Basic Installation ================== To install on linux do: ./autogen.sh make make install (as root/with sudo) ./lindirs.sh This installs eternity to /usr/local/games and the eternity base dir to ~/.eternity/base . This is where the eternity EDFs and wads are stored, as well as screenshots (in base/shots) and configs (in base/doom and base/heretic). Note that lindirs.sh is the thing setting up the wad and screenshot dirs, as well as copying over the wads and edfs, not make install. lindirs.sh also checks that an environment variable called ETERNITYBASE exists (this points to the ee base dir) and if not, adds export ETERNITYBASE='~/.eternity/base' to your .bashrc .