Does seem to be a problem with ioquake3 file. I copied the ioquake3 file from usr/lib/ioquake3/ in 16.04 and pasted to usr/lib/ioquake3/ in 18.04, made sure it is executable, then it worked for me
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1720493 Title: Segmentation fault on loading map even in safe mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ioquake3/+bug/1720493/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs