AppGameKit vs Castle Game Engine
AppGameKit
darkbasic.com
Castle Game Engine
castle-engine.ioSide by side
| Figure | AppGameKit | Castle Game Engine |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Game Development Software | 8.2 (#24) | 8.6 (#12) |
| Spec score · Game Engine Software | 7.7 (#70) | 8.2 (#50) |
| Free plan | No | Yes |
| Purpose | AppGameKit Studio is a game development engine for writing games in BASIC or C++ and building for Windows, Android, and iOS from one codebase. | Castle Game Engine is a cross-platform 3D and 2D game engine with a visual editor and Object Pascal API. |
| Support | The company says it provides technical support through community forums and documentation without guaranteeing response times or resolutions. | The maker invites questions and feedback on its forum and offers meetings with the engine lead to discuss use, bugs, feature requests and cooperation. |
Plans
In their own words
AppGameKit
AppGameKit has no write-up on Specifiction yet; its figures are above.
Castle Game Engine
Castle Game Engine is a free, open-source engine for building 2D and 3D games with a visual editor and an Object Pascal API. The editor supports designing game worlds and interfaces, then building projects for multiple platforms. Listed targets include Windows, Linux, macOS, Android, and iOS, with mobile export, console export, and multiplayer tools. Graphics capabilities include shader effects, physically based rendering, shadows, mirrors, bump mapping, and post-processing. Supported formats include glTF, X3D, sprite sheets, and Spine 2D animations. The project lists Visual Studio Code, Lazarus, Delphi, Blender, and Sketchfab among supported tools and services. A command-line build tool, Docker image, and CI setup documentation support automation. The engine can be used for proprietary applications. Provided Linux binaries require GLIBC 2.34 or newer; older systems can compile from source. Supported operating systems must still receive vendor security support, with Windows 10 temporarily supported as of 2026.