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Summary I am looking for a game developer or company that already has a READY-MADE mobile game available, preferably a car, fruit, roulette-style, or similar multiplayer game. I am NOT looking to develop a game from scratch. The game must be ready or nearly ready and capable of being customized and integrated directly into my existing iOS and Android application. We already have our own users, backend, wallet/coin system, servers, and development team. The game must support integration with our existing accounts and wallet through API, including balance deduction, payouts, rounds, results, history, and settlement. WebView-only solutions are not preferred. Full source-code ownership is NOT mandatory; licensing is acceptable as long as the game can operate reliably inside our application and integrate with our systems. I am open to a one-time purchase or licensing agreement, but I prefer no revenue share or GGR percentage. Please DO NOT send a proposal to build a new game from scratch. Only contact me if you already have a working game or existing game system. Send me a video, screenshots or live demo, integration method, price, licensing terms, and estimated integration time.
Project ID: 40690099
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93 freelancers are bidding on average $6,753 USD for this job

Hi, This is an integration and system-fit project, not a full new game build. The main risk is ensuring the existing game connects cleanly to your wallet, round flow, result settlement, and history without disrupting the current app experience. For a multiplayer car/fruit/roulette-style game, the API handshake and server-side settlement logic are more important than visuals. I work with ready-made Unity mobile game systems and can adapt existing gameplay for app integration, account sync, balance deduction, payouts, round results, and replay/history tracking. My first step would be to review the source structure, identify where game state is handled, and confirm how your backend expects transactions and results to be posted so the game runs reliably inside your iOS/Android app. Initial focus: review existing game flow map API points for wallet and settlement check round, result, and history handling confirm mobile build and integration path test stable app embedding Could you confirm whether the game needs real-time communication with your backend during each round, or only at settlement and final result posting?
$5,087 USD in 28 days
9.4
9.4

Hello, I read your requirements carefully and understand that you are looking for a READY-MADE MOBILE CAR/GAME SYSTEM, not a game developed from scratch. I have 11+ years of experience in mobile and game development and can provide an existing solution that can be customized and integrated into your current iOS and Android applications. I can handle API integration with your existing users, wallet/coin system, balance deduction, payouts, rounds, results, history, and settlement while keeping the integration native rather than WebView-only. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. I can provide the available game demo/video, screenshots, integration approach, licensing details, pricing, and estimated integration timeline for your review. I eagerly await your positive response. Thanks, Christina
$6,000 USD in 7 days
8.4
8.4

With over a decade of experience in full-stack architecture and high-scale systems, I understand your need for a custom mobile car game that can seamlessly integrate into your existing iOS and Android application. Leveraging my background in developing high-complexity systems, such as serving over 1 million users, I am well-equipped to tackle the challenges of customizing and integrating a ready-made game into your platform. Strategically, ensuring seamless API integration and balance management will be key to the success of this project. Drawing from my past success in deploying user-friendly solutions, like the Telegram Mini Apps, I am confident in my ability to deliver a game that meets your requirements and enhances your user experience. I encourage you to reach out to discuss how we can collaborate on this project further. Let's connect to explore the roadmap for integrating the perfect mobile car game into your application seamlessly.
$8,000 USD in 60 days
8.3
8.3

Your priority is a game module that plugs into an existing wallet and account system natively — not a WebView wrapper — with reliable round, result and settlement handling. I run real-time multiplayer platforms built on WebSockets with state machines and recoverable execution flows, plus payment pipelines covering balance deduction, payouts and commission tracking, so bet-lock, round-close and reconciliation edge cases are familiar territory. Approach: 1) I share a demo build (video plus TestFlight/APK) of an existing roulette/car-style multiplayer round engine; 2) we map your wallet and auth APIs into an adapter layer with idempotent debit/credit and history endpoints; 3) native SDK drop-in for your Swift and Kotlin apps, staged on staging servers before launch. Which game style fits your users best — roulette-style rounds or car racing?
$7,000 USD in 7 days
7.5
7.5

Hey there, I have carefully reviewed your project requirements. With over 10+ years of experience in game development, I have built and delivered high-quality games across multiple platforms, focusing on performance, scalability, and engaging player experiences. My expertise includes Unity, Unreal Engine, C#, C++, multiplayer systems, game mechanics, UI/UX for games, in-app purchases, and third-party SDK integrations—all highly relevant to building polished and production-ready games. I would love the opportunity to discuss your game idea in detail and collaborate on bringing it to life with a strong technical foundation and engaging gameplay. Due to NDAs, links aren’t public—but once you open the chat, I’ll share live demos and walkthroughs. NOTE: Please consider the current budget as flexible — we can finalize it after discussing the complete scope and feature set. Thanks & Regards, Kajal
$7,500 USD in 7 days
7.2
7.2

I can help you build this properly. For a Custom Mobile Car Game Development – Full Source Code & iOS/Android Integration -- 3, the key is not just the screens but keeping the API and platform-specific behavior stable across devices. The strongest positioning is showing we understand the delivery risk hiding behind the brief, not just the feature list. Key scope I would cover: Playable vertical slice and cause-effect gameplay loop; Creature rigging, animation quality, and habitat interaction design. If helpful, I can suggest a first vertical-slice milestone that proves the gameplay and animation direction. Quick question: What part of this build has caused the most delivery risk so far: architecture, integrations, or product clarity? Also, if we align on the core scope first, would you prefer the first milestone to focus on a stable MVP foundation or on feature breadth? Best, Dr. Syafiq
$7,500 USD in 21 days
7.1
7.1

Hello, I have carefully reviewed your requirements and understand that you need a READY-MADE multiplayer mobile game, not a new game built from scratch, with API integration into your existing iOS/Android app. With 9+ years of game development experience and 200+ successfully delivered games, I have extensive experience with multiplayer systems, wallet/API integration, native mobile games, and game customization. You will get: 1. Ready-made car, fruit, roulette-style or similar game 2. API integration with your existing wallet & accounts 3. Balance, payouts, rounds, results & settlement 4. History and transaction synchronization 5. Native iOS/Android integration 6. Demo, pricing, licensing terms & integration timeline I will share the available game demo and complete integration details. Available to start immediately. Come inbox & let’s get started. Best regards, Sohaib Pasn Games
$5,000 USD in 75 days
6.7
6.7

Hi, I can help you integrate a READY-MADE multiplayer mobile game into your existing iOS and Android applications. We have already developed similar gaming platforms and understand API-based wallet, account, game-round, payout, result, history, and settlement integrations. I can provide an existing/near-ready game solution such as car, fruit, roulette-style, or similar multiplayer gameplay and customize it to match your requirements. Development & Integration Steps: • Share game demo/source and finalize the suitable game • Customize gameplay, UI, branding, and configurations • Integrate your existing user authentication/account APIs • Connect wallet/coin balance, deduction, payouts & settlement • Integrate rounds, results, transaction history and callbacks • Test on iOS/Android and deploy into your existing apps We can work with a one-time purchase or licensing model without requiring GGR/revenue share. Which game type are you prioritizing—car, fruit, roulette, or another format? Can you share your existing wallet/API documentation so I can confirm the integration approach? I can also share relevant demos, screenshots, integration details, pricing, and estimated timeline. Thanks Rahul
$8,500 USD in 40 days
6.9
6.9

As an experienced game developer with a strong focus on mobile app development, I have a wealth of knowledge and skills that make me a perfect fit for your custom car game project. Notably, my portfolio has a wide range of successful Android and iOS game applications ready for deployment. I understand that you are not looking to build a game from scratch which is why my existing, ready-to-use game solutions would be ideal for your project. Moreover, I am well-versed in API integration, an indispensable aspect of your desired project. I can seamlessly connect the ready-made game to your current iOS and Android applications, ensuring a smooth end-to-end operation. My familiarity with backend systems, alongside proven competence in integrating servers and wallet/coin systems aligns directly with your needs, greatly simplifying and expediting the process for maximum efficiency. Ensuring that these functionalities are reliable while giving you control over branding through customization is a priority for me. I am highly efficient at understanding clients' specific requirements and tailoring products accordingly, quality-driven solutions is my consistent endeavor.
$6,500 USD in 30 days
6.7
6.7

Hello, I hope you are doing well. I understand that you are looking to build a MOBILE APPLICATION, and I would be happy to help. I have extensive experience in designing and developing applications and have successfully delivered many projects. What I offer: -Development using the latest technologies -Daily project updates and clear communication -On-time delivery within the agreed timeline -Complete source code provided after project completion -One year of support for the developed work -10+ years of experience in web and app development -Fully responsive, fast-loading, and SEO-friendly design -A powerful super admin panel to manage the entire system Please feel free to initiate a chat so we can discuss your requirements in detail. Thank you and regards, Dheeraj K.
$5,000 USD in 45 days
6.9
6.9

Hi,We understand you are specifically looking for a READY-MADE multiplayer game that can be integrated into your existing iOS & Android application—not a game built from scratch. We can help with existing game solutions suitable for customization and API-based integration with your current ecosystem, including: • Multiplayer car/arcade/fruit/roulette-style game options • Native integration for iOS & Android • API integration with your existing user accounts • Wallet/coin balance deduction & payouts • Round creation, results, history & settlement • Real-time game communication where required • Integration with your existing backend and servers • Customization of UI, branding and game parameters • Licensing or one-time purchase options • No WebView-only dependency We can provide a demo/video, screenshots, integration approach, pricing, licensing terms and estimated integration timeline for the available solution. Since you already have the users, wallet, backend and development team, we can focus specifically on getting the existing game connected reliably with your infrastructure. If you share your API documentation and preferred game type, I can show you the closest available ready-made solution and discuss the integration process.
$5,000 USD in 15 days
7.6
7.6

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer
$5,000 USD in 30 days
6.6
6.6

Hello, I understand you are looking for a ready-made multiplayer mobile game that can be customized and integrated into your existing iOS and Android application, rather than developing a new game from scratch. We have experience with mobile games, multiplayer systems, API integrations, wallets and real-time backend workflows. If you already have an existing game product available, we can integrate it with your accounts and wallet system, including balance deduction, payouts, rounds, results, history and settlement. I can provide the available game demo/video, screenshots, integration approach, licensing options, pricing and estimated integration timeline. I understand your preference for a one-time purchase or fixed license without revenue/GGR sharing. Please share your existing app/API integration requirements so we can confirm compatibility and proceed quickly. Thanks Invoke
$5,000 USD in 15 days
5.7
5.7

Roulette-style multiplayer with wallet API integration usually breaks at settlement, so that's where I'd start. Since you already have your users, wallet, and backend, the real work is the API layer: balance deduction on entry, round results, payouts, history, and clean settlement so a dropped round never double-charges a player. Native integration into your iOS and Android app, no WebView. Send me your wallet API docs and I'll map the exact call flow for one game before anything else. I have working game systems ready to customize and license (not a from-scratch build), and I'll send you a video, screenshots, licensing terms, and price in chat. Happy with a one-time or license deal, no revenue share or GGR. Which game type do you want first, car or roulette, and does your wallet API already expose a hold/deduct call or just a balance read?
$5,000 USD in 20 days
5.5
5.5

hello there , I understand you are NOT looking for a game to be developed from scratch. You need an existing, working multiplayer mobile game that can be customized and integrated into your current iOS/Android application. We can provide an existing game solution suitable for integration, with: • Car / fruit / roulette-style multiplayer gameplay options • Native iOS & Android integration — not WebView-only • API integration with your existing account system • Wallet/coin balance deduction and payouts • Round creation, results, history & settlement • Integration with your existing backend, servers and wallet • Custom branding/UI and required gameplay configuration • One-time purchase or licensing options • No GGR/revenue share preferred • Source code/licensing terms clearly defined We can share game video/demo, screenshots, integration/API documentation, pricing and licensing terms for the available solution. Since you already have the users, wallet, backend and development team, our focus would be on providing the existing game and completing the API/native integration quickly. Please share your current API/wallet documentation so we can confirm compatibility and provide an accurate integration timeline. thanks
$5,000 USD in 25 days
5.2
5.2

Hello, I have already completed similar mobile gaming projects involving existing multiplayer games, iOS and Android integration, APIs, wallets, user accounts, rounds, results, and settlement workflows. I have strong experience in web development, APIs, and scalable software solutions. I understand that you are looking for a ready made game rather than development from scratch, and I can focus on integrating the existing game with your accounts, wallet, balance, payouts, history, and backend. Do you already have a preferred game type, or are you open to the best available option based on integration and licensing terms? I can quickly understand your existing setup and deliver exactly what is needed. Let us schedule a quick meeting to review the game demo, API requirements, and integration process. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira
$7,500 USD in 7 days
5.0
5.0

As an accomplished Full Stack Developer and AI Solutions Expert, I'm confident that I am the RIGHT FIT for your custom mobile car game project. My 8+ years of industry experience and successful delivery of over 200 projects make me well-versed in handling complex development tasks, including API integrations. My expertise includes Mobile App Development using Flutter for both Android and iOS platforms - ensuring a seamless integration into your existing framework. Additionally, my strong grasp on Laravel, React, PHP, WordPress will prove instrumental in customizing and enhancing your current system to work in harmony with the game. Beyond just creating a functional game, I understand the need to build sustainable and scalable solutions that work for your business. Therefore, rest assured that I will provide clean, tailored code that responds to what your business already has in place -- an essential factor you're looking for. In conclusion, choosing me means hands-on experience, meticulous attention to detail, and a commitment to delivering on-time and on-budget. Let's chat about your project details so we can get started on building something spectacular together!
$7,500 USD in 7 days
4.8
4.8

With over 9 years of dedication to transforming ideas into reality, my team and I have become well-versed in mobile app and game development. More specifically, we have accumulated a wealth of experience in **Mobile Car Game Development** similar to what you seek. In fact, we have a ready-made game available that can be tailored to your needs while being seamlessly integrated into your iOS and Android applications. One crucial aspect of our service that sets us apart is our emphasis on efficiency. We understand importance of time in propeling any project and therefore the capacity for rapid customization and integration with your existing systems is something we can confidently offer. Additionally, as you prefer ownership of the full source code or licensing I want to assure you that, regardless of the choice, our game will operate reliably within your application while maintaining compatibility with your existing accounts and wallet through API. Finally, you will benefit not only from our skills but also cost-effectiveness as we offer hosting solutions and affordable domain management options should they be needed. Furthermore, our commitment pledge includes three months of free support post delivery thus ensuring an assurance that we're there when any assistance is needed. With us, you can expect a partnership focused on turning your vision into tangible fulfillment.
$7,500 USD in 7 days
5.2
5.2

Hello, "Ready-Made Mobile Game Integration" - integrate an existing multiplayer game into your iOS/Android app and wallet Your requirement is integration, not a new game. I can handle the API layer for accounts, balances, rounds, results, payouts, history, and settlement, with server-side validation to avoid client-side balance manipulation. Before bidding further, do you already have the game build/source available for integration, or are you specifically looking for a ready-made game supplier? Artur Gizycki
$6,000 USD in 14 days
4.3
4.3

READY-MADE MOBILE GAME INTEGRATION I understand that you are specifically looking for an existing, working multiplayer game rather than a new game development project. I can work within that requirement and focus on integrating a proven game system into your existing iOS and Android application. The key requirement would be reliable API integration with your existing accounts, wallet and backend, including balance deductions, payouts, rounds, results, history and settlement. I would also verify the integration architecture, native SDK/API support, performance, licensing terms and deployment requirements before proceeding. I’m open to either a one-time purchase or fixed licensing arrangement and understand that revenue-share/GGR models are not preferred. I can provide the relevant game demo, screenshots/video, integration documentation, pricing and estimated integration timeline for evaluation before any commitment.
$5,000 USD in 7 days
4.1
4.1

United States
Member since Sep 4, 2026
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