freedoom-freedm from openSUSE:Backports:SLE-15 project
Sty agraw n unessmres nnek/m
Add repository and install manually
For standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Backports:SLE-15/standard/openSUSE:Backports:SLE-15.repo zypper refresh zypper install freedoom-freedm