Hi, I'm Mario — a senior Unity developer
I build production-ready games and the systems that make them work: multiplayer netcode, RPG mechanics, gameplay architecture, and the optimization and debugging that gets a project shipped.
Over 7+ years and 50+ delivered projects, I've worked as a solo developer, a freelance contractor and part of indie teams — shipping to Steam, Google Play, the App Store and the browser. I'm a certified Unity developer based in Croatia, working remotely with studios and clients worldwide.
My approach is modular and pragmatic: clean, scalable C# that's easy to extend, systems designed so new features don't break old ones, and honest communication about scope and timelines. Whether it's a Photon Quantum real-time game, a turn-based RPG with deep stat systems, or a shop simulator with custom save/load, I build systems that are production-ready — and I build them fast.
A senior engineer who owns hard systems
If you're hiring, you're looking for someone who can take responsibility for difficult, production-critical systems and deliver them without hand-holding. That's my track record: shipped multiplayer netcode on Photon Quantum, RPG and progression systems, and the debugging skill to rescue projects when they stall. I integrate cleanly into existing teams and codebases, and I write code your engineers can maintain.
A reliable partner from idea to release
If you're a founder or studio without an in-house programmer, you need someone dependable who communicates clearly and delivers. I'll help you scope realistically, build the right thing, and take it all the way to the store — with honest advice at every step about what's worth building and what isn't.
What I work with
Multiplayer & Networking
Deterministic and session-based netcode on Photon Quantum, Fusion and PUN2 — rollback, prediction and desync debugging.
Gameplay Systems
Core loops, mechanics and modular systems architected to scale and stay maintainable.
Character Controllers & Combat
Responsive movement, ability frameworks and state-machine-driven combat.
RPG, Progression & Inventory
Turn-based and real-time RPG systems: quests, inventory, stats, save/load and progression.
Mobile & Platform Integration
Android and iOS delivery with store publishing and touch-first design.
Optimization & Debugging
Profiling-led performance tuning and custom tooling to reproduce hard bugs.
Full-Cycle Development
From prototype through production to a shipped, polished release.
Publishing & Live Support
Steam and mobile-store publishing, platform integration and post-launch iteration.
Need an experienced Unity developer for your project?
Tell me what you're building. I'll reply with a clear approach, realistic scope and honest timeline — no pressure, no jargon.