Bannerlord: Top 4 Overhaul Mods for New Adventures (2026)

※This article reflects information as of June 24, 2026. Mount & Blade II: Bannerlord does not have a "season" system like typical online games. The developer, TaleWorlds Entertainment, manages updates by version numbers. As of June 2026, the latest major updates are primarily related to the expansion DLC "War Sails" (v1.4.X series) and the preceding v1.3.X series. Since many MODs are created to support specific game versions (e.g., v1.3.15), it is common to downgrade (or upgrade) the main game to match the version required by the MOD you wish to play.

Days of endless battles on the continent of Calradia. But do you feel a slight lack of satisfaction with vanilla (unmodded) gameplay? If so, you should experience the world of "large overhaul MODs" that overturn game conventions. From leading ancient Roman armies to commanding the undead in a magic-filled fantasy world, Bannerlord is reborn as a completely new game with MODs. In this article, we've carefully selected 4 highly popular large MODs from Nexus Mods and will thoroughly explain their appeal and installation methods!

Most Important Points to Know Before Installing MODs

Before diving into the world of large MODs, there are a few important considerations. In particular, "game version" and "prerequisite MODs" are ironclad rules for MOD play. Ignoring these will be the main cause of problems such as the game not launching or crashing.

Ensure the Game and MOD Versions Match Exactly

Bannerlord MODs are a very delicate collection of programs. Therefore, if the game version supported by the MOD differs even slightly from the version you are currently playing, it will not function correctly. Many large MODs are developed based on a stable, slightly older game version (e.g., v1.3.15). When installing a MOD, always check the supported version on the MOD page on Nexus Mods, and if necessary, downgrade the main game version to what the MOD requires via Steam's "Properties" → "Betas." This extra step is the first step towards a comfortable MOD life.

"Prerequisite MODs" as the Foundation for All MODs

Many large MODs do not work on their own. Separate "prerequisite MODs," which are foundational MODs to prevent conflicts between MODs and integrate additional features into the game, are required. The following four are required by most MODs, so it is strongly recommended to install them first:

• Harmony: An essential library for maintaining compatibility between MODs.
• ButterLib: Provides common functions for other MODs to use.
• UIExtenderEx: Allows for the extension of the game's UI (User Interface).
• Mod Configuration Menu: Adds a menu to change MOD settings within the game.

The basic procedure is to install these prerequisite MODs first, and then install the desired large MOD.

Into the World of History! Recommended Historical MODs

These MODs transform the continent of Calradia into historical settings we know. Equipment and factions based on meticulous historical research create overwhelming immersion.

1. Hold the Glory of Ancient Rome in Your Hands: 『Eagle Rising』

This is a super-large MOD that recreates the era when the Roman Empire vied for supremacy, envisioning Calradia as ancient Europe. You can lead Roman legions and contend with factions like the Gauls, Carthaginians, and Germanic tribes.

1. Features: The historically accurate Roman legion troop tree is impressive. Heavy infantry (Legionary) forming a "testudo" shield wall is truly an invincible fortress. The highest rank, Tier7 soldiers, cannot be created through normal upgrades and must be hired at special facilities after meeting specific conditions.
2. Installation Steps: After installing the required MODs, download the 『Eagle Rising』 main file from Nexus Mods and activate the MODs according to the specified load order.

• Notes: Generally, this cannot be used with other overhaul MODs. When installing, starting a new game is essential.

2. Become a Warlord of the Sengoku Period: 『Shokuho (織豊)』

This romantic MOD shifts the setting to Japan's Sengoku period, where you aim for unification under heaven as a daimyo like Oda, Takeda, or Uesugi. Elaborately crafted Japanese armor, swords, and castles completely change the battlefield atmosphere.

1. Features: You can lead samurai and ashigaru in large battles using Bannerlord's system. The volley fire of arquebusiers is truly spectacular. Each faction has its own unique troop tree, expanding strategic possibilities.
2. Installation Steps: After installing the required MODs, install the 『Shokuho』 main file and, if necessary, any additional asset packs.

• Notes: This also cannot be used concurrently with other overhaul MODs. Due to active development, there's a possibility that save data may become unusable with updates, so be aware of this.

Magic and Bandits / Enemy Troops! Recommended Fantasy MODs

The days of only swords and horses are over. Welcome to a dark fantasy world where magic, the undead, and giant bandits / enemy troops dominate the battlefield.

1. Ride Through the World of Warhammer: 『The Old Realms (TOR)』

This is the ultimate fantasy MOD that brings the dark and grand world of "Warhammer Fantasy" to Bannerlord. You can fight as a member of the human nation "The Empire," or plunge the world into terror as a "Vampire Count" leading undead armies. The choice is yours.

1. Features: Unique systems like magic and runes are the biggest features. The "career" system chosen during character creation is also excellent: choosing "The Knightly" grants bonuses for powerful cavalry deployment, while "The Paymaster" significantly reduces troop maintenance costs. Vampire Counts, in particular, have the astonishing characteristic of free maintenance for undead soldiers.
2. Installation Steps: In addition to the required MODs, TOR-specific prerequisite MODs may also be necessary. Always read the MOD page description carefully.

• Notes: This MOD fundamentally alters the game system, tending to have high system requirements and heavy performance. It should be considered an entirely different game from vanilla.

MODs to Expand the Continent of Calradia

Do you like the vanilla world but want to enjoy even larger conflicts? MODs that expand the world itself fulfill that wish.

1. Wider, Deeper: 『Calradia Expanded: Kingdoms (CEK)』

A popular MOD that significantly expands the existing map of Calradia and adds 8 new kingdoms. Without breaking the vanilla atmosphere, you can experience more complex and dynamic political situations and conflicts.

1. Features: Each of the 8 added kingdoms has its own unique culture, troop trees, territories, and lords. This makes the continent's power balance constantly fluid, promising a fresh experience that never gets old no matter how many times you play. If you're looking for the best replayability building on vanilla, there's no better choice.
2. Installation Steps: This MOD requires the base 『Calradia Expanded』 to be installed first. Then, installing 『Kingdoms』 will add the new factions.

• Notes: This MOD generally conflicts with other MODs that change maps or factions. It is not recommended to install it mid-save game. Always start a new game.

Summary

The four large MODs introduced here are all masterpieces that infinitely expand the possibilities of Mount & Blade II: Bannerlord. Whether you become an ancient Roman general, a Sengoku daimyo aiming for unification under heaven, or a hero in a fantasy world, the choice is yours.

Installing MODs requires several steps, such as checking versions and installing prerequisite MODs, and sometimes you may encounter unexpected errors. However, beyond overcoming these challenges awaits a grand story unique to you, an experience never found in vanilla. Before starting the installation process, always remember to back up your save data and game files. Now, open the door called MODs and embark on a journey to a new Calradia!