Northstar Tech Man
Available for freelance projects
Unity · Unreal Engine 5 · Three.js
I'm Mateusz Belkner. I develop immersive 2D and 3D games, custom gameplay systems, and interactive experiences across PC, mobile, and the web.
01 / About
Mateusz Belkner
Game Developer · Northstar Tech Man
“I create immersive 2D and 3D games, custom gameplay systems, and interactive experiences — combining creative design with reliable game engineering.”
I'm a game developer specializing in Unity, Unreal Engine 5, and Three.js, helping indie studios, startups, and businesses bring interactive ideas to life.
My work covers gameplay mechanics, character controllers, combat systems, AI, multiplayer features, interactive 3D environments, and performance optimization.
I focus on creating responsive, engaging, and maintainable experiences across PC, mobile, and browser platforms.
Whether the project involves a playable prototype, an existing game that needs improvements, or a new interactive application, I approach development with attention to gameplay quality, technical reliability, and clear communication.
Responsive controls, satisfying feedback, gameplay mechanics, and engaging player interactions.
Designing maintainable gameplay systems, resolving technical challenges, and improving existing projects.
Developing interactive environments, cameras, lighting, physics, shaders, and optimized rendering.
Creating experiences for Windows, macOS, iOS, Android, and modern web browsers.
Transforming concepts into playable prototypes and progressively refining features.
Clear communication, organized implementation, and practical integration with existing teams.
02 / Publisher
Open for new projects in Unreal Engine 5, Unity and the 3D web. Pick an engine to see what I build with it — then start your project.
Available for freelance projects· UE5 · Unity · Web 3D
Start a project
Engine 01 · UE5
Cinematic 3D worlds with C++ and Blueprint gameplay
Open for UE5 projects
Immersive 3D gameplay development with Unreal Engine 5, C++, and Blueprints, including character controllers, combat mechanics, AI, and real-time environments.
03 / Selected Work
Explore selected game development and interactive 3D projects, showcasing gameplay programming, technical systems, visual experiences, and platform-specific development.
Showing 8 of 11 projects · games, XR, game art and 3D apps
Explore the full archive04 / Experience
The development services I offer — what each one involves and the capabilities it brings to a project.
Service
01 · Service
Development of 2D and 3D games using Unity and C#, including character movement, physics, interfaces, gameplay mechanics, and multiplayer features.
Service
02 · Service
Immersive 3D gameplay development with Unreal Engine 5, C++, and Blueprints, including character controllers, combat mechanics, AI, and real-time environments.
Service
03 · Service
Interactive browser-based 3D applications, web games, virtual showrooms, and engaging real-time experiences.
Service
04 · Service
Multiplayer functionality including player synchronization, cooperative mechanics, networking integrations, and online systems.
Service
05 · Service
Mobile gameplay systems, touch-friendly interfaces, platform integration, and performance-focused implementation.
Service
06 · Service
Improving existing games through bug fixing, performance profiling, feature integration, and gameplay refinement.
Process · The Route
Every project follows the same five waypoints, each with deliverables you can review before the next one starts.
Understand the game concept, target audience, gameplay objectives, technical requirements, and project scope.
Deliverables · Project Scope · Technical Requirements · Development Plan
Build initial gameplay mechanics and validate the core experience with an early playable build.
Deliverables · Playable Prototype · Core Mechanics · Initial Feedback
Implement gameplay systems, UI, environments, interactions, and platform-specific functionality.
Deliverables · Gameplay Features · System Integration · Development Builds
Improve gameplay feel, fix bugs, optimize performance, and test the experience.
Deliverables · Optimized Gameplay · Bug Fixes · Quality Improvements
Prepare final builds, project documentation, and an appropriate handoff.
Deliverables · Playable Build · Project Files · Documentation
For Studios · Startups · Entrepreneurs
Have a new game idea, an existing prototype, or a project that needs additional development expertise? I help turn creative concepts into functional, enjoyable, and technically reliable interactive experiences.
Core mechanics and technical systems designed around the player's experience.
Development for PC, mobile, and web technologies.
Structured milestones, practical communication, and reviewable builds.
Attention to performance, stability, maintainability, and gameplay polish.
Planning materials can be prepared for a specific project once we've talked. Request what you need and I'll follow up.
Concept, audience, and production approach for a specific project.
Milestones from prototype to launch, with scope per phase.
Effort and cost breakdown aligned to the roadmap.
Hands-on build access for evaluation, where available.
05 / Establish Connection
Let's turn your concept into a playable experience.
Whether you need a new game, gameplay mechanics, multiplayer features, or technical improvements, I'd love to hear about your project.
Available for freelance projects
Your details are used only to reply to your message.
Northstar
Tech Man
Gathering assets
Tip ·Tap the beacon above the castle to call the North Star.
