Modding Kit & Mod Creation forum thread.

Thank you again to all the Closed Beta participants: \[TAOM] Thyrell, Anate, Arcaddon, Awallacer, BlackRose, Byako, CaptainFRACAS, conleyc86, Cozur, Dedmond, Detals, Eogan, Fatrod, g-spurs, Ha_rang, Hart, HyperCharge, jabdimelborn, John_M, KAMBY, Le Profyteur, Lemmy1916, Litauen, NiceGuardian, Path, Shieldly, Sly, Snorri, toy boat, Vampy, Z3rca, Zodiac, zzensan.


Please note that there may be a delay between the download of the base game and the download of War Sails. If you launch the game prior to both of them being updated, you will crash. If you face this issue, please verify your game files.

War Sails v1.2.8

The following changes are specific to the War Sails expansion and are not part of the base game.

Changes

Bannerlord v1.4.8

The following changes are part of the base game and apply to the War Sails expansion as well.

Changes

Fixes

Modding

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