The most comprehensive list of 3D graphics engines on the Web.

A 3D Graphics, Portable Library which provides basic set of tools for writing 3D applications, games for instance.

A free real-time 3D graphics library for Windows with features such as gouraud shading, phong shading, texture mapping, and particle systems.

An open source full-function game engine appropriate for a wide variety of modeling and simulation applications.

A free Object Oriented 3D toolkit. It is written in C++/STL. It has support for interactive 3D graphics using OpenGL and non-interactive sphere tracing.

Site for Gizmo3D, a high performance scene graph 3D engine.

A project to support 3Dfx Glide API on Posix OS.

The GNU 3DKit provides several frameworks to render 3D graphics in a GNUstep environment. Its main purpose is to render any kind of 3D graphics in real-time on commodity hardware, using an optimised scene graph architecture.

An open source 3D virtual world for Linux and OpenGL.

A 3D library for OpenGL and/or Direct3D. [Open source, LGPL]

Provide a unifying framework for the creation of Non-Photorealistic Animation and Rendering. Images, videos, publications and demos available.

A portable C++ scene graph library for 3D graphics applications. Its main distinguishing features are extensive support for multi-threading, reflectivity and good extensibility. [Open source, LGPL]

Portable Software using Portable Libraries. PLIB is a set of libraries that are designed to help developers of interactive 3D applications such as games. All PLIB libraries are portable to just about every modern Operating System.

A free (LGPL-ed) and open source, high level 3D graphics library which offers binary and source level compatibility with Apple's QuickDraw 3D API.

A 3D Studio file (*.3DS) reader and C++ X11 3d engine for Unix. [Freeware]

A portable C++ templated library for efficient manipulation, processing and displaying with OpenGL of triangle and tetrahedral meshes.

Source code for an entirely software 3D-engine and a DirectX 3D-engine, along with screen shots, downloads and documentation.

Tools for the development of 3D graphics. Primarily for use with development of online applications, such as e-Marketing and e-Learning, as well as games.