The Wayback Machine - https://web.archive.org/web/20160329003107/https://www.unrealengine.com/what-is-unreal-engine-4
 

If you love something,

Set it free

Unreal Engine is now FREE

FREE for game development. FREE for Virtual Reality.
FREE for education. FREE for architecture. FREE for film.

FREE for game development.
FREE for Virtual Reality.
FREE for education.
FREE for architecture.
FREE for film.

Get Unreal

Pay a 5% royalty on games and applications you release. We succeed when you succeed.

What is Unreal Engine 4?

Unreal Engine 4 is a complete suite of game development tools made by game developers, for game developers. From 2D mobile games to console blockbusters and VR, Unreal Engine 4 gives you everything you need to start, ship, grow and stand out from the crowd.

  • Mobile

    Mobile

    Designed for mobile, now and in the future. From simple 2D games to stunning high-end visuals, Unreal Engine 4 gives you the power to develop your game and seamlessly deploy to iOS and Android devices.

  • Blueprints

    Blueprints

    Blueprint visual scripting enables you to rapidly prototype and build complete games, simulations and visualizations without the need for programming. Blueprint tools and a visual debugger are included with Unreal Engine 4.

  • Tools

    Tools

    The Unreal Editor is a fully integrated suite of tools for building every aspect of your project. Advanced features include physically-based rendering, UI, level building, animation, visual effects, physics, networking, and asset management.

  • SourceCode

    Source Code

    Every Unreal Engine 4 developer has access to the complete C++ engine and editor source code. Having full source code gives you the power to customize your game, and makes it easier to debug and ship. Join Epic Games and the Unreal Engine community in updating and extending more than three million lines of code available on GitHub.

  • Virtual Reality

    Virtual Reality

    Visual fidelity combines with high performance to create engaging, immersive VR experiences in UE4. Our rendering pipeline gets you to 90 Hz stereo framerate at high resolutions with no code changes required, while scalable tools mean you can develop everything from simple scenes to complex cinematic environments. All with an iteration speed that makes your creative process easier. 

  • SourceCode

    Marketplace

    Accelerate your development with sample games and scenes, art and audio, Blueprint logic, and even C++ code. Buy content to add to your project, or create and sell your own.

Student? Indie? Pro? Yes.

There is no limit to what you can achieve with Unreal Engine technology, whether you’re making a clever puzzle app or an open-world action game. Because Unreal Engine 4 is used by students, indies and large teams, it's an engine that you'll never outgrow.

One Engine,
One Workflow

With Unreal Engine 4, you can learn one engine and one workflow to meet all of your needs now and in the future. From mobile projects to super high-end console and PC games, Unreal Engine is in use by indies and professionals around the world.

Own The High End

Push your visuals to the limit on PC, consoles, and VR with custom lighting, shading, VFX and cinematic systems. Create beautiful visuals for architectural visualizations, simulations, digital films, and more.

EVE: Valkyrie by CCP Games

Everything You Need To
Get Started

The Marketplace provides a wealth of production-ready game content, asset packs, documentation, sample projects, tutorials, and demos. Get up to speed rapidly with high-quality, UE4-ready items suitable for a wide range of art styles and game genres.

Strategy Game

Sample Projects

Mixamo

Asset Packs

Lighting

Tutorials

  • Strategy Game

    Sample Projects

  • Mixamo

    Asset Packs

  • Lighting

    Tutorials

Use For Free

We give you everything so you can build anything. You get all tools, all features, all platforms, all source code, complete projects, sample content, regular updates and bug fixes.

5% When You Ship

The 5% royalty starts after the first $3,000 of revenue per product per quarter. Pay no royalty for film projects, contracting and consulting projects such as architecture, simulation and visualization.

Join The Community Now!

Get Unreal