Usman K.

10+ years building and shipping Unity games for Android & iOS. 100+ Upwork jobs with 5-star feedback. I build complete 2D/3D games, take over existing Unity projects, and integrate AI/LLMs, multiplayer, custom backends, monetization, and live ops. If you need someone who can handle more than one isolated part of a game, that's where I fit best. I work across the full stack, from gameplay, UI/UX, VFX, audio, and Unity frontend systems to multiplayer, databases, cloud infrastructure, analytics, monetization, and production releases. I can help with: • Full mobile game development from idea to release • MVPs, prototypes, and vertical slices • Existing Unity project takeover and continued development • Gameplay systems, bug fixing, refactoring, and optimization • AI/LLM integration and AI-powered game experiences • NPC behavior, state systems, pathfinding, and traditional game AI • Multiplayer, real-time chat, voice chat, and social systems • Custom game backends and server infrastructure • Firebase, PlayFab, analytics, push notifications, and Remote Config • IAP, rewarded ads, mediation, and monetization • Android/iOS optimization and production releases A FEW REAL PROJECTS 🎮 Cash Life: Mobile Life Simulation / Idle Tycoon A published Android/iOS game with 40K+ downloads and around 35% D1 retention. My work spans the product end-to-end: Unity development, gameplay, UI/UX, VFX, audio, frontend systems, backend architecture, live features, monetization, analytics, and ongoing development. Backend technologies include Socket IO, MySQL, Redis, Docker, and AWS. Cash Life is still evolving, so my experience goes beyond prototypes, I maintain, improve, and grow live products after real players arrive. 🎮 Sky Climb: 3D Mobile Parkour Game A published Unity mobile game featuring climbing and parkour, checkpoints, jetpacks, grappling, ziplines, collectible currencies, unlockable characters, leaderboards, daily rewards, progression, monetization, VFX, and UI. 🧩 Clue Words: Vocabulary Puzzle Game A published contextual word game where players solve missing words using sentence meaning. I've also worked on intelligent/data-driven content systems that retrieve and process information for gameplay, useful for AI-powered content, contextual hints, adaptive puzzles, dynamic dialogue, and personalized experiences. 🤖 GAME AI + AI/LLM INTEGRATION I work with both traditional game AI and modern AI integrations. Traditional AI includes NPC behavior, decision systems, state-based logic, movement, and character interactions. For modern AI, I can connect games with LLM/API-driven systems for dynamic NPC conversations, context-aware characters, AI companions, intelligent hints, generated or retrieved content, adaptive gameplay, player-specific interactions, and custom AI mechanics. I also think beyond the API call: game state, structured responses, latency, failures, cost, moderation, persistence, fallbacks, and unexpected model responses. AI should feel like part of the game, not a chatbot glued onto it. ⚙️ BACKEND & LIVE SYSTEMS Experience includes Socket IO, MySQL, Redis, Docker, AWS, Firebase, PlayFab, custom game servers, player accounts, progression, leaderboards, cloud data, analytics, Crashlytics, messaging, and Remote Config. I've used PlayFab where it fits, and built custom backend systems where more control and flexibility were needed. 🌐 MULTIPLAYER & SOCIAL I've worked on racing multiplayer, synchronization, matchmaking/session logic, voice chat, message chat, reconnects, persistence, authority, and backend-connected game state. 💰 MONETIZATION Experience includes AdMob, AppLovin MAX, Appodeal, Unity Ads, Chartboost, rewarded ads, interstitials, banners, and Android/iOS In-App Purchases. I integrate monetization into the game economy and player flow, not just drop in an SDK and hope for the best. 🎯 GAME TYPES 2D and 3D experience across word/puzzle, casual, racing, adventure, RPG, simulation, and other mobile game genres. HOW I WORK I personally lead the technical work and stay involved. For larger scopes, I can bring in my team for development, backend, UI/UX, art, VFX, QA, or production support. If you already have a Unity project, I first understand the architecture, preserve what works, identify the real problem, and improve it without unnecessary rewrites. If you're starting with an idea, I can help turn it into a practical MVP before time and budget disappear into untested features. If you're adding AI to an existing game, I can help determine whether the best solution is an LLM, traditional game AI, backend intelligence, retrieval/data systems, or a combination. Have a game, prototype, source project, GDD, or difficult technical problem? Send me what you have and what's blocking you. I'll start there.