I am stuck with a mac and want gmod11 AND i hate steam please help

i haz it try this. (BTW ITS FREAKIN FREE BABY!!!) http://www.youtube.com/watch?v=owBjnz2-Nek&feature=related is part 1, and part 2 is here http://www.youtube.com/watch?v=5gGlq-k5vzA&feature=related
do exactly what he says and good luck, i hope it will work with ur mac, try to do the same things he does on windows, but do the mac way to do it.