It's a graphics engine
There is a clear difference between a graphics engine and a game engine. Graffiks is a graphics engine.
This does not mean you cannot make games with graffiks. In fact, it's the intention that you do. By separating graphics
and game engine you gain a lot of flexibility. See the wiki page on philosophy
for more information
Building on linux
cmake .
make
sudo make install
Documentation
Documentation is available here
Note that github sets very aggressive cache headers, so you probably need to clear your browser cache to see updates to the docs.