Hi.
Sometimes I seek in twitter about "source code game"...and sometimes I found interesting things, such as:
Looking for C++/lua developer to help in creating strategy game engine. It's open source project. #gamedev #indiedev #development
And I started to talk with this guy.
And he put the repository:
Sage: This is C++ engine designed for use with strategy games. To compile you need a C++ 11 (some features are C++ 14 aswell) compiler
I have been trying to compile the project but this uses a newest libraries (for example SFML).
But it sound good.
Regards.