PC · Multiplayer
Soul Fighters
Gameplay & Multiplayer Programmer
Built the deterministic, rollback-safe online combat for a competitive 2D fighting game on Photon Quantum 2.
Case study
Unity · C# · Photon Quantum 2
Available for select Unity projects
Senior Unity Developer building production-ready games
Mario Antolovic — 7+ years delivering multiplayer, mobile, PC, Steam and WebGL projects, from gameplay systems and networking to optimization and publishing.
7+Years of experience
50+Projects delivered
Unity2D & 3D
MultiplayerPhoton Fusion / Quantum
PC · Mobile · WebGLShipping platforms
Selected work
Shipped games and production systems
A focused selection across multiplayer, RPG, mobile and Steam titles. Each links to a full case study with my exact role and the systems I built.
PC · Multiplayer
PC
Riviera: The Promised Land
Gameplay Programmer
Engineered the turn-based combat, quest and inventory systems for a Steam-released 2D RPG.
Case study
Unity · C#
PC · Multiplayer
SurfPunk
Gameplay Programmer
Developed enemy AI for an IGN-featured online action RPG built on Photon Quantum 2.
Case study
Unity · C# · Photon Quantum 2
PC · Multiplayer
Plush Fight League
Gameplay Programmer (Contract)
Built PvP brawler gameplay with Photon Quantum netcode and Solana wallet integration for an NFT game ecosystem.
Case study
Unity · C# · Photon Quantum
PC
Blood of Yamin
Gameplay Programmer (Indie Team)
Programmed gameplay and quest systems for an action-RPG metroidvania during its Kickstarter build-up.
Case study
Unity · C# · Corgi Engine
PC · Multiplayer
Lost in Pace
Solo Developer
Designed and built a physics-based multiplayer racing game with online play, AI opponents and bot backfill.
Case study
Unity · C# · Photon PUN2
Android · Multiplayer
Snek Tournament
Gameplay & Backend Programmer
Shipped a multiplayer arcade snake game with online tournaments, leaderboards and a server-backed economy.
Case study
Unity · C# · Photon
Android
Who Needs a Hero?
Gameplay Programmer
Built enemy AI, inventory and core gameplay for a published Android RPG.
Case study
Unity · C#
Technical specializations
Where I add the most value
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.
Services
How I can help your project
Whether you're a studio hiring senior engineers or a founder who needs a reliable freelance developer, there's a clear way to work together.
Full Unity Game Development
Concept to shipped build across PC, mobile and WebGL.
Learn moreGameplay Programming
Controllers, combat, systems and mechanics that feel right.
Learn moreMultiplayer Implementation
Photon Quantum, Fusion and PUN2 netcode that stays fair.
Learn moreBug Fixing & Project Rescue
Fix blocking bugs, desyncs and stalled projects.
Learn morePerformance Optimization
Profile and fix frame-rate, memory and load bottlenecks.
Learn morePorting & Publishing
Bring your game to a new platform and get it on the store.
Learn moreTechnical Consultation
Architecture and networking guidance before you build.
Learn morePrototype Development
Fast, playable prototypes to validate a mechanic.
Learn moreProof & trust
Verifiable, published work
Credibility over claims. These are live, checkable links to shipped games and profiles.
Shipped on Steam
Titles including Riviera: The Promised Land, Blood of Yamin, Soul Fighters and SurfPunk — with public Steam pages.
Published on stores
Multiple games live on Google Play and the iOS App Store, from RPGs to arcade and puzzle titles.
Testimonials & client logos: space is reserved for verified client testimonials and studio logos (used with permission). These will be added as approvals are collected — nothing here is invented.
Process
A clear, professional workflow
From first conversation to post-launch support — you always know what's happening and what's next.
Discovery
We clarify goals, scope, platforms and constraints so the plan fits your project.
Technical plan
I define the architecture, tooling and milestones before writing production code.
Development
Modular, tested systems built in visible increments you can follow.
Testing
Functional, edge-case and platform testing — including online cases for multiplayer.
Delivery
A stable, documented build handed off, or shipped to the store.
Post-launch support
Fixes, iteration and live-support work after release when you need it.
Let's talk
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.