David Chukwunyerem O.
Expert Unity Game Developer | 7+ Years Making Games for Mobile & PC
I’m a Unity/C# Game Developer with 7+ years of experience building mobile and PC games, from rapid prototypes to production-ready releases. I specialize in gameplay programming, mobile game development, multiplayer systems, SDK integrations, optimization, bug fixing, reskins, rapid prototyping and full-cycle Unity development. My work includes Tunnel Digger, a paid client game that was later published by Crazy Labs, as well as recent projects including Cannon Demolish Sort, Paper Plane Race, Bullet Paint and RiftShot: CyberHunt. I’ve also delivered paid multiplayer development using Photon PUN 2, including lobby and room systems, gameplay synchronization and multiplayer state handling. I can help with Unity 2D and 3D development, mobile and PC gameplay systems, hybrid-casual and hyper-casual games, multiplayer, Photon networking, SDK integrations, ads, analytics, IAP, optimization, debugging, reskins, UI, progression systems and full project development from concept to playable build. One of my strongest advantages is speed. I’ve spent years building games quickly even before AI-assisted development became common, and today I combine that experience with modern tools to prototype, test and iterate even faster without giving up control over the engineering or final quality. I’m comfortable joining an existing Unity project, understanding the codebase quickly, fixing problems and moving development forward, or taking a new idea from concept to a working build. If you need a Unity developer who can work independently, communicate clearly and actually get the game moving, feel free to send me the project details.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $569
Billed in all: $18,010$18k
$284 in the last 6 months
Across 21 contracts
Earnings, last 30 days
Skill rankings: Top 25% in Casual Game
Ranked by MRR among everyone on Upwork with the skill.
- #7Arcade Game22 freelancers · 🇳🇬 #1Top 32%🇳🇬#1 of 1
- #11Combat Game22 freelancers · 🇳🇬 #1Top 50%🇳🇬#1 of 1
- #21SDK50 freelancers · 🇳🇬 #4Top 42%🇳🇬#4 of 4
- #25In-Game Advertising98 freelancers · 🇳🇬 #2Top 26%🇳🇬#2 of 3
- #28Casual Game112 freelancers · 🇳🇬 #2Top 25%🇳🇬#2 of 3
- #120Photon Unity Networking334 freelancers · 🇳🇬 #1Top 36%🇳🇬#1 of 2
- #121PC Game296 freelancers · 🇳🇬 #4Top 41%🇳🇬#4 of 4
- #129Game Mechanics286 freelancers · 🇳🇬 #4Top 45%🇳🇬#4 of 9