GLScene Engine for Delphi & C++Builder VCL Windows 32/64
Game engine supporting many 3D/2D formats and graphic effects
Game library for Pascal
Amateur 3D Game Engine
A tool for creating voxels for the DelphiDoom Engine
Asphyre is a cross-platform framework for Delphi and FreePascal.
Access to Irrlicht Engine SDK from assembler, C, Python, Basic, Pascal
Runtime graphic engine (use OpenGL) for ObjectPascal