Doryen based in Libtcod 1.5.1 - Refactoring struct and clear code, deleted the old C code and added new features and algorithms. The objective is a small 2D rendering engine (based in grid or tiles). It is written in an effort to create an engine being as lightweight and conceptually clean as possible.
Why do you think that https://github.com/thebracket/rltk is a good alternative to Doryen