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Ocean View Games
C# Game Development

C# Game Development

The foundation of everything we build in Unity

C# Is Our Primary Tool

Unity uses C# for gameplay scripting. Our Unity work, from game development and co-development to mobile porting and performance optimisation, is built on deep C# expertise.

David Edgecombe, our director, is a Unity Certified Expert who has written C# professionally for over a decade. That depth of experience means we do not just write C# that works; we write C# that performs, scales, and is maintainable by the next team who touches it.

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Why C# for Game Development

Unity's Native Language

All gameplay systems, editor tools, and runtime logic in Unity are written in C#. It is not one option among many; it is the only option for serious Unity development.

Strong Typing & Modern Features

C#'s type system catches bugs at compile time rather than at runtime. Modern language features such as pattern matching, nullable reference types, and records improve readability and reduce errors.

Performance Improvements

Recent C# versions introduced Spans, ref structs, and source generators that bring near-native performance to managed code. These features are especially valuable in tight game loops.

Large Ecosystem

Thousands of NuGet packages, extensive documentation, and a massive community of developers. Finding solutions, libraries, and talent is straightforward.

Cross-Platform by Design

The same C# codebase runs on mobile, PC and WebGL, without maintaining a separate codebase for each platform.

Easy Handover

C# is widely taught and well documented. When we hand a project back to your internal team, they can read, understand, and maintain the code without specialised training.

Our C# Expertise

Architecture & Design Patterns

Clean code, SOLID principles, dependency injection, event-driven systems, and component-based architecture. We write code that scales and that other developers can pick up without a week of onboarding.

Performance-Critical C#

Object pooling, struct-based data, Burst-compatible code, and zero-allocation hot paths. On mobile, a single GC spike can drop frames and drain battery. We profile first and optimise where it matters.

Networking in C#

Server-authoritative game logic, custom serialisation, and state synchronisation built in C# through FishNet and custom networking layers. Every networked system we ship is designed to be cheat-resistant and bandwidth-efficient.

Editor Tooling

Custom Unity Editor tools, inspectors, and build pipeline automation written in C#. We build tools that speed up development for the whole team, not just ourselves. Faster iteration means faster delivery.

Testing & Quality Assurance

Unit testing game systems with NUnit, integration testing, and automated QA scripting. Automated tests catch regressions before they reach players and give your team confidence when refactoring.

Cross-Platform Compilation

Same C# codebase compiled for iOS, Android, PC and WebGL. Platform-specific code is isolated behind abstraction layers, keeping the core logic clean and portable.

C# in Our Projects

Domi Online

Server-authoritative MMORPG architecture built entirely in C#. 64-bit progression systems that bypass standard integer limits, custom serialisation for networked gameplay, and a FishNet networking layer supporting 1,000+ concurrent players. Read the case study.

Educational Games

C# gameplay systems built for Cambridge University Press, Museum of London, and EU Horizon 2020 projects during our team's previous employment. Clean, maintainable code designed for long-term institutional use, with multi-language support and accessibility features baked in.

Mobile Optimisation

C# profiling and refactoring to eliminate GC spikes, reduce frame time, and improve thermal performance on mobile devices. Our performance optimisation work consistently delivers measurable improvements on low-end hardware.

Legacy Code Rescue

Taking over poorly structured C# codebases from other developers, refactoring for readability and performance, and shipping the project. Our legacy modernisation service is built on years of experience rescuing stalled projects.

C# Code Quality Standards

Naming & Structure

Consistent naming conventions and project structure across every file. No guesswork for the next developer who opens the solution.

Documentation

XML documentation on public APIs. Self-documenting code where possible, explicit documentation where it matters.

No Shortcuts

No magic numbers, no god classes, no spaghetti. Every class has a single responsibility. Every method does one thing well.

Version Control

Meaningful commits, feature branches, and pull requests on every project. Your commit history tells a story, not a mess.

Code Reviews

All production code goes through review before it ships. Two sets of eyes on every change reduces bugs and improves design.

Automated Testing

NUnit test suites for core game systems. Automated tests catch regressions before they reach production, saving time and money.

When You Need Senior C# Developers

Your internal team is junior and needs a senior C# developer to set the architecture, establish patterns, and mentor the team.

You have inherited a Unity project with messy C# code and need someone to refactor it into something maintainable before adding new features.

You are building multiplayer and need C# networking expertise to implement server-authoritative game logic with FishNet or custom networking layers.

Your game runs poorly on mobile and you need C# performance optimisation to eliminate GC spikes, reduce frame time, and improve battery life.

You need a co-development partner who writes C# to a standard your team can maintain long after the engagement ends. Learn about our co-development service.

Related Services

Unity Game Development

Full-cycle game development in Unity and C#, from prototype to launch across mobile, PC, and console.

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Co-Development

Senior C# engineers embedded directly in your team. Same tools, same standup, same repo.

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Performance Optimisation

C# profiling, GC elimination, and frame time reduction for mobile and cross-platform Unity projects.

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Legacy Modernisation

Codebase rescue, refactoring, and modernisation of legacy C# Unity projects.

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Why OVG

Senior C# and Unity engineers compared against in-house hiring, freelancers, and offshore agencies.

Why OVG

Related Technologies

Unity logo

Unity

Our primary game engine

Unity 6 logo

Unity 6

Latest LTS release

Frequently Asked Questions
Unity uses C# as its scripting language. While Unity's engine core is written in C++, all gameplay logic, systems, and tooling are built in C#. For Unity projects, C# delivers the right balance of performance, productivity, and maintainability. When performance-critical code needs to run closer to the metal, we use Unity's Burst compiler, which compiles a subset of C# (HPC#) to highly optimised native code.
Yes. The common misconception is that managed languages are too slow for mobile. In practice, the bottleneck is almost always architecture, not language. By avoiding GC allocations in hot paths, using object pooling, struct-based data, and Burst-compiled jobs, we achieve frame rates and thermal profiles comparable to native code. Our mobile optimisation work consistently eliminates GC spikes and reduces frame times on low-end devices.
Every project follows consistent naming conventions, project structure, and architecture patterns from day one. Public APIs include XML documentation. All production code goes through pull request reviews. We use NUnit for unit testing and maintain automated test suites for core systems. The result is a codebase your team can maintain long after our engagement ends.
Our focus is Unity game development, so C# is always used within that context. That said, we have experience building standalone C# tools, build pipeline automation, server-side game logic, and backend services in C# where the project requires it. If your project needs C# work outside Unity, we are happy to discuss scope.

Need Help With a Complex C# Codebase?

Tell us about the project and where you need help with architecture, performance, maintainability, tooling or gameplay systems.

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