/usr/lib/libdynamicedt3d.so.1.8 is in libdynamicedt3d1.8 1.8.1+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libdynamicedt3d.so.1.8.1
/usr/lib/libdynamicedt3d.so.1.8.1