OptiScaler bridges upscaling/frame gen across GPUs
3D Engine with Blender Integration
aka ogre v2 - scene-oriented, flexible 3D C++ engine
Java/JavaFX/Kotlin Game Library (Engine)
3D Engine c++
Home theater software and entertainment hub for digital media
Dust3D is a cross-platform open-source 3D modeling software
A real-time 3D Engine written in Ada
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
Full featured MUD server with all the trimmings.
X3D is the open-standard format for 3D graphics scenes on the Web.
realistic driving simulation + functions for 2D/3D graphics
Machine graph audio engine for computer games
Modern, lightweight and efficient 2D level editor
A 16 bit style game on the 16-bit IBM XT.
Viewer and exporter for Unreal Engine 1-4 assets
Vivid is a modern C++ 3D engine using OpenGL4+
Java bindings for Skia