xorg-x11-Xvnc from home:AndreasSchwab:X project
Select Your Operating System
Add repository and install manually
For 13.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:AndreasSchwab:X/13.1/home:AndreasSchwab:X.repo zypper refresh zypper install xorg-x11-Xvnc