Mining Operations is a simple Irrlicht game that is basically a Minecraft clone
The whole thing will only require Irrlicht, and shall be compatible with Linux and Mac OSX.
./compile.sh
should be all you need, but you might want to tweak a few things (your compiler, for example).
Build status on OSX/Linux:
My code is under MIT license, but:
./cmake/FindIrrlicht.cmake
is by Andreas Schneider, and under BSD license.
Inih is by Ben Hoyt, and under BSD license.
Irrlicht is on zlib/libpng license, and uses Independent JPEG Group code, so does this project.