Hire the Best Mobile Game Developers

I’m a Unity Game Developer with 100+ Unity-based games, mobile games, video games, AR/VR applications, and interactive experiences built from scratch for startups, small businesses, and enterprise clients. As a Unity developer, I’ve worked on Game Development, Mobile Game Development, Video Game Software, AR & VR Development, Augmented Reality, Virtual Reality, Photon Unity Networking, and cross-platform projects for iOS, Android, PC, Windows, Steam, and VR devices. 𝙃𝙤𝙬 𝙄 𝘾𝙖𝙣 𝙃𝙚𝙡𝙥 𝙔𝙤𝙪: 1️⃣ Unity Game Development: I build complete Unity games and mobile games with smooth gameplay mechanics, clean scenes, engaging UI, strong performance, and scalable project structure. 2️⃣ Mobile Game Development: I develop mobile games and interactive apps for iOS and Android using Unity and C#, making sure the game runs smoothly across smartphones, tablets, and mobile platforms. 3️⃣ AR/VR Development: I create AR applications, Augmented Reality experiences, Virtual Reality projects, and AR & VR interactive solutions for training, education, entertainment, simulation, and business use. 4️⃣ Online Multiplayer & Photon Unity Networking: I can integrate multiplayer features, real-time gameplay, user systems, matchmaking, and online game functionality using Photon Unity Networking and Unity multiplayer tools. 5️⃣ Bug Fixing, Optimization & Game Improvement: I fix bugs, clean up Unity projects, improve performance, reduce load times, optimize gameplay, and make existing games feel smoother, faster, and more polished. 6️⃣ Game Prototypes & Full Builds: I help turn ideas into playable game prototypes, MVPs, demos, and complete video games ready for testing, pitching, or launch. 𝙆𝙚𝙮 𝘼𝙘𝙝𝙞𝙚𝙫𝙚𝙢𝙚𝙣𝙩𝙨: 🔹 Built 100+ Unity games, mobile games, AR/VR apps, and interactive applications. 🔹 Delivered a Unity mobile game with 50,000+ downloads. 🔹 Improved Unity game performance by up to 40% through debugging and optimization. 🔹 Integrated AR/VR features and Photon Unity Networking multiplayer systems in 20+ projects. 🔹 Built game prototypes that helped startups present their ideas, test gameplay, and attract investor interest. 🔹 Worked with designers, developers, and business teams to deliver polished, scalable Unity projects on time. 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚: 🔹 Game Engines: Unity, Unity3D, Game Engine, Video Game Software 🔹 Game Development: Game Development, Mobile Game Development, Video Game, Game, Mobile Game 🔹 AR/VR: AR & VR, AR/VR Development, Augmented Reality, Virtual Reality, AR Applications, AR/VR Devices & Platforms 🔹 Multiplayer: Photon Unity Networking, online multiplayer, real-time gameplay systems 🔹 Platforms: iOS, Android, PC, Microsoft Windows, Steam, VR devices, smartphones, tablets 🔹 Tools & Languages: C#, Unity Editor, Visual Studio, Git, debugging tools, asset management 🔹 Services: Bug fixing, performance optimization, game prototypes, gameplay systems, UI, animations, project cleanup, and full Unity development The best way to start is with a free call and a quick review of your Unity game, mobile game, or AR/VR project needs. Send me a message, and I’ll help you figure out the best next step.

Hi, I'm Leo, a Top-Rated Plus Unity Developer with 13 years of experience. I've been a full-time freelancer on Upwork for over 9 years, maintaining 100% Job Success across 15,000+ hours. Clients rely on me for steady, responsive collaboration—I'm here every weekday, reply quickly, and keep projects moving. I take on both new builds and the work many developers shy away from: bringing legacy or broken Unity projects back to life. What I do best: • Gameplay Systems – Building puzzle mechanics, racing physics, casual games, VR/AR interactions, etc. • Integrations – Setting up ads, analytics, and platform tools (Meta Quest, SteamVR, VRChat, Map SDK). • Optimization – Profiling and fixing performance issues so everything runs smoothly on target devices. • Project Modernization & Rescue – Upgrading outdated Unity versions, fixing deprecated code, refactoring messy codebases, and porting old projects to modern platforms (WebGL, mobile, VR/AR). What clients say about working with me: "Didn't just follow instructions – added creative touches and smart improvements at every step." I focus on those extra details that make your project better. "Made everything easy and efficient... professionalism stood out." Clear communication and on-time delivery. "Always communicates... puts his heart into his work." Collaboration is smooth and straightforward. "Would hire again in a heartbeat." I aim to be your long-term partner. My specialties: • Fun games (Puzzles, Casual, Racing – Mobile / PC) • VR & AR experiences (Meta Quest apps and games) • Interactive tools and applications • Quick prototypes and test versions • Legacy project recovery, upgrades, and platform porting If you have an old Unity project that needs a steady hand, or a new idea you want built right the first time, let's talk. I'm ready to help bring it to life.

I’m a Unity Game Developer & Designer with 5+ years of professional experience building high-quality games and interactive experiences for mobile, PC, WebGL, AR, and VR platforms. I specialize in transforming ideas into polished, scalable, and visually engaging games — from gameplay systems and multiplayer networking to optimization, UI/UX, animations, VFX, and complete game architecture. I’ve worked on multiplayer games, racing games, simulation projects, AR/VR applications, real-money game systems, casual games, and large-scale Unity projects for both companies and international clients. My experience allows me to handle the full development cycle independently while maintaining production-level quality and performance. What makes me different is that I combine both technical development and creative game design skills, helping clients not only build games that work smoothly, but games that actually feel professional and enjoyable to play. Expertise *Unity 2D & 3D Game Development *Multiplayer Systems (Photon, Mirror, Netcode) *Mobile, PC & WebGL Optimization *AR & VR Application Development *Gameplay Systems & Game Mechanics *API Integration, Backend & SocketIO • Shader Graph, VFX & Particle Systems • Animation, Timeline & Rigging • Lighting, Post Processing & Environment Design • Blender 3D, Terrain & Level Design • UI/UX Design using Photoshop & Figma • 2D & 3D Animation Integration What You Can Expect *Clean, scalable, production-ready code *Fast communication and professional workflow • Strong focus on gameplay feel and user experience • High-quality visuals with optimized performance • Ability to handle complete projects from prototype to release --Whether you need a multiplayer game, mobile game, AR/VR experience, game prototype, or a complete polished product, I can help bring your vision to life with professional quality and attention to detail.

𝗧𝘂𝗿𝗻𝗶𝗻𝗴 𝗢𝗿𝗶𝗴𝗶𝗻𝗮𝗹 𝗖𝗼𝗻𝗰𝗲𝗽𝘁𝘀 𝗶𝗻𝘁𝗼 𝗚𝗹𝗼𝗯𝗮𝗹 𝗦𝘂𝗽𝗲𝗿𝗵𝗶𝘁𝘀 𝘄𝗶𝘁𝗵 𝟭𝟬+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗠𝗮𝘀𝘁𝗲𝗿𝘆. I am a Senior Unity Developer with over 10 years of professional experience and a portfolio of 100+ successfully launched titles. From high-fidelity Open-World games to highly optimized WebGL/Instant-Play experiences, I build for 𝗠𝗼𝗯𝗶𝗹𝗲𝘀, 𝗣𝗖𝘀, 𝗧𝗮𝗯𝗹𝗲𝘁𝘀, 𝗖𝗼𝗻𝘀𝗼𝗹𝗲𝘀, 𝗮𝗻𝗱 𝗪𝗲𝗯. My work is fully compatible with 𝗦𝘁𝗲𝗮𝗺, 𝗶𝗢𝗦, 𝗪𝗲𝗯𝗚𝗣𝗟, 𝗚𝗼𝗼𝗴𝗹𝗲 𝗣𝗹𝗮𝘆, 𝗮𝗻𝗱 𝗖𝗼𝗻𝘀𝗼𝗹𝗲 𝗡𝗲𝘁𝘄𝗼𝗿𝗸𝘀. Message me now for a 𝗙𝗿𝗲𝗲 𝗗𝗲𝗺𝗼 𝗼𝗿 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝘆 𝗖𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻. Let’s build your vision! ✅ 𝗘𝗫𝗣𝗘𝗥𝗧 𝗚𝗔𝗠𝗘 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 & 𝗘𝗡𝗚𝗜𝗡𝗘𝗘𝗥𝗜𝗡𝗚 • 𝗟𝗲𝗮𝗱 𝗨𝗻𝗶𝘁𝘆 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿: Expert in 𝗨𝗻𝗶𝘁𝘆 𝟲, URP, HDRP, and DOTS/ECS for massive performance. • 𝗖𝗼𝗱𝗶𝗻𝗴 𝗠𝗮𝘀𝘁𝗲𝗿𝘆: Advanced C#, C++, Python for AI integration, and Rust for high-speed backends. • 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Expert in 𝗟𝗟𝗠 (𝗚𝗣𝗧-𝟰/𝗚𝗲𝗺𝗶𝗻𝗶) NPCs, AI-driven procedural generation, and Unity Sentis. • 𝗠𝘂𝗹𝘁𝗶𝗽𝗹𝗮𝘆𝗲𝗿 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴: Photon Fusion, PUN2, Mirror, Unity Netcode, and Dedicated Server management. • 𝗖𝗿𝗼𝘀𝘀-𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺: Seamless deployment across Android, iOS, Windows, Mac, Linux, and WebGL. 🎨 𝗘𝗫𝗣𝗘𝗥𝗧 𝗚𝗔𝗠𝗘 𝗗𝗘𝗦𝗜𝗚𝗡 & 𝗖𝗥𝗘𝗔𝗧𝗜𝗩𝗘 𝗧𝗢𝗢𝗟𝗦 • 𝗨𝗜/𝗨𝗫 𝗗𝗲𝘀𝗶𝗴𝗻: Immersive Spatial UI, Mobile-first UX, and responsive layouts for all aspect ratios. • 𝟯𝗗/𝟮𝗗 𝗔𝗿𝘁: Blender modeling, Adobe Photoshop, Illustrator, and Substance Painter texturing. • 𝗔𝗻𝗶𝗺𝗮𝘁𝗶𝗼𝗻: Procedural rigging, Timeline, Cinema 4D, and Shader Graph for high-end visual effects. • 𝗚𝗮𝗺𝗲 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲: Modular, data-driven design patterns for long-term scalability and clean code. 💰 𝗠𝗢𝗡𝗘𝗧𝗜𝗭𝗔𝗧𝗜𝗢𝗡, 𝗣𝗨𝗕𝗟𝗜𝗦𝗛𝗜𝗡𝗚 & 𝗔𝗗𝗦 • 𝗚𝗼𝗼𝗴𝗹𝗲 𝗔𝗱𝗺𝗼𝗯: Interstitial, Banners, App Open Ads, and Rewarded Video integration. • 𝗨𝗻𝗶𝘁𝘆 𝗔ds & 𝗜𝗿𝗼𝗻𝗦𝗼𝘂𝗿𝗰𝗲: Advanced LevelPlay mediation and yield optimization strategies. • 𝗔𝗽𝗽𝗹𝗼𝘃𝗶𝗻 / 𝗙𝗮𝗰𝗲𝗯𝗼𝗼𝗸 𝗔𝗱𝘀: High-conversion ad integration and event tracking for ROAS. • 𝗜𝗔𝗣 𝗦𝘆𝘀𝘁𝗲𝗺𝘀: Recurring subscriptions, consumables, and secure server-side payment validation. • 𝗦𝘁𝗼𝗿𝗲 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁: Full handling of App Store Connect, Google Play Console, 🌐 𝗔𝗗𝗩𝗔𝗡𝗖𝗘𝗗 𝗧𝗘𝗖𝗛, 𝗪𝗘𝗕𝟯 & 𝗕𝗔𝗖𝗞𝗘𝗡𝗗 • 𝗖𝗹𝗼𝘂𝗱 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: PlayFab, Google Firebase, AWS GameLift, and custom Node.js/ASP.NET servers. • 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀: GameAnalytics, AppsFlyer, and custom data-driven game balancing tools. 🎮 𝗗𝗘𝗧𝗔𝗜𝗟𝗘𝗗 𝗚𝗘𝗡𝗥𝗘 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 𝟭) 𝗔𝗰𝘁𝗶𝗼𝗻 & 𝗖𝗼𝗺𝗯𝗮𝘁: FPS/TPS, Battle Royale, and Fighting games with tight physics. 𝟮) 𝗢𝗽𝗲𝗻-𝗪𝗼𝗿𝗹𝗱 𝗔𝗱𝘃𝗲𝗻𝘁𝘂𝗿𝗲: Massive world streaming, mission systems, and crafting logic. 𝟯) 𝟯𝗗 𝗥𝗮𝗰𝗶𝗻𝗴: Realistic vehicle physics, drifting mechanics, and competitive AI opponents. 𝟰) 𝗦𝗶𝗺𝘂𝗹𝗮𝘁𝗶𝗼𝗻 & 𝗧𝘆𝗰𝗼𝗼𝗻: Complex resource systems, AI worker logic, and offline progression. 𝟱) 𝗜𝗻𝘀𝘁𝗮𝗻𝘁 𝗣𝗹𝗮𝘆 & 𝗪𝗲𝗯𝗚𝗟: Ultra-optimized builds for Poki, CrazyGames, and Facebook Gaming. 𝟲) 𝗔𝗥/𝗩𝗥/𝗫𝗥: Immersive experiences for Meta Quest 3, Vision Pro, and Industrial VR Training. 𝟳) 𝗣𝘂𝘇𝘇𝗹𝗲 & 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝘆: Grid-based logic, Match-3, Roguelike deck-builders, and turn-based AI. 𝟴) 𝗛𝘆𝗽𝗲𝗿𝗰𝗮𝘀𝘂𝗮𝗹: Satisfying game loops, swipe controls, and rapid-level prototyping. 𝟵) 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻𝗮𝗹 & 𝗞𝗶𝗱𝘀: Interactive learning, quizzes, and COPPA-compliant safety standards. 𝟭𝟬) 𝗦𝗮𝗻𝗱𝗯𝗼𝘅 & 𝗠𝗠𝗢: Player-driven economies, building systems, and persistent worlds. 𝗪𝗛𝗔𝗧 𝗜 𝗗𝗘𝗟𝗜𝗩𝗘𝗥 𝗖𝘂𝘀𝘁𝗼𝗺 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Full end-to-end production from GDD concept to final store launch. 𝗚𝗮𝗺𝗲 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻: Draw call batching, memory profiling, and frame rate stabilization. 𝗥𝗲𝘀𝗸𝗶𝗻𝗻𝗶𝗻𝗴 & 𝗣𝗼𝗹𝗶𝘀𝗵: High-end asset overhauls and UI/UX modernization for existing titles. 𝗕𝘂𝗴 𝗙𝗶𝘅𝗶𝗻𝗴 & 𝗥𝗲𝗳𝗮𝗰𝘁𝗼𝗿𝗶𝗻𝗴: Cleaning legacy code and fixing complex multiplayer synchronization bugs. 𝗪𝗛𝗬 𝗣𝗔𝗥𝗧𝗡𝗘𝗥 𝗪𝗜𝗧𝗛 𝗠𝗘? 𝗤𝘂𝗮𝗹𝗶𝘁𝘆-𝗙𝗶𝗿𝘀𝘁: I write clean, documented, and modular code that developers love to work with. 𝗥𝗮𝗽𝗶𝗱 𝗜𝘁𝗲𝗿𝗮𝘁𝗶𝗼𝗻: Frequent updates, playable builds, and agile project management. 𝗣𝗿𝗼𝘃𝗲𝗻 𝗦𝘂𝗰𝗰𝗲𝘀𝘀: My expertise is backed by a consistent track record of high-retention releases. 𝗟𝗶𝗳𝗲𝘁𝗶𝗺𝗲 𝗦𝘂𝗽𝗽𝗼𝗿𝘁: I provide post-launch maintenance, updates, and scalability advice. 𝗦𝗲𝗮𝗿𝗰𝗵 𝗧𝗲𝗿𝗺𝘀: Unity Developer, Lead Game Developer, Senior Unity Developer, Unreal Engine 5 Expert, Multiplayer Game Engineer, WebGL Optimization, AI Game Integration, Meta Quest Developer, AR/VR Expert, Playable Ads Developer, Expert Unity Developer, Game Developer, Senior Game Developer, Web Games, PC Games

Game Programmer / Game Designer / Unity Developer / QA Tester Everything about me: Hello. I am George Moutran 1) Unity Game Development and Design: As a versatile game designer and skilled programmer, I bring a comprehensive understanding of game development to every project. With hands-on experience across various game development fields, I specialize in designing engaging gameplay mechanics, crafting detailed game design documents, implementation and improving overall game quality and user experience. I have a deep passion for the creative and technical aspects of game development, making me proficient in both design and programming. This combination allows me to seamlessly communicate my ideas with other developers, ensuring that the vision for the game is executed efficiently and cohesively. Whether it's developing advanced mechanics, optimizing game flow, or refining user interaction, I am dedicated to delivering games that captivate players and provide a rewarding experience. My Game Developer Skills: 3+ years of experience on the Unity Engine Strong C# Programming skills Problem solving skills Technical writing and documentation Implementation Narrative Design System Design Strong communication skills Driven by passion and determination Relevant Degree: Bachelor in Computer Science 2) QA Testing: I am experienced with quality assurance and testing technics. Creating test cases, running tests, documenting results and analyzing data are some of the technics i use to test non-game and game applications. My QA skills: Document checklists for each application function tested. Document and run test cases . Analyze application feedback and find missing features and system flaws. Detailed bug reports through any project management app. Ensure information is clear for developers to easily fix problems Relevant Certificates

I have over 10 years experience, including working at Zynga across Harry Potter: Puzzles & Spells, Wizard of Oz, and FarmVille — designing and tuning live games played by tens of millions of players. My work covers levels, features and mechanics, progression models, onboarding — all intended to improve the user experience and optimize player retention Some examples of situations I'm a strong fit for: • Games that need stronger progression, onboarding, or early retention • Products needing help designing features, mechanics or events • Teams looking for level design work, progression flow planning • Teams exploring A/B testing, connecting player psychology to analytic outcomes • Products in soft launch or live ops that need clearer structure and better player flow • Developers who need practical design documentation, audits, or actionable recommendations 💡Core Expertise: • Level Design & Guiding Design Principles • Core Systems, Mechanics & Feature Design • Progression/Pacing Structuring & Economy Systems • FTUE tutorials & Onboarding Optimization • Retention, Monetization & UX Audits • LiveOps & Performance Refinement • Game Design Documentation & Production Specs • Competitive Analysis & Design Consultations Services I provide: 🔹 Level Design Creation & Cadence Tuning Hands-on level creation and win-rate calibration for both new and live products, balancing learning pressure, satisfaction, retention, and monetization. 🔹 Gameplay, Mechanics & Feature Design Design and refinement of core systems and features — from early concept structuring to stabilizing underperforming live content. 🔹 Progression & Economy Architecture Structured progression and economy design that supports long-term engagement, retention pacing, and sustainable monetization. 🔹FTUE & Early Retention Optimization Onboarding and tutorial design that builds player confidence, aligns early difficulty, and improves D1–D7 performance in both new and existing products. 🔹 Design Strategy, Product Reviews & Retention Audits Targeted product analysis to identify progression risks, UX friction, and balance gaps — delivering clear, actionable improvement plans. 🔹 LiveOps Planning & Content Cadence Recurring event and content systems that sustain engagement and revenue without burning out players. 🔹 GDDs, Specs & Spreadsheet Documentation Clear, detailed production-ready documentation that can be used to strengthen the foundations or outlines of levels, concepts, features or systems 🔹 Puzzle Design & F2P Performance Expertise Over 15,000 levels built and tuned across live environments with tens of millions of players. Deep experience calibrating win-rate cadences, progression pacing, FTUE structure, and monetization pressure to strengthen retention stability and player confidence at scale. ✅ I’m available for both hourly or project-based work. If you have a defined scope, an idea that needs structuring, or need a focused review, feel free to reach out or send a contract directly.