openLima is a powerful engine for games and is licensed under the terms of the GNU Lesser General Public License (LGPL).
The LGPL, under which this project is licensed, makes openLima free to use in your project, even if they may be with commercial purposes.
You may ask, why the engine uses LGPL instead of GPL, well the reason is very simple, projects that are licensed under the terms of GPL aren't allowed to be used - even as a library - in projects that are using other licenses than GPL. The LGPL gives you the right to use this library in your project, no matter under which license your project is.
The engine is made using C++, OpenGL and the boost framework.
Besides the documentations in the code there is a compiled version generated by doxygen here.
I try to keep it updated, but it maybe not always be up-to-date. If you want, you can compile your own documentation using doxygen.
If you have any questions, feel free to ask me per mail or write me a message on GitHub