Castle
Official Link: https://castle-engine.io/
Source code link: https://github.com/castle-engine/castle-engine
Description: Cross-platform (desktop, mobile, console) 3D and 2D game engine
Size: Small (<200mb)
Source License: Open Source
Price Model: Completely Free
Last Release Version: 7.0
Last Release Date: Feb. 5, 2026
Development Platforms: Windows Mac Linux
Publishing Platforms: Windows Mac Linux iOS Android Nintendo Switch
Programming Languages: Pascal
Genres: 2D 3D Agnostic
Features: Editor
Entry Last Updated: Feb. 18, 2026
Suggest change