3D Engine with Blender Integration
aka ogre v2 - scene-oriented, flexible 3D C++ engine
Java/JavaFX/Kotlin Game Library (Engine)
3D Engine c++
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
X3D is the open-standard format for 3D graphics scenes on the Web.
realistic driving simulation + functions for 2D/3D graphics
Modern, lightweight and efficient 2D level editor
Viewer and exporter for Unreal Engine 1-4 assets
Vivid is a modern C++ 3D engine using OpenGL4+
Java bindings for Skia
8-bit Graphical API for Java
Cross-platform 2D and 3D game engine
Character animation system for games and simulations.
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
A rudimentary 2D isometric engine
Realtime 3D engine for game development