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Updated Project Description (Recommended Final Version) I am looking for an experienced game developer (or team) to port an existing PC-based MMORPG to mobile platforms (Android & iOS). This is a large-scale online game, not a small or casual project. The full source code and all game assets are already available. This is not a remake, reimplementation, or new game — the task is to port, adapt, and optimize the existing PC game for mobile devices while preserving the original gameplay and architecture. The original game is written in C++ and uses a custom engine with a full client–server architecture. It includes real-time multiplayer systems such as character movement, combat, skills, items, UI systems, and network synchronization. Scope of Work Port the existing PC client to Android and iOS Adapt the control system for touch input (virtual joystick, skill buttons, gestures) Optimize performance for mobile hardware (CPU, GPU, memory usage) Adapt UI/UX for multiple screen sizes and resolutions Ensure stable and efficient client–server communication on mobile Maintain original game logic, mechanics, and balance Required Skills Strong, proven experience with C++ Experience in mobile game development (Android and/or iOS) Solid understanding of game engines, rendering pipelines, and performance optimization Experience with online / networked multiplayer games Ability to work with large existing codebases Preferred Qualifications Prior experience porting PC games to mobile Familiarity with MMORPG systems Experience with OpenGL, Vulkan, Metal, or similar graphics APIs Additional Notes Source code and assets will be provided after NDA, if required The project is expected to take multiple months; unrealistic short timelines are not acceptable Milestone-based development is preferred Long-term collaboration is possible based on performance Please include relevant previous projects or portfolio links This project requires serious engine-level and multiplayer experience. Please apply only if you have worked on complex game systems, not small or casual mobile games.
Identyfikator projektu: 40198361
66 ofert/y
Zdalny projekt
Aktywny 3 dni temu
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66 freelancerzy składają oferty o średniej wysokości $7 353 USD dla tej pracy

Hello I have designed AI image workflows for commercial use. I’m also a game developer with 10+ years of experience, including engine-level C++ development and porting complex PC games to mobile. I’ve worked on performance-critical multiplayer projects, maintaining original game logic while adapting UI and input for mobile. My approach is structured and practical: first I map the existing client architecture, then define a porting plan that preserves core systems (combat, movement, networking, item logic) while adapting rendering and UI for mobile constraints. I use a phased port strategy: build & compile → touch controls → rendering optimization → networking stabilization → QA & device testing. For controls, I implement customizable virtual joystick + action buttons with gesture support, keeping the same gameplay feel. For performance, I optimize CPU/GPU usage, reduce draw calls, streamline asset loading, and implement memory budgeting to prevent crashes on low-end devices. Networking is stabilized by adapting packet handling, optimizing sync rates, and ensuring mobile latency resilience. UI is redesigned for multiple screen sizes with responsive layouts and scalable fonts. I can start immediately, provide regular milestones, and share previous porting work upon NDA.
$5 000 USD w 7 dni
8,4
8,4

I HAVE WORKED ON SIMILAR PC-TO-MOBILE GAME PORTING PROJECTS INVOLVING C++ ENGINES AND REAL-TIME MULTIPLAYER SYSTEMS. I carefully reviewed your requirements and clearly understand that this is a direct mobile port of an existing PC-based MMORPG, not a remake. With 10+ years of hands-on experience in C++, engine-level development, and online multiplayer systems, I can efficiently adapt your current client for Android and iOS while preserving all original game logic and mechanics. My approach includes touch-optimized controls (virtual joystick, skills, gestures), UI/UX scaling for multiple screen sizes, and deep performance optimization for mobile CPU, GPU, and memory constraints. I have solid experience working with large C++ codebases, custom engines, rendering pipelines, and maintaining stable client-server communication in real-time environments. Development will follow Agile methodology with clear milestones. I will provide complete source code, assist from zero to store publishing, and include 2 years of free ongoing post-launch support. NDA is acceptable, and I am open to long-term collaboration. I eagerly await your positive response. Thanks
$5 000 USD w 7 dni
8,3
8,3

As a seasoned Full Stack Developer, I can bring your MMORPG mobile porting project to life. My expertise in cross-platform mobile development, including Android and iOS, will enable me to successfully reimagine your existing game for mobile devices while maintaining its original game logic and mechanics. My proficiency with C++ and familiarity with game engines, rendering, and optimization aligns perfectly with the technical requirements outlined in your project description. Moreover, my knowledge of networked/online multiplayer games will ensure stable client-server communication within the context of mobile gaming. I bring valuable experience in porting PC games to mobile, which will prove advantageous during the adaptation process. Additionally, my understanding of MMORPG systems - a nice-to-have for this task - places me at an enhanced vantage point to create an engaging mobile gaming experience. In conclusion, I approach projects with not just technical expertise but also a partner-first mindset. I'm focused on clear communication, reliable delivery, and long-term support. Given the potential for long-term collaboration highlighted in your description, my commitment to building the right solution for your platform alligns perfectly with your needs. My past clients can attest to the quality and scalability I bring to my work. Let us
$7 500 USD w 20 dni
7,4
7,4

I have extensive experience in Mobile App Development, iPhone, Android, Game Design, and C++ Programming, making me a great match for the MMORPG Mobile Porting Project. I am confident in my ability to adapt the existing game for mobile platforms, optimize performance, and ensure stable client-server communication. The budget can be adjusted after discussing the full project scope, and my priority is to work within your budget. Please review my 15 years of experience in my profile to see my past work. I am eager to start and showcase my commitment to this project. Looking forward to hearing from you.
$7 000 USD w 21 dni
6,9
6,9

Hi there, ★★★ Mobile App Development / C++ Programming Expert ★★★ 9+ Years of Experience ★★★ To successfully port the existing PC-based MMORPG to mobile platforms, I will follow these key steps: 1. Analyze the existing codebase and architecture to understand the game mechanics and client-server interactions (10 hours) 2. Adapt the controls for touch input by implementing virtual joysticks, buttons, and gestures (15 hours) 3. Optimize performance for mobile hardware focusing on CPU, GPU, and memory usage (20 hours) 4. Adjust the UI/UX for various screen sizes and resolutions to ensure a seamless user experience (15 hours) 5. Test the client-server communication on mobile to ensure stability and performance (10 hours) 6. Conduct thorough testing to ensure the game logic and mechanics remain intact (15 hours) What I need from you: 1. Access to the full source code and game assets after NDA (if necessary) 2. Any specific requirements or preferences for mobile controls and UI/UX design 3. Information on the existing server infrastructure and any other dependencies for the porting process. I look forward to connecting at your convenience to ensure the project's success. Best Regards, TechPlus Team
$10 000 USD w 11 dni
6,5
6,5

Hi there, I am excited about the opportunity to port your existing MMORPG to mobile platforms. As a top California freelancer with extensive experience in game development, I have successfully completed several similar projects, consistently earning 5-star reviews. I understand the complexity of adapting and optimizing a C++ game for both Android and iOS, and I am well-equipped to maintain the integrity of your original game while enhancing it for mobile play. In addition to my strong C++ programming skills, I have a solid background in mobile game development, particularly with networking and real-time multiplayer dynamics. My approach will focus on optimizing performance for mobile hardware, adapting touch controls, and ensuring stable client-server communication while preserving the game logic and mechanics you’ve crafted. I would love to discuss this project further and understand your specific needs better. Please message me right away! What are the key features you are most concerned about maintaining during the porting process?
$9 160 USD w 10 dni
5,5
5,5

Having read through your project description thoroughly, I believe I'm the perfect fit to execute this porting project successfully. In terms of my technical skills, not only do I have a strong background in C++, which is essential for this task, but I also possess extensive acumen in mobile game development, specifically for Android and iOS platforms. My experience entails working with large codebases and optimizing performance to cater for mobile hardware limitations. Furthermore, I'm well-versed with MMORPG systems which serve as a bonus for this assignment. Applying my knowledge in OpenGL, Vulkan or similar graphics APIs can effectively optimize performance on mobile devices by carefully managing CPU & GPU usage, as well as memory efficiency. Undoubtedly, this is a serious engine-level task that requires someone who has worked on complex game systems rather than small or casual mobile games. With my extensive skills in C++ programming and mobile app development having been refined over several years and with proven success on various projects, you can count on me to handle your project yielding not just satisfactory but top-notch results.
$5 000 USD w 7 dni
5,3
5,3

Hello, I have reviewed the details of your project. i will study the existing c plus plus codebase and the custom engine to understand game flow rendering input and network flow. i will keep all game logic unchanged and focus only on the client side adaptation for android and ios. the mobile client will stay connected to the same client server model using the current protocol to keep gameplay behavior identical. for mobile support i will compile the core c plus plus code using android ndk and xcode for ios. the rendering layer will be adapted to opengl es and metal to match mobile gpu limits while keeping visual quality consistent with the pc version. draw calls texture size memory use and update loops will be reduced to match mobile cpu and gpu limits. touch input will replace keyboard and mouse using a virtual joystick action buttons and gesture handling mapped directly to existing movement and combat systems. ui will be resized using relative scaling so it works across phones and tablets without changing layout logic. network code will be tuned for mobile connections by handling latency spikes reconnect flow and background resume states. Let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira
$7 500 USD w 7 dni
5,1
5,1

Hello As per your project post you are looking to port a full-scale PC-based MMORPG to mobile platforms, preserving the original gameplay, mechanics, and client server architecture. The goal is to adapt the existing C++ codebase and assets for Android and iOS while optimizing performance, touch controls, UI/UX, and network synchronization for mobile devices. My focus will be on delivering a robust mobile version of your MMORPG by porting the PC client, implementing virtual joystick and skill button controls, optimizing CPU/GPU and memory usage, adapting UI for multiple screen sizes, and ensuring stable client–server communication. The original game logic, balance, and real-time multiplayer systems including character movement, combat, skills, and items will remain intact. Development will follow milestone-based progress for transparency and quality assurance. I specialize in mobile game development with extensive experience in C++, performance optimization, and porting large-scale games across platforms. My team has worked with networked multiplayer systems, real-time gameplay mechanics, and graphics APIs like OpenGL, Vulkan, and Metal, ensuring smooth adaptation of PC titles to mobile while maintaining original player experiences. Let’s connect to define porting milestones, control adaptations, and optimization priorities to deliver a high-quality mobile MMORPG experience. Best regards Nikita Gupta
$5 000 USD w 45 dni
5,1
5,1

Hello, Transitioning a full scale MMORPG from PC to mobile is a high stakes architectural challenge that demands more than just a simple port. It requires a deep understanding of your custom C++ engine and its complex client server synchronization. My approach focuses on preserving the original gameplay logic while rebuilding the rendering pipeline to excel on mobile hardware. I will ensure high performance on both Android and iOS by optimizing memory usage and adapting graphics for Metal and Vulkan. I plan to implement a responsive virtual control system and redesign the complex UI for smaller touchscreens to maintain the depth and balance of the original experience. Beyond the technical porting, I offer long term post launch maintenance and support to ensure the game evolves with mobile OS updates. My billing is structured through clear professional milestones to ensure transparency and project health. I am ready to dive into your codebase and bring this massive world to mobile players with the seriousness this scale of project deserves. Waiting for your message. Best regards, Enes Koksal
$8 500 USD w 7 dni
4,8
4,8

Hello As a game and mobile app engineer with over a decade of experience in the app and gaming industry, I bring a unique and comprehensive skill set to this project. From my ten-plus years working with C++ to my proficiency in Unity3D and Unreal Engine, as well as mobile game-specific tools like React Native and Flutter, I've honed a thorough understanding of game engines, rendering pipelines, and performance optimization, which aligns perfectly with your MMORPG Mobile Porting Project. In addition to my technical expertise, I have an exceptional ability to work with large existing codebases — an asset given that the full source code and game assets are already available. My notable achievements include optimizing rendering pipelines that improved frame rates by 40% on a VR project, implementing AI systems for a top-selling strategy game, and leading development on five+ successful apps and games, each with 1M+ downloads. Best Regards, Timothy B.
$8 500 USD w 90 dni
4,8
4,8

I’m very interested in porting your PC-based MMORPG to mobile platforms. I have extensive experience with C++ and large-scale game engines, including client–server multiplayer architectures. My expertise includes adapting controls for touch interfaces, optimizing rendering pipelines for mobile CPUs and GPUs, and maintaining original game mechanics, balance, and network synchronization. For this project, I would carefully port the existing PC client to Android and iOS, ensuring stable, efficient client–server communication while optimizing UI/UX for various screen sizes and resolutions. Performance optimization will focus on CPU, GPU, and memory usage, preserving the original gameplay experience across devices. My approach is milestone-based, ensuring each stage—porting, input adaptation, optimization, and testing—is validated before moving to the next. I have previously worked on large-scale multiplayer games and complex C++ codebases, including real-time combat and skill systems. I am comfortable signing an NDA to review your source code and assets and can commit to a long-term collaboration to deliver a stable, production-ready mobile version of your MMORPG. Kind regards, Jiayin
$7 500 USD w 7 dni
4,8
4,8

This is exactly the kind of engine-level, non-trivial porting work I specialize in, and I appreciate how clearly you’ve scoped it. I’m a C++ game developer with deep experience working inside custom engines, not just Unity/Unreal wrappers. I’ve handled large legacy codebases with client–server architectures, real-time networking, combat systems, and performance-critical rendering loops. I’m comfortable preserving original gameplay logic while adapting the platform layer cleanly. For this port, my approach would be: Isolate platform-specific layers (input, windowing, graphics, audio, threading) and refactor them for Android/iOS Implement touch-first controls (virtual joystick, skill buttons, gestures) without altering core mechanics Optimize CPU/GPU usage with mobile-appropriate threading, batching, memory pools, and texture formats Adapt rendering to OpenGL ES / Vulkan (Android) and Metal (iOS) while keeping visuals faithful Ensure network stability under mobile conditions (latency, backgrounding, reconnects) I’ve worked on online multiplayer titles and understand MMORPG constraints: tick rates, prediction, bandwidth, and synchronization. I’m comfortable signing an NDA and can share relevant PC-to-mobile and C++ engine work privately. I’m also open to long-term collaboration if this phase goes well. If you want someone who can actually open the engine and do the work, I’m ready.
$5 111,11 USD w 7 dni
4,0
4,0

Hello Already have something live to show you I am professional mobile software engineer with skills including Web Design, PHP, Website Development, Content Writing, Elementor, HTML, WordPress and Website Design. Please send a message to discuss more about this project. Always happy to hear from you Thanks
$7 500 USD w 7 dni
3,8
3,8

Hello, I am Vishal Maharaj, a seasoned game developer with 20 years of expertise in Game Design, C++ Programming, Game Development, Android, and iPhone platforms. I have thoroughly reviewed your project requirements and am confident in my ability to successfully port the existing MMORPG game to mobile platforms. To achieve this, I will meticulously analyze the existing PC client code, adapt touch controls, optimize performance for mobile hardware, adjust UI/UX elements for various screen sizes, ensure stable client-server communication, and maintain the original game logic and mechanics. My extensive experience in C++, mobile game development, and networked multiplayer games equips me to deliver a high-quality porting solution. I am eager to discuss this project further. Please feel free to initiate a chat to delve into the details. Cheers, Vishal Maharaj
$8 000 USD w 40 dni
3,2
3,2

Hi, I’m Karthik — 10+ years of experience in C++ systems, game architecture, and large-scale software porting. I understand this is a serious MMORPG mobile porting effort, not a remake or casual game. With full source code and assets available, my focus would be on faithfully porting and optimizing the existing PC client to Android & iOS while preserving gameplay, balance, and the client–server architecture. How I’ll approach this: Analyze the existing C++ codebase and custom engine Port the PC client to Android/iOS with minimal logic changes Adapt controls for touch (virtual joystick, skills, gestures) Optimize rendering, memory, and CPU/GPU usage for mobile Refactor UI for multiple screen sizes and orientations Ensure stable, efficient multiplayer sync and networking on mobile Maintain original mechanics, combat, and progression systems Why I’m a good fit: Strong hands-on experience with C++ and large codebases Background in engine-level development and performance optimization Experience with real-time, networked systems Comfortable with long-term, milestone-based delivery Realistic timelines — quality and stability first I’m happy to work under NDA, follow a phased milestone plan, and collaborate long-term if the fit is right. Relevant technical experience and portfolio links can be shared on request. If you’re looking for someone who understands the complexity of MMORPG systems, I’d be glad to discuss this further.
$9 999 USD w 7 dni
3,2
3,2

Hi there! Are you expecting the mobile version to support cross-platform play with the PC client right from launch? Regardless, this is definitely something that I feel confident delivering on, given my past experience. I would love to discuss your project further! Looking forward hearing from you. Kind Regards, Corné
$5 000 USD w 14 dni
2,5
2,5

Hi there, Excited to help bring your MMORPG to mobile! With deep expertise in C++ and mobile game optimization, I’ll port your existing game smoothly, ensuring seamless touch controls, solid performance, and a polished mobile UI—while preserving all core mechanics and multiplayer features. I’ve handled similar projects and am happy to share my portfolio. Let’s discuss your vision and get started!
$7 500 USD w 5 dni
2,2
2,2

Hello, I’ve read your MMORPG mobile porting brief and I’m confident I can adapt your C++ custom-engine PC client to Android and iOS while preserving original game logic, multiplayer behavior, and assets. I combine engine-level C++ expertise and mobile performance tuning (CPU/GPU/memory), practical touch-input design, adaptive UI scaling, and robust networking. I also bring experience building structured, secure server-side systems with ASP.NET Core/C# to help stabilize client-server communication and simplify cross-platform integration. My plan is to map engine entry points, implement a touch input layer, profile and optimize rendering paths, and run iterative network stress tests so the mobile client behaves like the PC original. Are the server protocols and client networking docs available, and which game system (movement, combat, UI) should I prioritize for the first mobile test build? Sincerely, Cindy Viorina
$5 000 USD w 18 dni
2,1
2,1

Hi , Thanks for posting your mobile app project! I’m a mobile app project lead working with an experienced team of iOS & Android developers, skilled in Vulkan, Game Design, iPhone, Android, Game Development, OpenGL, C++ Programming and Mobile App Development. Ready to build a stable, scalable app. Please message me to discuss the project details. Looking forward to working with you. Best regards, Ihor
$8 325 USD w 1 dzień
0,0
0,0

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