Mladen S.
Game Developer | Unreal Engine, Unity & Godot | Mobile, PC & VR
I develop games in Unreal Engine, Unity, and Godot for mobile, PC, and VR. I help with gameplay programming, debugging, optimization, and taking projects from prototype to release. I can also step into an existing game that needs fixing, finishing, or preparing for launch. I have 10+ years of Unreal Engine experience, working with C++, Blueprints, custom plugins, engine source modifications, and complex input and gameplay systems. My Unity experience includes client projects under NDA, and I’m currently developing my own VR game in Unity. I also use Godot for my own PC and mobile games. I can help with: • Gameplay mechanics and interactive systems • Unreal Engine C++ and Blueprint development • Unity and Godot game development • Debugging, performance optimization, and stability • 3D assets, animation, VFX, and visual polish • Completing and extending existing projects • Android and iOS builds, App Store and Google Play publishing I also bring over 20 years of professional experience as a 3D generalist. This background helps me contribute across programming and visual production, integrate assets into the engine, troubleshoot visual issues, and make technical decisions with both performance and visual quality in mind. Selected projects: • Ginst — a published Unreal Engine mobile music game trilogy for iOS and Android. My work includes core game systems, custom C++ plugins, engine source modifications, input management, debugging, VFX, graphics, and ongoing builds and store publishing. • Slasher Manager — my Godot game in development for PC, with a publicly playable demo on Steam. • Die Laughing — my published Godot mobile game. • Signal Lines — a published puzzle game built with Flutter and Flame, combining gameplay development with mobile development and store delivery. I also use AI-assisted workflows and build custom tools to support development. These include an Unreal Engine plugin that lets AI agents read complete graphs as JSON and create, connect, and modify nodes in Blueprints, Widget Blueprints, and other Unreal graph types. I’m Top Rated on Upwork with 100% Job Success and nearly 5,000 hours worked. Clients consistently highlight the quality of my work, clear communication, and reliability. Tell me what you’re building, where the project stands, and what you need help with. We can define a practical next milestone and work toward a playable, polished result.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $2.8k
Billed in all: $72,489$72k
$1.4k in the last 6 months
Across 149 contracts
Earnings, last 30 days
Skill rankings: Top 15% in 3D Game Art
Ranked by MRR among everyone on Upwork with the skill.
- #31Godot195 freelancers · 🇷🇸 #1Top 16%🇷🇸#1 of 5
- #40App Store Upload193 freelancers · 🇷🇸 #1Top 21%🇷🇸#1 of 1
- #47Google Play282 freelancers · 🇷🇸 #2Top 17%🇷🇸#2 of 9
- #97Software Debugging409 freelancers · 🇷🇸 #2Top 24%🇷🇸#2 of 5
- #132Mobile Game Development568 freelancers · 🇷🇸 #3Top 23%🇷🇸#3 of 6
- #144Virtual Reality785 freelancers · 🇷🇸 #2Top 18%🇷🇸#2 of 12
- #1693D Game Art1,115 freelancers · 🇷🇸 #2Top 15%🇷🇸#2 of 18
- #240Performance Optimization1,100 freelancers · 🇷🇸 #4Top 22%🇷🇸#4 of 12