Simple, casual open source OpenGL games to implement soft

Hello all
I am looking for a simple casual game (open source) done in openGL. I need it to implement some other c++ communication component i build into it. Where can I find one? (I am using C++)
I am looking for a simple casual game (open source) done in openGL. I need it to implement some other c++ communication component i build into it. Where can I find one? (I am using C++)