Create the Installation Directory ++

The first thing you'll need to do is decide where you want to install Quake II. The "standard" location is
/usr/local/games/quake2. This is where the .rpm packages put Quake II. If you choose to install
somewhere else, please substitute the appropriate path wherever /usr/local/games/quake2 is
mentioned.
Linux Quake HOWTO
3.2 Installing Quake II 18
So go ahead and create the directory you'll install Quake II in, and cd to it. The rest of these instructions will
assume that this is your current directory.
mkdir /usr/local/games/quake2
cd /usr/local/games/quake2