dwarf therapist (for arch) is not compatible with df past v.43.03 downgraded to this version, but got errors because libGLEW.so.1.10 is now long replaced by 2.0. So: $ pwd /usr/lib32 $ sudo ln -s libGLEW.so.2.0.0 libGLEW.so.1.10 now complains that the index file is corrupt, but making progress as per the https://wiki.archlinux.org/index.php/Dwarf_Fortress#Troubleshooting advice, I went to http://robertqualls.com/2013/06/24/getting-dwarf-fortress-to-work-on-linux.html and changed the persmissions settings in the /bin/dwarffortess and /usr/bin/dwarffortress and /opt/dwarffortress (more?) None of which worked. It does run with sudo, but as the post suggests, this is not a good ideal, so I'd like to find a fix.