First make sure you have the needed devel libs available

#> apt-get install libfreetype6-dev \
                   mesag-dev \
                   libsdl1.2-dev \
                   libsdl1.2debian-arts \
                   libsdl-mixer1.2-dev

Make sure direct rendering is still enabled after installing the libs.

Get the game from http://scourge.sourceforge.net/ and unpack it

$> wget http://mesh.dl.sourceforge.net/sourceforge/scourge/scourge-0.6.tar.gz
$> tar -xzvf scourge-0.6.tar.gz

Do configure and build it

$> cd scourge-0.6
$> ./configure
$> make

Test it:

$> ./src/scourge