Services
Freelance game development, Unity consulting, and full-stack engineering services backed by 16+ years of experience and AAA production at Ubisoft.
A Practice Built on Production Experience
Exoa is the solo practice of Anthony KOZAK — a senior game developer with 16+ years of professional experience spanning AAA titles at Ubisoft, 16 commercial Unity plugins on the Asset Store, and shipped games on mobile, PC, VR, and Switch. Every service offered here is grounded in real production work, not theory or tutorial-level understanding. The same codebase discipline that shipped Eagle Flight VR at Ubisoft applies to every client engagement, regardless of scale.
The common thread across all services is a bias toward practical, production-ready output. Whether that is a shipped game, a custom Unity tool, a web backend, or a code review report — the deliverable is always something your team can use immediately, not a slide deck or a proof of concept that needs to be rebuilt before it goes near users.
Who I Work With
Most engagements fall into one of three client profiles:
- Independent developers and small studios who need a senior specialist for a defined scope — a game build, a Unity plugin, a web backend — without the overhead of a full-time hire. Budget is finite; the value of getting the architecture right from day one is high.
- Mid-size studios with an existing team that need embedded technical direction, code reviews, or a specialist brought in for a specific platform or technology area: VR, performance optimisation, web infrastructure.
- Non-game businesses with game-adjacent needs — training companies building educational games, brands commissioning interactive web experiences, developers creating tools and assets for other Unity developers on the Asset Store.
If you are not sure which category fits your situation, or whether any of these services apply to your project, the fastest path is a direct conversation at no cost.
Engagement Models
Every project is different. Three engagement structures cover most scenarios:
- Fixed-price project: A defined scope, agreed deliverables, and a fixed total cost. Best for greenfield builds, code reviews, and audits where the scope can be clearly specified upfront. You know the final cost before work begins.
- Time-and-materials: A day rate applied to actual hours worked, invoiced weekly or bi-weekly. Best for longer engagements, embedded work within an existing team, or projects where scope is expected to evolve as requirements become clearer.
- Monthly retainer: Reserved capacity each month for ongoing maintenance, mentoring, or consulting. Best for live game support, ongoing code review cadences, or teams that want regular access to senior expertise without a per-project contracting cycle.
How I Work
- Discovery Call (30 minutes, free): We discuss your project, goals, constraints, and timeline. I ask the questions needed to scope accurately. You get a sense of whether I am the right fit. No obligation on either side.
- Scope and Proposal: Based on the call, I send a written proposal covering scope, deliverables, timeline, and pricing. Typically within 48 hours. Fixed-price projects include a detailed milestone breakdown.
- Build with Weekly Check-ins: Work begins on the agreed scope. You receive weekly progress updates, early builds or draft deliverables, and direct access via email or a shared Slack channel throughout. No black-box development periods.
- Launch and Post-Launch Support: Final delivery of assets or code with handover documentation. Fixed-price projects include a defined support period for bug fixes and questions. Retainer clients continue with ongoing access.
Custom Game Development
From prototype to shipped product — I build games that perform, feel great, and reach players on the platforms they use.
Learn moreUnity Asset Store Plugins & Custom Unity Tools
Production-quality Unity plugins and editor tools — built by a developer who has shipped, maintained, and supported over ten Asset Store products.
Learn moreVR / AR / MR Development for Meta Quest and OpenXR
From Eagle Flight at Ubisoft to Meta Quest indie titles — I've been building immersive VR and MR experiences since the first consumer headsets shipped.
Learn moreFull-Stack Web Development with React and Laravel
Game infrastructure demands serious web development — leaderboards, live dashboards, admin tools, APIs. I build web systems that serve games and creators at scale.
Learn moreUnity Code Review, Performance Audits & Architecture Consulting
An expert second pair of eyes on your Unity codebase — finding performance bottlenecks, architectural risks, and code quality issues before they become production problems.
Learn moreUnity Development Training and Mentoring
Accelerate your Unity development with structured training and mentoring grounded in real production experience — not just theory.
Learn moreNot sure which service fits?
Tell me about your project and I'll recommend the right approach. Free 30-minute discovery call.
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