About Maratis
From MaratisWiki
Maratis is a portable, simple and visual game development tool designed for artists and developers. Either use the simple Lua scripting langage or get access to the full Engine via a C++ API. The Engine has been tested on Windows, Mac, Linux and iOS and can be used virtually on any platform.
Maratis is Free and Open-source. The Editor is licensed under the GNU General Public License while the Engine is licensed under the zlib/libpng License. Maratis was originally created by Anaƫl Seghezzi.