Cloning this repository:

git clone git://gitorious.org/tuxmaniac/arctic_revenge.git arctic_revenge
cd arctic_revenge

Add this repository as a remote to an existing local repository:

git remote add arctic_revenge git://gitorious.org/tuxmaniac/arctic_revenge.git
git fetch arctic_revenge
git checkout -b my-local-tracking-branch arctic_revenge/master_or_other_branch