Crystal Space 3D SDK

Home: http://www.crystalspace3d.org/, https://sourceforge.net/projects/crystal/
Media: https://en.wikipedia.org/wiki/Crystal_Space
State: mature, inactive since 2015
Download: https://sourceforge.net/projects/crystal/files/
Platform: Windows, Linux, macOS
Keyword: framework, 3D
Code repository: https://github.com/kyanha/crystal.git (@created 2018, @stars 1, @forks 1), https://svn.code.sf.net/p/crystal/code (svn)
Code language: C, C++
Code license: LGPL-2.1
Code dependency: OpenGL

Building