Mature, open source Pascal compiler
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A curated list of awesome Delphi/FreePascal/(any)Pascal frameworks, libraries, resources, and shiny things. Inspired by awesome-... stuff. Open source and freeware only!
Cross-platform (desktop, mobile, console, web) 3D and 2D game engine. Powerful visual editor. Support for glTF, X3D, IFC and more. Fast clean code using modern Pascal. Free and open-source.
An open source Delphi/Pascal game engine
Kraft Physics Engine is an open source Object Pascal physics engine library that can be used in 3D games.