Cross-platform (desktop, mobile, console, web) 3D and 2D game engine. Powerful visual editor. Support for open standards like glTF, X3D, IFC and more. Fast clean code using modern Pascal. Free and open-source.

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Comfortable visual designer and powerful code

2D game in editor

Visual editor

Design 3D and 2D games and user interfaces (with automatic scaling, anchors). Build and deploy the same project for multiple platforms. Integrate with various IDEs (Visual Studio Code, Lazarus, Delphi...).
Terrain with water and trees

Components

A lot of components to design viewport contents (3D and 2D world, using scenes, cameras, navigation, primitives, lights...) and user interface (buttons, images, labels...).
Village scene with outlines in glTF from Sketchfab ( https://sketchfab.com/3d-models/ftm-0970f30574d047b1976ba0aa6f2ef855 by Luis Fernandez )

Lots of ways to define data

Use 3D models, 2D animations, sprite sheets. Great integration with authoring tools like Blender or shops like Sketchfab thanks to using open standards like glTF and X3D.
Real-time water with caustics, reflections, shadows

Graphic effects

Composable shader effects, shadows, mirrors, physically based rendering, bump mapping, gamma correction...
"Escape from the Universe" on Nintendo Switch

Cross-platform

Target any platform (desktop: Windows, Linux, macOS, FreeBSD, Raspberry Pi, mobile: Android, iOS, console: Nintendo Switch, web). Work on any desktop platform. VR is coming as a next target soon.
FPC and Delphi

Clean and fast code

Native clean object-oriented programming language with modern Object Pascal. Fast builds, fast execution out-of-the-box.
Open-source, integrated with GitHub, GitLab, Jenkins

Open source and friendly to continuous integration

Tooling friendly to continuous integration. Command-line build tool and Docker image. Ready files and documentation how to use with GitHub Actions, GitLab CI, Jenkins. Engine is completely open-source and can be used to make any (including proprietary) applications.

Latest news

Animated volumetric fog shader effect

Shaders! Large new documentation how to use shaders with Castle Game Engine, and new "shader libraries" (for now: to convert world<->eye space comfortably), and new SetEffects methods

June 14, 2025

Xbox Controller used to control our Castle Game Engine demo

Game controllers (gamepads, joysticks) - new comfortable API, and example of walking and talking using gamepad from Delphi Summit 2025

June 8, 2025

Castle Game Engine at Delphi Day

Meet me in Netherlands (Amsterdam), Italy (Piacenza), Germany (Sundern) at the upcoming Pascal conferences

May 30, 2025

Portable editor on web

Web target progress: editor on web (proof of concept), OpenUrl, right mouse button, many new demos (creature AI, 3D model viewer, physics shooting, auto-tests...), Kraft and Vampyre Imaging on web, wasm-opt, embedded fonts

May 24, 2025

MacStadium developer logo

We're a happy member of MacStadium Open Source Developer Program.
They provide us access to a remote Mac machine, we use it to develop our macOS and iOS targets.

Uptime Robot logo Status of our servers.

Copyright Michalis Kamburelis and Castle Game Engine Contributors.

This webpage is also open-source and we welcome pull requests to improve it.

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