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I’m looking for a skilled Bannerlord modder to turn the entire single-player campaign into a seamless two-player experience. My goal is to keep every core element—story quests, dynamic battles, character leveling, skill trees, resource management, and trading—fully intact while letting each of us play as separate, fully independent characters. What I need • A custom module that enables synchronized two-player co-op from the first tutorial skirmish all the way to endgame kingdom management. • Both clients must be able to recruit troops, negotiate, trade, wage war, and trigger quests without restrictions normally reserved for the host. • Progression, inventory, and world states should persist cleanly in shared saves, with no desync issues on reload. • Clean UI prompts for joining/leaving sessions and clear indicators of who controls what army, settlement, or dialogue choice. • Solid net-code: minimal latency in large battles, graceful handling of disconnects, and deterministic world simulation. Deliverables 1. Compiled mod files ready for the current Steam version of Mount & Blade II: Bannerlord. 2. Source code (C# / Harmony patches) so I can maintain compatibility with future game updates. 3. Step-by-step installation and configuration guide for both players. 4. Brief test report confirming quest progression, sieges, large battles, and trading all work in co-op. I’ll be available for quick feedback rounds and can spin up test servers as needed. If you’ve tackled Bannerlord networking or large-scale sandbox mods before, I’m especially eager to hear how you’d approach sync, performance, and save integrity.
Project ID: 39724530
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47 freelancers are bidding on average $3,739 USD for this job

Hello, I understand you're looking for an experienced modder to transform the Bannerlord single-player campaign into a smooth two-player cooperative experience. This involves creating a custom module that maintains all core game elements while allowing both players to operate independently. My approach would focus on ensuring synchronized gameplay from the tutorial to endgame, with a strong emphasis on clean UI prompts and solid net-code to minimize latency and handle disconnects gracefully. I’ll deliver compiled mod files, the source code, a detailed installation guide, and a test report to ensure all key features work perfectly. I'm ready to provide quick feedback during the project and will ensure everything is optimized for the current game version. What specific challenges have you faced so far with synchronization and save integrity in Bannerlord mods? Thanks, Muhammad Awais
$750 USD in 12 days
8.6
8.6

Hello, I understand you are looking to transform the single-player campaign of Bannerlord into a seamless two-player co-op experience, and I'm excited about this project! My approach would focus on creating a custom mod that keeps all essential elements, such as story quests and character progression, intact while allowing both players to operate independently. I will ensure synchronized gameplay from the very first skirmish all the way to the complexities of kingdom management. Additionally, I'll emphasize solid net-code to minimize latency during large battles and ensure smooth handling of disconnects. Persistence of world states, clean UI prompts, and a robust installation guide will also be integral parts of our deliverables. What specific challenges have you encountered with existing Bannerlord mods that I should address to improve the co-op experience? Thanks, Shamshad
$750 USD in 18 days
6.5
6.5

Hi, I 've check your project " Bannerlord Full-Feature Co-Op Mod " carefully and understood what you want. I am senior full stack developer with 10 years of experience who is good at Game Design, Unity, Software Development, Game Development, Modding, Game UI, Game Testing and C# Programming and I think I can complete your project with similiar experience. I would like to have a brief discussion for your project very soon. Best regards, Benjamin
$250 USD in 13 days
5.2
5.2

Hi JustADuck I reviewed your project "Bannerlord Full-Feature Co-Op Mod" It’s a great fit for my expertise. I can deliver a fast, secure, and user-friendly solution within your desired timeline at a reasonable price. With 500+ completed projects and a 4.9★ Top-Rated profile, I guarantee you’ll get high-quality results that meet your expectations. ★ Why Clients Choose Me • Proven Track Record → 400+ reviews, 500+ projects • Web Expertise → WordPress, Shopify, wix, Laravel, React, Vue.js, PHP, Python and more • E-commerce & SEO → Store setup, payments, on-page SEO, performance boost • UI/UX Design → Modern, responsive, conversion-focused • On-Time & On-Budget → 96% timely, 97% within cost • Reliable Support → Free 1-month help + long-term maintenance • Secure Solutions → Backups, security & optimization ◆ Risk-Free Guarantee → No upfront payment. Pay only when satisfied, with full money-back assurance. If you want a professional developer who delivers on time, on budget, and stress-free, let’s connect. I’ll turn your vision into a secure, rapid, and growth-focused digital experience. Best regards, Kausar Parveen
$350 USD in 3 days
4.7
4.7

Hi, I’m an experienced C# and Harmony mod developer with a background in networking and large-scale sandbox modding for Bannerlord and Unity-based titles. For your project, I’ll build a custom co-op module that syncs the entire single-player campaign, allowing two players to progress as fully independent characters with shared persistence across saves. The mod will cover synchronized quests, trading, battles, skill progression, and kingdom management, with clear UI indicators for control handoffs. Net-code will be optimized for minimal latency in large battles, deterministic world simulation, and safe recovery from disconnects. Previously, I worked on a multiplayer campaign extension for a sandbox RPG where I implemented synchronized state replication, inventory persistence, and seamless save reloads—experience directly relevant to your requirements. Deliverables include compiled mod files, full C#/Harmony source, install/config documentation, and a test report covering quests, sieges, and trading in co-op. Best, Joseph
$500 USD in 7 days
4.8
4.8

My expertise in Bannerlord modding, including extensive experience with TaleWorlds' module system and Python scripting, makes me ideally suited for this project. I recently completed a similar large-scale mod overhaul, incorporating multi-player functionality into a single-player focused campaign, resulting in a 30% increase in player engagement metrics. This involved sophisticated network synchronization via UDP and optimized data handling for seamless co-op gameplay. My approach involves a phased development process: initial architecture design focusing on robust server-client communication, followed by feature implementation using Python and C# for optimal performance. I'll leverage asynchronous programming techniques to ensure smooth gameplay even with numerous players, incorporating rigorous testing throughout to identify and resolve latency issues and bugs. Data serialization will employ efficient methods for minimizing network bandwidth usage. Let's discuss this project further. Could you share the specifics of your desired co-op features and preferred multiplayer architecture (e.g., dedicated server, peer-to-peer), so I can tailor my proposal to perfectly align with your vision?
$611.55 USD in 21 days
4.3
4.3

Hi, I have deep experience modding Bannerlord and working with Harmony patches and sandbox systems, and I can build a custom module enabling true two-player co-op for the entire single-player campaign. My approach will involve deterministic world simulation, synchronized triggers, and dual-character state tracking to ensure seamless parallel progression—from tutorial to kingdom management. I’ll handle netcode with custom sync layers for quests, battles, and trading, while preserving performance and minimizing latency in large encounters. You’ll receive compiled mod files, full C# source, detailed setup instructions, and a tested, reload-stable co-op save structure. Thanks, Hercules
$500 USD in 7 days
4.3
4.3

Hello With over a decade of experience in game and mobile app development, I'm confident that I hold the skills needed to make your co-op mod for Mount & Blade II: Bannerlord a reality. I've not only developed immersive games using Unity3D and C#, but I also have expertise in network programming and multiplayer game architecture — the exact skill set required for synchronizing two-player co-op, efficiently handling disconnects, and deterministic world simulation. In fact, I've faced similar challenges before while creating large-scale sandbox games, and overcame them with great success. Moreover, my proficiency in Unreal Engine & C++ will allow me to provide you with source code that ensures future compatibility with the game updates. To give you a glimpse of my commitment to high-quality deliverables, I've optimized rendering pipelines in VR-based projects by as much as 40%, resulting in smoother gameplay - something that could be greatly valued in battles. Best Regards, Timothy B.
$700 USD in 15 days
4.4
4.4

Hello sir, Did go through your job description and glad to share that I have enormous experience in working with Bannerlord Full-Feature Co-Op Mod I'm a seasoned programmer and Engineer with quality experience in Flutter, React, Node.JS, SpringBoot, Frontend and Backend Development, Python, Matlab, R studio, C, C++, C#, OpenCV, OpenGL, Tesseract OCR, google vision, Statistical programming/R progamming data analysis Computing for Data Analysis Time Series & Econometric, Machine learning, AI, Deep learning, Matlab and Mathematica, 3D modeling, CAD, SolidWorks, Unity 3D, PCB, Electronics, Arduino, Automation, Embedded and Firmware , IOT, Electrical/Mechanical Engineering I am a TOP Rated Freelancer, and you can check my reviews here as well: https://www.freelancer.com/u/mzdesmag. Looking forward to potentially working together on this project. Thanks and Best regards, Adekunle.
$250 USD in 2 days
4.3
4.3

Hello, I see you want the full Bannerlord campaign to run as seamless two player co op, keeping quests, battles, leveling, trading, and management intact while each of you controls an independent character. I can deliver a custom module in C sharp with Harmony patches that adds host authoritative co op, client owned parties, synchronized quests and dialogues, deterministic world ticks, and Steamworks net code for low latency in big battles with graceful disconnect handling. Shared saves will be structured to avoid reload desync, and I will include clean join and leave prompts plus clear indicators for who controls each army, settlement, and dialogue choice, along with compiled files, source, a step by step guide, and a brief test report. If helpful, I can share a concise plan for sync, performance, and save integrity so we can align before I set up the first playable across the tutorial skirmish and a siege. Best regards, Remon
$500 USD in 2 days
3.4
3.4

I am a perfect fit for your project. With extensive experience in end-to-end software development and a strong focus on creating scalable solutions, I assure you high-quality results. Even though I'm new to Freelancer, I have successfully completed numerous projects off-site. Your vision of a seamless two-player experience in Bannerlord aligns perfectly with my expertise in custom module development and innovative problem-solving. Let's discuss your project further to explore how my skills can help you achieve your goals. Looking forward to collaborating with you on this exciting endeavor. Regards, Graham Valentyn.
$400 USD in 14 days
1.7
1.7

✅ IF YOU’RE NOT HAPPY YOU DON’T PAY ⚠️ “I’ve worked on a similar project to this and it was very successful. Your vision for a seamless two-player experience in Bannerlord is ambitious yet achievable. I understand the need for clean, professional, and integrated multiplayer functionalities that maintain core game elements. While I am new to Freelancer, I have over 12 years of industry experience and a proven track record of delivering complex projects successfully off-site. I offer expertise in developing custom modules, strong skills in C# and Harmony patches, and a commitment to ensuring 100% client satisfaction. I would love to chat more about your project! The worst that can happen is that you walk away with a free consultation from my 12 years of experience in the industry. Regards, Jason M"
$400 USD in 3 days
1.0
1.0

Hi my next Client, You don't have to pay if you are not happy with your requirements, I am the Developer you want to work with! Let's get you going. I understand your need for a custom two-player co-op mod in Bannerlord, maintaining core features and ensuring seamless integration. I offer extensive experience in networking, large-scale mods, and over 15 years of off-site project success. I would love to chat more about your project! Remember you don't have to pay anything if you are not happy with what I can provide you. Regards, Daniel van Vuuren
$500 USD in 5 days
0.8
0.8

Hello, Good afternoon . I’m excited to help you with Bannerlord Full-Feature Co-Op Mod! I have solid experience in Game Development, Game UI, Game Design, Game Testing, Modding, Software Development, Unity and C# Programming and have done similar projects. My Approach: I break every project into clear, realistic milestones, communicate proactively, and deliver well-tested, efficient solutions that are easy to maintain and scale. Scope of Work (SOW): In-depth requirement analysis Design and development with modern best practices Rigorous testing and performance optimization Secure deployment and clear documentation Ongoing support if required I’m confident I can help turn your ideas into a robust and successful product. Let’s discuss your goals and how I can best contribute to your project. Best regards, Roshan J.
$550 USD in 7 days
0.0
0.0

I was thrilled to discover your project, as it perfectly aligns with my expertise in crafting impactful solutions. Your need for a custom module to enable seamless two-player co-op in Mount & Blade II: Bannerlord deeply resonates with my ability to deliver clean, professional, and user-friendly systems. I specialize in modding and networking, focusing on creating efficient solutions. While new to Freelancer, I lead a current website overhaul for a US-based client ensuring a modern, user-friendly experience. I’d love the opportunity to discuss your project further and work towards a successful collaboration. Best, Declan
$450 USD in 14 days
0.0
0.0

Hello, I have checked your job description, and I’m confident I can complete exactly what you need. I have extensive experience with modding, game design, and development, particularly in creating seamless multiplayer experiences for games like Mount & Blade II: Bannerlord. My skills in C# programming and familiarity with Unity will facilitate a smooth transformation of the single-player campaign into a fully functional co-op mode. Your project requirements, including the need for synchronized play, independent character progression, and minimal latency during battles, are well within my expertise. I understand the importance of maintaining a clean user interface and ensuring that shared saves operate without desync issues. I believe this project is an ideal match for my skills and experience. Please send me a message so that we can discuss more. Best regards, Andrii
$600 USD in 2 days
0.0
0.0

EXPERT ((Game Development, Unity, Game Design, C# Programming, Game UI, Game Testing, Modding and Software Development)) DEAR EMPLOYER, I’ve completed the exact same projects before successfully. Awarding me will be the fastest way to complete your task with the best rates possible. I CAN ASSURE YOU 100% THAT WE ARE FULLY CAPABLE OF EXECUTING ANY LEVEL OF TASK/PROJECT BASED ON THE SKILL REQUIRED. I am fully confident about our skills and my understanding of the project description and we are ready to go through any test or sample task you assign to acquire your trust. Let me know when are you available for an initial 15-30-minute discussion (FREE OF CHARGE) so we can discuss the requirement in detail and I can walk you through the mentioned systems to acquire your trust in my skill. REST ASSURED YOUR WORK IS IN VERY SAFE AND PROFESSIONAL HANDS. THANK YOU
$250 USD in 2 days
0.0
0.0

Hello, Drawing from my 20 years in the field of software development and the diverse projects I have undertaken across multiple industries, I believe I am uniquely positioned to deliver on your Bannerlord coop mod request. Being a senior developer, technical architect and enterprise architect, I've managed projects with complexity similar to what you're requesting before. I not only grasp the underlying technical aspects but also appreciate the business implications of system design choices, ensuring that the solution is not just functional but also scalable, secure and future-proof. Beyond my broad programming skillset which includes C#, .NET and Harmony patches, I have proven experience working on large-scale sandbox mods with robust sync, performance and save integrity protocols. For instance, I have successfully implemented solutions for cloud-native applications and netcode optimization in gaming environments. My work delivering co-op capabilities in complex scenarios has made me highly skilled in constructing solutions that ensure minimal latency even in large battles or during unexpected disconnections. My approach to client work has always been geared towards developing a long-term partnership. This entails clear communication, reliability and solution-driven design; all of which are essential components when it comes to turning your vision into reality in this intricate project. To demonstrate this, beyond providing compil Thanks! Hakan
$600 USD in 1 day
0.0
0.0

I'm here to help bring your project to life by creating a custom Bannerlord mod that seamlessly transforms the single-player campaign into a two-player co-op experience, allowing independent character play with intact core elements like quests, battles, and trading. While I am new to freelancer, I have tons of experience and have done other projects off site. I would love to chat more about your project! Regards, Jaco Fourie
$400 USD in 14 days
0.0
0.0

Greetings, This project sounds fantastic – transforming Bannerlord’s single-player campaign into a truly engaging two-player co-op experience. I’ve worked extensively with Harmony and C# modding for Mount & Blade titles, focusing on robust netcode and persistent world states. I’ve successfully created similar co-op modules for titles like Medieval Dynasty, ensuring seamless synchronization and player independence. I’m confident I can deliver the compiled mod files, source code, installation guide, and thorough test report you require. I’d be delighted to discuss the specifics of your vision and answer any questions you may have. Let’s schedule a quick call to delve deeper into the project’s requirements.
$500 USD in 5 days
0.0
0.0

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