CEL is a library built on top of the Crystal Space SDK to provide a set of commonly used abstractions specifically game programmers boosting productivity.
Written in C++, CEL can also be interacted with via Python or Xml. Using CELStart it is also not neccessary to use C++. This means that since the base code is C++, CEL is fast while being extremely easy to use yet, very simple if Python and/or Xml are used.
The first place to start is the manual.
Latest Release (1.0rc1)
CEL comes prepackaged with a number of example applications which can be found under apps/ in the CEL package.