C# isn't just a language. It's the engine behind games, apps, servers, tools, AI systems and entire virtual worlds. New to programming entirely? Good — every tutorial here starts from zero.
// Make something happen. using System; class Program { static void Main() { Console.WriteLine("Hello, future."); Console.WriteLine("C# can build almost anything."); } }
From your first console app to multiplayer VR, C# scales with you. Here are a few places where it shines.
Power gameplay systems, physics, UI, multiplayer and VR experiences with engines like Unity.
UNITY + C#Build fast backends, REST APIs, real-time services and full web applications with .NET.
ASP.NET COREWrite tools that manipulate files, process data, launch programs and automate repetitive work.
SYSTEM.IOConnect models and services, process huge datasets and build intelligent application features.
ML.NET + .NETCreate cross-platform applications for desktop and mobile while sharing code between platforms.
.NET MAUIBuild your own editors, launchers, patchers, command-line tools and workflows.
DOTNET CLIA quick look at the ecosystem that turned C# into a general-purpose powerhouse.
C# was introduced by Microsoft as a modern, strongly typed language designed for the .NET platform.
The .NET ecosystem expanded across operating systems and became open source, making C# much more cross-platform.
Unity helped make C# a familiar tool for thousands of game developers, from tiny prototypes to huge projects.
Build a game. Make an app. Automate something. Create a server. The language is only the beginning.
The best way to learn C# is to give it a job to do. Ten tutorials are waiting, from your first variable to a multiplayer game.
Every tutorial opens as its own lesson with diagrams, real code, and a choice: read the full script, or build it piece-by-piece yourself.
A live, simplified C# console right in your browser. Pick an example below, or write your own — then hit RUN.
Make the console print the numbers 1 through 5, one per line.