Для запуска nQuake требуется libjpeg.so.8
Симлинк с девятой не помогает
root@debian:/home/deepforest/nquake# ./ezquake-linux-x86_64
./ezquake-linux-x86_64: error while loading shared libraries: libjpeg.so.8: cannot open shared object file: No such file or directory
root@debian:/home/deepforest/nquake#
root@debian:/usr# ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so.9 /usr/lib/libjpeg.so.8
root@debian:/usr#
root@debian:/home/deepforest/nquake# ./ezquake-linux-x86_64
./ezquake-linux-x86_64: /lib/libjpeg.so.8: version `LIBJPEG_8.0' not found (required by ./ezquake-linux-x86_64)
root@debian:/home/deepforest/nquake#